BUFFALO, NY — May 14, 2025 — A new #research paper was #published in Aging (Aging-US) Volume 17, Issue 4, on April 10, 2025, titled “Impact of Factor Xa inhibitors on cardiovascular events in older patients with nonvalvular atrial fibrillation.”

In this study, first author Masahiko Takahashi and corresponding author Keisuke Okawa led a research team from Kagawa Prefectural Central Hospital and Hyogo Medical University that investigated whether Factor Xa inhibitors (Xa-Is)—a type of blood thinner—can reduce the risk of heart-related complications in patients over 80 with nonvalvular atrial fibrillation (NVAF). The study found that patients using Xa-Is experienced significantly fewer cardiovascular problems than those on other anticoagulants. This finding is especially relevant, as older adults face a high risk of both stroke and heart disease.

Atrial fibrillation is a common heart rhythm disorder, particularly in the elderly, that increases the risk of blood clots, heart failure, and stroke. Anticoagulants are often prescribed to prevent clots, but not all types have the same effects on heart health. This study focused on comparing Xa-Is—specifically rivaroxaban, apixaban, and edoxaban—with commonly used drugs such as warfarin and dabigatran.

Researchers followed more than 1,000 patients aged 80 and above for up to five years to assess the long-term impact of these medications on cardiovascular outcomes. Patients who used Xa-Is had significantly lower rates of heart failure, artery disease, and cardiovascular death. The risk of cardiovascular problems in the Xa-I group was less than half that of those on non-Xa-I medications. These benefits remained even after adjusting for factors like age, existing heart conditions, and kidney function. Additionally, stroke and all-cause death rates were notably lower in the Xa-I group. 

“Xa-Is may be useful for not only anticoagulation but also the prevention of cardiovascular events in very old patients with NVAF.”

What makes Xa-Is different, according to the researchers, is their ability to inhibit a specific biological pathway—known as Factor Xa–PAR2—that contributes to inflammation, fibrosis, and damage in blood vessels and heart tissue. This effect extends beyond their traditional role in preventing blood clots. Although the study was conducted at a single medical center in Japan, its rigorous design and long follow-up period enhance the reliability of the findings for real-world clinical decision-making.

While further studies, especially across multiple centers, are needed to confirm the full range of benefits, this study strongly suggests that Xa-Is may offer broader cardiovascular protection for very old patients. The findings could influence how clinicians choose blood thinners for elderly individuals with atrial fibrillation, potentially improving both survival and quality of life in this growing population.

DOI - https://doi.org/10.18632/aging.206238

Corresponding author - Keisuke Okawa - k-ookawa@chp-kagawa.jp

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Keywords - aging, Factor Xa inhibitor, atrial fibrillation, older patient, cardiovascular events

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Aging (Aging-US)

Blood Thinners Called Factor Xa Inhibitors Lower Heart Risk in Elderly with Atrial Fibrillation

BUFFALO, NY - June 11, 2025 – A new #research paper was #published in Volume 16 of Oncotarget on May 29, 2025, titled “Durable complete response in leptomeningeal disease of EGFR mutated non-small cell lung cancer to amivantamab, an EGFR-MET receptor bispecific antibody, after progressing on osimertinib.”

A team led by first author Jinah Kim, from the University of Vermont Medical Center, and corresponding author Young Kwang Chae, from the Feinberg School of Medicine, reports a clinical case in which a patient with advanced non-small cell lung cancer (NSCLC) carrying rare EGFR mutations responded remarkably to amivantamab after other treatments had failed. The patient experienced a complete resolution of brain and spinal fluid metastases, suggesting that amivantamab may be a viable option for patients with uncommon genetic profiles and limited therapy options.

Lung cancer remains one of the leading causes of cancer-related deaths worldwide. Patients with NSCLC who have rare mutations in the EGFR gene often face limited treatment options and poor outcomes, especially when the disease spreads to the brain or spinal fluid. This case involved a 67-year-old man diagnosed with NSCLC who had two rare EGFR mutations—G719A and A289V. After disease progression on osimertinib and other therapies, the patient began amivantamab monotherapy.

