An international research team has discovered a groundbreaking immunotherapy method that could potentially add years to healthy aging.
The research, published in the journal EMBO Molecular Medicine, introduces an innovative method to address health issues arising from poor lifestyle choices, which can cause damage to biomolecules and contribute to the development of diseases later in life.
Brock University Professor of Health Sciences Newman Sze and his team developed an approach that involves directing the immune system to clear out accumulated proteins damaged by inactive lifestyles, unhealthy diets, various stresses and genetic factors, root causes of aging and age-related diseases.
Age-related chronic diseases are a major health-care burden. The researchers therefore developed a first-of-its-kind monoclonal antibody drug that harnesses the immune system to target and remove these abnormal proteins, providing an effective treatment for age-related health problems.
As time passes, environmental stresses and physiological conditions cause biomolecular damages in tissues. One of these changes, called isoDGR, triggers chronic inflammation in the body and leads to tissue degeneration.
Uncontrolled chronic inflammation, in turn, can lead to conditions such as cardiovascular disease, cancer, Type 2 diabetes, arthritis and Alzheimer’s disease.
While the accumulation of isoDGR has been identified as a ‘molecular clock’ of aging, the new research paper says potential benefits of targeting these structures with specific immunotherapies remain largely unknown.
Sze and his team created monoclonal antibodies called isoDGR-mAb. These lab-engineered proteins are designed to boost the immune system’s ability to attack unhealthy cells or abnormal molecules. Such immunotherapies are already being used to treat various cancers, autoimmune disorders and infectious diseases.
Using animal models, the team found that these lab-engineered molecules stimulated the immune system to clear out the proteins in tissues that had been damaged by isoDGR. Treatment with isoDGR-mAb not only doubled lifespan but also preserved behaviour and co-ordination functions and reduced pro-inflammatory cytokine levels in the circulation and body tissues.
Sze says the team’s findings could lead to the development of immunotherapy-based interventions to extend the healthy lifespan of humans.
The existing treatments for age-related diseases primarily address symptoms. Sze says that their pioneering mAb, uniquely focused on targeting the root causes of chronic diseases, is anticipated to substantially extend human health span.
News source: Brock University
