Early Cancer Survival Tied To Accelerated Ageing Arabian Post

(MENAFN- The Arabian Post) Young people who overcome cancer may face an added burden long after treatment ends, with mounting evidence showing that their bodies and brains can age faster than those of their peers. Researchers studying survivors diagnosed in childhood, adolescence and early adulthood report measurable signs of biological ageing beyond what would be expected for their chronological years, alongside cognitive changes that in some cases resemble patterns seen in much older adults.

Large cohort studies in North America and Europe have tracked survivors of leukaemia, lymphoma and solid tumours for decades. Investigators analysing blood markers have found shortened telomeres - protective caps at the ends of chromosomes associated with ageing - and altered DNA methylation patterns, both widely used indicators of biological age. In several studies, survivors treated with chemotherapy showed the most pronounced differences compared with siblings or age-matched controls.

Scientists describe this phenomenon as“accelerated ageing”, a term increasingly used in survivorship research. Dr Smita Bhatia of the University of Alabama at Birmingham, a leading authority on childhood cancer survivorship, has argued that therapies that save lives can also induce cellular stress that resembles decades of natural ageing. Similar findings have been reported by teams at St Jude Children's Research Hospital and the National Cancer Institute, which have followed thousands of survivors into middle age.

Brain imaging studies add another layer of concern. Magnetic resonance imaging has revealed reductions in white matter integrity and changes in cortical thickness among survivors treated at a young age. Researchers at institutions including Stanford University and the University of Toronto have linked these structural shifts to difficulties with attention, processing speed and working memory. In some cases, neurocognitive testing scores mirror those typically associated with individuals years older.

See also Bacteria redesigned to consume tumours internally

Clinicians stress that not every survivor experiences severe impairment, and many lead full professional and academic lives. However, population-level data suggest elevated risks of chronic health conditions such as cardiovascular disease, frailty and metabolic disorders appearing earlier than expected. A landmark analysis published in the Journal of Clinical Oncology found that by the age of 50, a substantial proportion of childhood cancer survivors had developed at least one serious chronic condition.

Chemotherapy, particularly alkylating agents and anthracyclines, is frequently cited as a central driver. These drugs damage rapidly dividing cancer cells but can also affect healthy tissue, generating oxidative stress and inflammation - processes closely associated with ageing biology. Radiation therapy, especially when directed at the brain, has also been linked to cognitive decline later in life.

Professor Daniel Mulrooney of St Jude has noted that while survival rates for childhood cancers now exceed 80 per cent in many high-income countries, survivorship care must adapt to the long-term realities patients face. He and others argue that the conversation has shifted from whether children survive to how well they age.

Emerging research explores the possibility that biological ageing clocks, based on epigenetic markers, may help identify those at highest risk. Studies published over the past two years indicate that survivors can appear biologically several years older than their chronological age, even in their twenties and thirties. Such findings have prompted calls for earlier screening for cognitive impairment and cardiovascular disease within survivorship programmes.

The potential link to dementia has drawn particular attention. While definitive evidence that young survivors face markedly higher rates of early-onset dementia remains limited, some longitudinal analyses suggest subtle cognitive decline that could compound over time. Neurologists caution that longer follow-up is needed, as many survivors are only now reaching ages when dementia risk typically rises.

See also Study finds no autism risk after maternal mRNA vaccination

At the same time, researchers emphasise that accelerated ageing is not inevitable or irreversible. Trials investigating structured exercise programmes show promise in improving cognitive performance and cardiovascular fitness among survivors. Physical activity has been shown in broader gerontology research to influence telomere length and epigenetic age, offering a plausible pathway for mitigation.

Dr Kevin Krull, a neuropsychologist at St Jude, has highlighted data suggesting that aerobic exercise may enhance white matter connectivity and executive function in survivors exposed to neurotoxic therapies. Lifestyle interventions focusing on diet, sleep and stress reduction are also under study, reflecting a growing recognition that survivorship care extends beyond oncology clinics.

Health systems face practical challenges. Survivors often transition from paediatric to adult services in their late teens or early twenties, a period that coincides with higher education and entry into the workforce. Cognitive difficulties, even when subtle, can affect academic attainment and employment stability. Advocacy groups argue that educational institutions and employers should be aware of potential late effects and provide appropriate support.

Policy responses vary widely. Some countries have established dedicated long-term follow-up clinics, integrating cardiology, endocrinology and neuropsychology with oncology. Others rely on general practitioners who may not be familiar with the unique risks this population carries. Researchers are urging the development of standardised surveillance guidelines informed by the latest evidence.

Notice an issue? Arabian Post strives to deliver the most accurate and reliable information to its readers. If you believe you have identified an error or inconsistency in this article, please don't hesitate to contact our editorial team at editor[at]thearabianpost[dot]com. We are committed to promptly addressing any concerns and ensuring the highest level of journalistic integrity.

MENAFN03032026000152002308ID1110809842