HSPA1A and neoplasm: In contrast to tumour cells (see above), omTAM expressed numerous genes encoding cytokines or growth factors (n = 18), HSP70 family members (n = 3), cytokine/growth factor receptors (n = 8) and ECM‐associated proteins (n = 13) at significantly higher levels as their counterparts in ascites (Figure 9F), providing further evidence for a major contribution of TAM to the omental TME.