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  • Fibroblasts could...

Fibroblasts could guide the design of personalized treatment for lung cancer patients: Study

Hina ZahidWritten by Hina Zahid Published On 2021-10-28T09:00:08+05:30  |  Updated On 28 Oct 2021 3:30 AM GMT
Fibroblasts could guide the design of personalized treatment for lung cancer patients: Study
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BOSTON - Fibroblasts could serve as new key to enhancing personalized treatment for lung cancer patients, find researchers at Massachusetts General Hospital Three subtypes of cancer-associated fibroblasts (CAF) could guide the design of personalized treatment for lung cancer patients.The study has been published in the journal Cancer Cell .Solid tumors like non-small-cell lung cancer...

BOSTON - Fibroblasts could serve as new key to enhancing personalized treatment for lung cancer patients, find researchers at Massachusetts General Hospital Three subtypes of cancer-associated fibroblasts (CAF) could guide the design of personalized treatment for lung cancer patients.

The study has been published in the journal Cancer Cell .

Solid tumors like non-small-cell lung cancer (NSCLC) contain at least three major cellular components: cancer cells, immune cells and CAFs (which produce a tumor's cellular matrix and secrete signaling molecules). Current personalized cancer treatment approaches predominantly focus on targeting the cancer cells (e.g., oncogene-specific inhibitors) and the immune context (e.g., immune checkpoint blockade) of a tumor. And it had been unclear whether CAFs could be leveraged for designing more personalized treatment.

Unlike cancer cells that are readily distinguishable based on genomic aberrations, the characterization of CAFs' heterogeneity has been historically challenging. As a result, previous attempts to universally target and broadly deplete CAFs rarely improved patient outcomes in the clinic. "We need a new approach to characterize CAFs. Importantly, we need to gain a comprehensive understanding of different CAFs' biological functions and their clinical significance," says lead author Haichuan Hu, MD, PhD, research staff in the Mass General Cancer Center and an instructor in Medicine at Harvard Medical School.

As they reported in the paper, chosen as the cover story of Cancer Cell's November issue, the researchers derived CAFs from lung cancer biopsied tissue and compiled a large collection with a broad molecular spectrum. Using this living biobank of CAFs, the researchers could test the CAFs in the lab and compare their therapeutic impacts with the corresponding patients' treatment responses. By investigating CAFs' heterogeneity using the same therapeutics given to patients, they identified three subtypes with distinct biological functions and therapeutic implications:

--those robustly protective of cancers because they highly express the growth factors HGF and FGF7

--those moderately protective of cancers and highly expressing FGF7

--and those providing minimal protection and producing inflammatory factors, thus recruiting immune cells.

Thus, patients carrying the first two subtypes of CAFs may benefit from supplementing their treatment (e.g., EGFR TKI and ALK TKI) with additional drugs targeting MET (HGF receptor) and FGFR (FGF7 receptor), and patients carrying the third subtype of CAFs may benefit further from immuno-oncology strategies.

The MGH researchers further demonstrated that these functional subtypes of lung CAFs associate with patients' clinical outcomes to targeted therapies, and CAFs' functional distinctions are governed by their intrinsic transforming growth factor beta (TGF-β) signaling pathway activities that regulate the HGF and FGF7 expression levels.

For the first time, the researchers show the functional landscape of the broad spectrum of CAFs in lung cancer. The vast distinctions in CAFs' therapeutic and clinical impacts underscore the need to refine mainstream treatments based on this unique parameter. Biologists often refer to cancer as an ecosystem in which every cell matters during clinical management. Hu notes: "With many ongoing endeavors like this one, I am optimistic that one day a fully personalized lung cancer treatment plan can be developed by taking into account the specific feature of each cell in a patient's tumor."

https://www.sciencedirect.com/science/article/pii/S153561082100492X?via=ihub

fibroblastslung cancercancer cell
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

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