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  • Researchers report...

Researchers report novel findings for breast cancer patients with obesity, diabetes

Written By : Hina Zahid |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2021-12-11T09:00:18+05:30  |  Updated On 11 Dec 2021 9:00 AM IST
Researchers report novel findings for breast cancer patients with obesity, diabetes
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Boston -Obesity, insulin resistance and Type 2 diabetes are risk factors for breast cancer in post-menopausal women. The metabolic and inflammatory complications of obesity have a role in the formation of cancer. However, the cellular and molecular pathways that mediate breast cancer incidence, progression and metastasis in patients who also have metabolic complications are still not fully understood.

For the first time, researchers have found that exosomes (small vesicles secreted by many cell types and released into blood or nearby tissues and fluids), are involved in breast cancer progression and treatment resistance.

"We have identified a potential biological difference that might explain this higher risk and inform clinical decision making. This novel biology may also suggest new drugs or treatments to reduce risk for metastasis in cancer patients who are also obese and diabetic," explained corresponding author Gerald V. Denis, PhD, professor of medicine and pharmacology, and Shipley Professor, at Boston University School of Medicine.

Currently, more than 100 million Americans are currently diabetic or pre-diabetic with 90 percent of these cases due to obesity. If these adults develop an obesity-driven cancer, there is higher likelihood that the cancer will metastasize or become resistant to targeted treatments or hormone therapies.

The researchers isolated and characterized exosomes to identify factors that promote breast cancer progression and metastasis. They found that exosomes from insulin resistant adipocytes (fat cells), or from adipose tissue of adults with Type 2 diabetes, provoked much more dangerous changes in human breast cancer cells than exosomes from insulin sensitive or non-diabetic adipocytes.

According to Denis, metabolic diagnoses (blood glucose, A1c levels, lipid profiles, elevated insulin, cardiovascular risk markers like elevated CRP) are not normally considered by oncologists who are evaluating the risk of breast cancer progression, treatment resistance or recurrence. "It has also been difficult to identify blood tests that would assist clinicians to plan treatment or change treatment plans, because clinical trials have not yet been conducted to define the most important biomarkers. Inexpensive diagnostic and prognostic tests that are covered by insurance and that require only a small amount of blood would help oncologists improve treatment for these patients," he said.

Denis believes this discovery has implications for any obesity-related cancer (breast cancer in post-menopausal women, ovarian, uterine/endometrial, and (in men) prostate cancer, and (in both men and women) colorectal, gallbladder, renal, pancreatic, hepatic, thyroid, esophageal adenocarcinoma, and multiple myeloma) where nearby fat deposits may be metabolically abnormal and inflamed.

https://www.science.org/doi/10.1126/scisignal.abj2807

breast cancerobesitydiabetesscience signaling
Source : Science Signaling
Hina Zahid
Hina Zahid

    Hina Zahid Joined Medical Dialogue in 2017 with a passion to work as a Reporter. She coordinates with various national and international journals and association and covers all the stories related to Medical guidelines, Medical Journals, rare medical surgeries as well as all the updates in the medical field. Email: editorial@medicaldialogues.in. Contact no. 011-43720751

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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