Within six weeks, his lung tumor shrank by over 30 percent. By six months, imaging confirmed the disappearance of brain metastases and leptomeningeal disease, a serious condition affecting the membranes of the brain and spinal cord. Blood tests showed no detectable cancer-related mutations, and the patient, previously wheelchair-bound, regained the ability to walk and perform daily activities. This response has been sustained for more than 19 months.

 “Treatment produced a durable response over 19 months, including a 32.2% reduction in tumor size at six weeks, and complete resolution of brain metastases and LMD by six months.”

Amivantamab is a bispecific antibody that targets EGFR and MET, two key drivers of tumor growth. While it is approved in combination regimens for common EGFR mutations, its effectiveness as a single agent in rare mutations or in treating brain metastases remains largely unproven. This case challenges the assumption that large antibody drugs cannot cross the blood-brain barrier and suggests that amivantamab may have potential in managing central nervous system involvement. Further research is needed to clarify how the drug achieves these effects and to explore its broader use in patients with rare EGFR mutations and limited treatment options.

This case highlights three key findings: amivantamab may be effective against rare EGFR mutations, can be used as monotherapy, and may overcome the challenges of the blood-brain barrier. Although based on a single patient, the results provide encouraging evidence to support further investigation of amivantamab in treating difficult-to-manage forms of NSCLC.

DOI - https://doi.org/10.18632/oncotarget.28730

Correspondence to - Young Kwang Chae - young.chae@northwestern.edu

Video short - https://www.youtube.com/watch?v=RJX3rmtH7h8

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Keywords - cancer, amivantamab, monotherapy, rare EGFR mutation, NSCLC, leptomeningeal disease

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Oncotarget

Rare Non-Small Cell Lung Cancer with Brain Metastases Responds to Amivantamab Monotherapy

As we age, our brains become more sensitive to stress and disease. A recent study sheds light on a lesser-known risk: reduced oxygen levels. The study, titled “Defining the hypoxic thresholds that trigger blood-brain barrier disruption: the effect of age” and recently published as the cover for Volume 17, Issue 5 of Aging (Aging-US), found that low oxygen—also called hypoxia—can harm the aging brain by disrupting the blood-brain barrier (BBB). This damage may contribute to cognitive decline, memory problems, and an increased risk of dementia.

Understanding Hypoxia in the Brain

The brain relies on a steady supply of oxygen to stay healthy. When oxygen levels fall—a condition known as hypoxia—the brain undergoes changes to adapt. These changes include the remodeling of blood vessels and, importantly, a weakening of the blood-brain barrier. The BBB acts as a filter, protecting brain tissue from harmful substances. When it breaks down, it can lead to inflammation, brain cell damage, and cognitive issues.

Hypoxia is common in older adults, especially those with conditions like sleep apnea, chronic obstructive pulmonary disease (COPD), heart failure, and asthma. That is why understanding the connection between low oxygen and the aging brain is crucial for preventing long-term neurological damage.

Full blog - https://aging-us.org/2025/06/oxygen-deprivation-and-the-aging-brain-a-hidden-trigger-for-cognitive-decline/

Paper DOI - https://doi.org/10.18632/aging.206241

Corresponding author - Richard Milner - rmilner@sdbri.org

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Keywords - aging, blood-brain barrier integrity, endothelial, proliferation, microglia, chronic mild hypoxia, hypoxic threshold

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Oxygen Deprivation and the Aging Brain: A Hidden Trigger for Cognitive Decline

BUFFALO, NY — June 12, 2025 — A new #research paper was #published in Aging (Aging-US) Volume 17, Issue 5, on May 3, 2025, titled “APOE genotype and biological age impact inter-omic associations related to bioenergetics.”

