Gastric cancer (GC) is the fifth most common malignancy and the fourth leading cause of cancer-related death worldwide. Cancer-associated fibroblasts (CAFs), an important cell type in the tumor microenvironment, play an important role in GC development. In this review, we describe the current knowledge of CAFs' heterogeneity and their role in GC invasion and metastasis. Currently, CAF-targeted cancer therapies are being rapidly explored and developed. However, the heterogeneity of CAFs limits the application of this therapy, so it is urgent to find specific markers and divide them into different subpopulations. With the development of single-cell RNA sequencing technology, researchers have used this technology to classify CAFs in many tumors, but whether it is applicable to GC and other tumors needs further study. And we believe that this technology will be in the near future utilized to sort CAFs on the basis of different cell markers and functions, so as to target tumor-promoting CAFs and inhibit tumor progression. Targeting CAFs by cell surface markers or normalizing the activated CAFs subsets may be an effective therapy, alone or in combination with other therapeutic approaches for GC treatment. Therefore, in the coming decades, the interaction between CAFs and GC cells will be still the focus of our research.

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http://dx.doi.org/10.4149/neo_2022_220513N511DOI Listing

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