. 2020 May 18;21(10):3552. doi: 10.3390/ijms21103552

Table 2.

Surface markers of T_RM cells and their main functions.

Function
	CD4⁺/ CD8⁺	Co-receptors of the T cell receptor (TCR) [59]
Surface marker	CD 49a⁺		Secretion of granzyme B, perforin, IFN-γ and achieving high cytotoxic properties following IL-15 stimulation [63]
	CD 69⁺		Blockade of the sphingosine 1-phosphate receptor 1 (S1PR1) [75]
	CD 103⁺		Participation in binding TRM cells to E-cadherin to promote retention within epithelial tissues [72]