In this study, led by first author Dylan Ellis and corresponding author Noa Rappaport from the Institute for Systems Biology, researchers discovered that different versions of the APOE gene—particularly ε2 and ε4—are linked to metabolic patterns associated with aging and Alzheimer’s disease risk. Both variants were linked to increased levels of diacylglycerols, a type of fat molecule connected to insulin resistance and inflammation, suggesting shared disruptions in how the body regulates energy.

The research team analyzed data from over 2,200 adults without an Alzheimer’s diagnosis, exploring how APOE genotypes influence biological age, a measure of health that reflects how quickly or slowly someone is aging at a cellular level. They found that the same metabolic disturbances seen in ε2 carriers were also present in people considered biologically older, revealing unexpected overlap between genetic risk and aging-related metabolic changes.

To examine these connections in more detail, the researchers used a multi-omics approach, combining blood-based metabolism and protein data, gut bacteria analysis from stool samples, and clinical chemistry data. This method allowed them to map how genetic differences and biological aging affect the body’s energy systems. They observed altered connections between glucose metabolism, inflammatory markers, and key molecules that play roles in energy production, indicating early disruptions that could contribute to age-related diseases.

One of the study’s surprising findings was that the ε2 variant, usually associated with longer life and reduced Alzheimer’s risk, showed metabolic traits similar to those found in insulin-resistant individuals. This suggests that ε2 may carry metabolic disadvantages earlier in life, with its protective effects becoming more pronounced later. Conversely, ε4—linked to greater Alzheimer’s risk—may exert its influence based on interactions with lifestyle factors like diet, sex, and overall health status.

“‘Omics association patterns of ε2-carriers and increased biological age were also counter-intuitively similar, displaying significantly increased associations between insulin resistance markers and energy-generating pathway metabolites.”

By identifying these shared biological signatures, this study offers a new framework for understanding how genes and metabolism work together to influence aging. These findings could support more personalized health strategies aimed at delaying biological aging and reducing the risk of chronic diseases. As aging populations grow worldwide, understanding these pathways is essential to improving healthspan.

DOI - https://doi.org/10.18632/aging.206243

Corresponding author - Noa Rappaport - noa.rappaport@isbscience.org

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Keywords - aging, apolipoprotein E (APOE), biological age, metabolism, Alzheimer’s disease (AD), insulin resistance

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APOE Gene Variants Linked to Metabolic Signatures of Aging and Alzheimer's Risk

BUFFALO, NY - June 13, 2025 – A new #review was #published in Volume 16 of Oncotarget on June 4, 2025, titled “Applying the unattainable triangle in cardio-oncology care: Balancing cost, quality, and time.”

In this review, first author John Hoverson, corresponding author Stella Pak, and colleagues from the University of Texas Health Science Center at San Antonio explore how the “unattainable triangle”—a business concept describing the trade-offs between cost, quality, and time—can help improve healthcare delivery in cardio-oncology. As cancer treatments become more complex and often affect the heart, this model highlights the challenge of providing care that is fast, effective, and affordable.

Cardio-oncology is an emerging field focused on preventing and managing heart problems caused by cancer therapies. The review explains that high-quality cancer care often requires advanced diagnostics and close collaboration between oncologists and cardiologists, which can drive up costs and time demands. Understanding how to balance these pressures is essential for delivering better outcomes for patients.

Many cancer survivors face long-term cardiovascular complications due to their treatment. Early monitoring and intervention can reduce these risks. However, these improvements often come with financial burdens, especially when key tests are not covered by insurance. Meanwhile, both patients and clinicians must manage the burden of tight appointment schedules, long clinic visits, and increasing demands on their time.

To improve care quality, the authors emphasize the need for interdisciplinary teamwork and ongoing education. Surveys show that many clinicians are still unfamiliar with cardio-oncology guidelines, which can compromise care. The review also highlights the potential for artificial intelligence and digital tools to streamline care delivery, reduce wait times, and support both patients and providers.

