STING1 and neoplasm: 2020) (Figure S23D). Colon26 tumour‐bearing mice were then administered IR700@Nb289‐OMVs plus NIR, along with clodronate or H151 (Figure 5M). Both clodronate and H151 significantly abrogated the tumour‐suppressive effect of IR700@Nb289‐OMVs plus NIR (Figure 5N, S24A, B), indicating the importance of the STING pathway in TAMs for OMVs and NIR‐initiated antitumour activity.