Table 2.

Reports of Race/Ethnic Differences in Immune Cell Numbers in Breast Tumors

Cancer type	Observation	Reference
Tumor-associated macrophages	Number of CD68-positive macrophages is higher in breast tumors of AA patients than EA patients. Chemotaxis-related gene signature in AA tumors.	28
	Proliferating cellular nuclear antigen–positive macrophages are increased in breast tumors of Latina and AA women when compared with EA women.	66
	High numbers of tumor-associated macrophages in breast tumors of Nigerian women.	67
	High immune cell infiltration, including CD163-positive macrophages, in breast tumors of Kenyan women.	68

AA, African-American; EA, European-American.