Importantly, the authors point out that improving one area—such as quality—can come at the expense of others, like cost or time. They encourage healthcare systems to take a balanced approach, setting clear goals and using integrated care models that consider all three elements of the triangle together.

“While a perfect model for managing the unattainable triangle may be simply that, ‘unattainable’, investments in research, patient-centered care, data-driven decision-making, and financial alignment with payers will be crucial to the long-term success of both patient outcomes and the organization’s profitability.”

While achieving perfect balance may be difficult, the review suggests that using the unattainable triangle as a guiding framework can help hospitals and clinicians make smarter, more sustainable decisions. As cardio-oncology continues to expand in response to the growing number of cancer survivors with cardiovascular needs, this approach could help improve patient outcomes and strengthen healthcare systems.

DOI - https://doi.org/10.18632/oncotarget.28738

Correspondence to - Stella Pak - stellacpak@outlook.com

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Keywords - cancer, cardio-oncology, quality improvement, cardiology, oncology

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Balancing Time, Cost, and Quality in Cardio-Oncology Care

BUFFALO, NY — June 17, 2025 — A new #research paper was #published in Aging (Aging-US) Volume 17, Issue 5, on May 1, 2025, titled “Oxytocin modulates insulin and GLP-1 secretion in pancreatic islets.”

In this study, scientists from Fukushima Medical University School of Medicine investigated how the hormone oxytocin (Oxt) influences insulin levels by acting on specific cells in the pancreas. The team led by first author Kasumi Hattori and corresponding authors Kenju Shimomura and Yuko Maejima discovered that oxytocin may indirectly increase insulin secretion by triggering another hormone, GLP-1, from within the pancreas. This finding could lead to new strategies for improving blood sugar control in people with diabetes.

Oxytocin is commonly known for its roles in childbirth and social bonding, but scientists have also been exploring its effects on metabolism. While previous studies offered mixed results about whether oxytocin raises or lowers blood sugar, this research brings new clarity. The study focused on oxytocin’s impact on insulin and a hormone called GLP-1, which helps regulate insulin production. Researchers tested this by using mice with and without oxytocin receptors and found that oxytocin’s ability to raise insulin levels depended on the presence of these receptors and high blood sugar conditions.

Researchers found that oxytocin stimulates the release of “intra-islet GLP-1,” a form of GLP-1 produced inside the pancreas rather than the intestine. In the pancreas, insulin is produced by beta cells, while alpha cells produce glucagon, a hormone that raises blood sugar. But recent research, including this study, has shown that alpha cells can also release GLP-1, which in turn helps beta cells secrete insulin. Oxytocin appears to increase this internal GLP-1 release, especially when blood sugar levels are high, thereby leading to insulin release in a natural and targeted way.

In this study researchers were also able to detect the difference between oxytocin’s effect on blood sugar and its effect on insulin. They observed that right after oxytocin was given, blood sugar levels rose in all mice—even in those that lacked oxytocin receptors. However, only the mice with working oxytocin receptors showed a later increase in insulin. This suggests that oxytocin may trigger insulin production through a separate, receptor-dependent pathway involving the hormone GLP-1.

"WT mice showed a significant increase in insulin levels at 15-min, while OxtR KO mice did not."

This indirect action—oxytocin triggering alpha cells to release GLP-1, which then acts on beta cells—may represent a novel mechanism for controlling insulin release. It also explains why oxytocin does not increase insulin in low-glucose conditions, making it a potentially safer option for regulating blood sugar.

As treatments for type 2 diabetes increasingly focus on GLP-1–based drugs, this study opens the door to using oxytocin or similar compounds to naturally enhance the body’s own insulin-producing system. With further research, this mechanism could help develop new therapies that better mimic the body’s natural glucose control, particularly beneficial for older adults with diabetes.

