Therapeutic targeting of tumour-associated macrophage receptors

Tumour-associated macrophages (TAM) are present in the majority of tumours, where they comprise one of the most abundant cell types, influencing tumour progression, metastasis, therapy resistance, and relapse. Hence, there is a great interest in targeting TAMs to improve and complement anti-cancer treatments. However, further studies are needed to validate the potential of exploiting TAM cell surface markers for cancer immunotherapy. Here, we review the function of TAMs, their involvement in tumorigenesis, metastasis, and therapy resistance. Furthermore, we summarize the current landscape of key TAM cell surface receptors that are being investigated as potential targets for cancer immunotherapy, highlighting the promise and challenges associated with these approaches.