Table I.

Origins of CAFs.

First author, year	Origin of CAFs	Cancer type	(Refs.)
Foster et al, 2018;	Resident tissue fibroblasts	Breast cancer	(22,23)
Kojima et al, 2010
Borriello et al, 2017	Marrow-derived mesenchymal stem cells	Neuroblastoma	(26)
Koliaraki et al, 2017	Marrow-derived mesenchymal stem cells	Colon cancer	(27)
Zeisberg et al, 2007	Endothelial cells	Pancreatic cancer	(29)
Nair et al, 2017	Cancer stem cells	Breast cancer	(28)
McDonald et al, 2015	Hematopoietic stem cells	Breast cancer	(31)
An et al, 2020	Vascular smooth muscle cells	Breast cancer	(25)
An et al, 2020	Pericytes	Breast cancer	(25)

CAFs, cancer-associated fibroblasts.