DOI - https://doi.org/10.18632/aging.206244

Corresponding authors - Kenju Shimomura - shimomur@fmu.ac.jp, and Yuko Maejima - maejimay@fmu.ac.jp

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New Hormonal Pathway Links Oxytocin to Insulin Secretion in the Pancreas

Bladder cancer remains a significant clinical concern, with more than 85,000 new diagnoses and nearly 19,000 deaths reported annually in the United States. While current treatments like surgery, chemotherapy, and radiation can be effective for early-stage disease, many patients with advanced or recurrent cancer face limited options.

A recent review, published in Oncotarget by researchers from the University of California, Irvine, analyzes the growing body of evidence supporting the combination of radiation therapy and immunotherapy for bladder cancer. Led by Nazmul Hasan, the work synthesizes clinical data and biological mechanisms that suggest this strategy could enhance anti-tumor responses in specific patient groups.

Full blog - https://www.oncotarget.org/2025/06/16/exploring-a-combined-approach-radiation-and-immunotherapy-in-bladder-cancer/

Paper DOI - https://doi.org/10.18632/oncotarget.28723

Correspondence to - Nazmul Hasan - nhasan1@hs.uci.edu

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Exploring a Combined Approach: Radiation and Immunotherapy in Bladder Cancer

BUFFALO, NY - June 17, 2025 – A new #research paper was #published in Volume 16 of Oncotarget on June 10, 2025, titled “Exceptional responders to immunotherapy in pancreatic cancer: A multi-institutional case series of a rare occurrence.”

The study, led by first author Kavin Sugumar and corresponding author Jordan M. Winter, from University Hospitals Seidman Cancer Center, reports on a rare group of pancreatic cancer (PC) patients who responded remarkably well to immunotherapy, a treatment typically considered ineffective for this cancer type. The analysis, which includes data from 14 patients across multiple U.S. institutions, identifies outcomes that could help refine treatment strategies for one of the most aggressive and deadly forms of cancer.

“Between 2020–21, 471 oncologists from 91 major cancer centers in the United States were contacted.”

Pancreatic cancer has among the lowest survival rates and few effective therapies. While immunotherapy has transformed the treatment landscape for several other cancers, it generally offers little benefit for pancreatic cancer. However, this study highlights a small but important group of patients who experienced significant and sustained responses to immune-based treatment without chemotherapy. Most had advanced or metastatic disease and had already progressed after standard treatments.

Among the 14 patients, 82% had partial tumor shrinkage, and nearly one-third had a notable decrease in tumor markers. The median progression-free survival was 12 months, and most patients were still alive at follow-up, with survival rates of 80% at one year and 70% at two years. These outcomes contrast sharply with standard therapies, which often provide only a few months of benefit for similar patients.

Interestingly, while some patients had high microsatellite instability (MSI-high)—a known marker for immunotherapy success—more than half did not, suggesting other biological mechanisms may be involved. This result highlights the need for new biomarkers to be discovered to predict treatment response in future studies.

This case series is the largest focused exclusively on exceptional immunotherapy responders in pancreatic cancer. By excluding patients who received chemotherapy, the study isolates the effects of immune-based drugs, including PD-1 inhibitors such as pembrolizumab and nivolumab, CTLA-4 inhibitors like ipilimumab, and agents targeting macrophages.

While the sample size is small, the findings challenge the assumption that immunotherapy is ineffective for nearly all pancreatic cancer patients. The study suggests that, under certain biological conditions, this treatment can be remarkably successful. Further research is needed to understand the underlying mechanisms.

This work supports the need to reconsider how clinical trials are designed for pancreatic cancer and who is eligible for immunotherapy. Broader criteria and more personalized molecular profiling could help uncover hidden opportunities for treatment in this highly lethal cancer.

DOI - https://doi.org/10.18632/oncotarget.28739

Correspondence to - Jordan M. Winter - jordan.winter@UHHospitals.org

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Rare Pancreatic Cancer Patients Show Strong Response to Immunotherapy

BUFFALO, NY — June 18, 2025 — A new #research paper was #published in Aging (Aging-US) Volume 17, Issue 5, on May 12, 2025, titled “Frailty transitions in electronic health records: who first? what first?”

The study, led by Fabienne Hershkowitz Sikron from Meuhedet HMO, analyzed how frailty develops over time in older adults using electronic health record data from nearly 120,000 individuals aged 65 and above. Researchers found that frailty worsened in over 13% of participants within a year, particularly among women, adults aged 85 or older, and people with chronic illnesses, while nearly 3% showed signs of improvement. The findings highlight early indicators of decline that could help guide preventive care and improve outcomes for aging populations.

Frailty is a condition marked by increased vulnerability to health complications and tends to change gradually. The study used the Meuhedet Electronic Frailty Index (MEFI) to track yearly transitions in frailty among older adults in Israel. While many people remained in the same frailty category, a significant proportion experienced deterioration in just one year, and a smaller group improved.

“Worsening frailty is defined as a higher frailty level one year later in 2024 compared to 2023. A new frailty deficit is defined as a deficit appearing in 2024 that was not present in 2023.”

Those most at risk of worsening included adults over 85, women, individuals from lower socio-economic backgrounds, and members of the Arab sector. Additional predictors of decline included recent hospitalizations, multiple chronic diseases, and signs of cognitive or mobility issues. Importantly, the first signs of worsening were often not new chronic conditions but more manageable health deficits such as sleep disturbances, muscle weakness, hearing loss, and memory decline. Those who improved were more likely to be younger, male, from higher socio-economic backgrounds, and have fewer chronic conditions and hospitalizations.

The study also found that common chronic illnesses like diabetes and hypertension were often already present and did not usually signal the beginning of frailty progression. Instead, declines in overall function and quality of life were more frequently the first new issues to appear. This suggests that early intervention on modifiable health deficits could delay or prevent further decline.

This work is one of the first large-scale, real-world studies to identify both who is most likely to worsen first and what health problems typically appear first. The authors emphasize the importance of using routinely collected electronic medical data to monitor frailty and tailor care. By doing so, health providers can implement timely strategies to reduce disease burden and support aging individuals in maintaining independence.

These findings support the creation of proactive health programs focused on maintaining physical strength, cognitive function, and sensory abilities. Preventing frailty progression can reduce hospitalizations, ease disease burden, and help older adults maintain independence and a higher quality of life.

DOI - https://doi.org/10.18632/aging.206247

Corresponding author - Fabienne Hershkowitz Sikron - fabian_hershkowitz@meuhedet.co.il

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Early Signs of Frailty Detected Through Health Records in Aging Adults

Dr. Josh Mitteldorf summarizes his #research perspective #published in Volume 17, Issue 5 of Aging (Aging-US), titled “Methylation clocks for evaluation of anti-aging interventions.”

DOI - https://doi.org/10.18632/aging.206245

Corresponding author - Josh Mitteldorf - aging.advice@gmail.com

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Abstract

Methylation clocks have found their way into the community of aging research as a way to test anti-aging interventions without having to wait for mortality statistics. But methylation is a primary means of epigenetic control, and presumably has evolved under strong selection. Hence, if methylation patterns change consistently at late ages it must mean one of two things. Either (1) the body is evolved to destroy itself (with inflammation, autoimmunity, etc.), and the observed methylation changes are a means to this end; or (2) the body detects accumulated damage, and is ramping up repair mechanisms in a campaign to rescue itself. My thesis herein is that both Type 1 and Type 2 changes are occurring, but that only Type 1 changes are useful in constructing methylation clocks to evaluate anti-aging interventions. This is because a therapy that sets back Type 1 changes to an earlier age state has stopped the body from destroying itself; but a therapy that sets back Type 2 changes has stopped the body from repairing itself. Thus, a major challenge before the community of epigenetic clock developers is to distinguish Type 2 from Type 1. The existence of Type 1 epigenetic changes is in conflict with conventional Darwinian thinking, and this has prompted some researchers to explore the possibility that Type 1 changes might be a form of stochastic epigenetic drift. I argue herein that what seems like directed epigenetic change really is directed epigenetic change. Of five recent articles on “stochastic methylation clocks,” only one (from the Conboy lab) is based on truly stochastic changes. Using the Conboy methodology and a methylation database, I construct a measure of true methylation drift, and show that its correlation with age is too low to be useful.

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Keywords - aging, methylation, stochastic, entropy, programmed aging, aging clock, epigenetic clock

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Behind the Study: Using Methylation Clocks to Evaluate Anti-Aging Interventions

BUFFALO, NY – June 20, 2025 – A new #review was #published in Volume 16 of Oncotarget on June 10, 2025, titled “Beyond DNA damage response: Immunomodulatory attributes of CHEK2 in solid tumors.”

In this paper, led by first author Helen Qian and corresponding author Crismita Dmello from Northwestern University Feinberg School of Medicine, researchers compiled growing evidence that the CHEK2 gene, long known for its role in repairing DNA damage, may also influence how tumors respond to immunotherapy. Their analysis suggests that problems in CHEK2 function might make cancer cells more vulnerable to immune system attacks, highlighting a new opportunity to improve treatment outcomes in solid tumors.

Immune checkpoint inhibitors (ICIs) have transformed cancer treatment; however, they are effective in only a subset of patients. This review suggests that tumors with reduced CHEK2 activity may accumulate more mutations that produce signals the immune system can recognize. These signals, known as neoantigens, help immune cells identify and destroy cancer cells more effectively. The review connects this process not only to CHEK2’s established role in the DNA damage response but also to a newly proposed function in shaping the immune environment of tumors.

CHEK2 normally helps maintain genomic stability by enabling precise DNA repair. When this function is lost, cells rely on more error-prone repair methods, leading to additional mutations. These mutations can increase tumor mutational burden, which has been linked to better outcomes with immunotherapy. Beyond DNA repair, the review highlights a second mechanism: activation of the cGAS-STING pathway. This pathway detects fragments of damaged DNA and triggers inflammation that attracts immune cells to the tumor.

The authors highlight studies where CHEK2-deficient tumors responded better to PD-1 inhibitors, a common type of immune checkpoint inhibitor. In both lab models and early-stage clinical settings, CHEK2 loss was associated with increased infiltration of CD8+ T cells—immune cells essential for attacking cancer cells. In cancers such as glioblastoma and renal cell carcinoma, which are typically resistant to immunotherapy, reduced CHEK2 expression was linked with more favorable immune activity and higher expression of interferon-related genes.

The compiled evidence points to CHEK2 as a potential biomarker for identifying patients likely to respond to immunotherapy. In addition, combining CHEK2 inhibitors with existing immunotherapies may enhance anti-tumor effects, particularly in cancers with limited treatment options. The review notes that some clinical trials using the CHEK1/2 inhibitor prexasertib alongside immune checkpoint therapies have already shown promising early results.

“The initial results from this Phase I clinical trial support the immunomodulatory role of CHEK2 expression and even suggest CHEK2 potentiates immunosuppression.”

Although more research is needed to confirm these mechanisms and improve treatment approaches, this review underscores the expanding role of DNA repair genes like CHEK2—not only in maintaining genome integrity but also in helping the immune system fight cancer.

DOI - https://doi.org/10.18632/oncotarget.28740

Correspondence to - Crismita Dmello - stellacpak@outlook.com

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CHEK2 Identified as a Potential Target to Improve Immunotherapy in Solid Tumors

Cancer and aging are two sides of age-related tumorigenesis.

The mission of the journal is to understand the mechanisms surrounding aging and age-related diseases, including cancer as the main cause of death in the modern aged population.

The journal aims to promote 1) treatment of age-related diseases by slowing down aging, 2) validation of anti-aging drugs by treating age-related diseases, and 3) prevention of cancer by inhibiting aging. (Cancer and COVID-19 are age-related diseases.)

Read about the Aging (Aging-US) Scientific Integrity Process: https://aging-us.com/scientific-integrity

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