2021
DOI: 10.1038/s41590-021-00921-5
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Heme catabolism by tumor-associated macrophages controls metastasis formation

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Cited by 84 publications
(72 citation statements)
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“…Finally, he described a subset of TAM (F4/80 high ) which overexpress HO-1 (heme-oxygenase-1) that plays a critical role in promoting tumor metastasis and immunosuppression. Interestingly, in metastatic melanoma patients, HO-1 expression on various monocyte populations discriminates survival as a good prognostic marker in case of low expression (30). To conclude, HO-1 + myeloid cells represent a new prognostic indicator and a novel antimetastatic target.…”
Section: Session 4 -Tissue Microenvironmentmentioning
confidence: 86%
“…Finally, he described a subset of TAM (F4/80 high ) which overexpress HO-1 (heme-oxygenase-1) that plays a critical role in promoting tumor metastasis and immunosuppression. Interestingly, in metastatic melanoma patients, HO-1 expression on various monocyte populations discriminates survival as a good prognostic marker in case of low expression (30). To conclude, HO-1 + myeloid cells represent a new prognostic indicator and a novel antimetastatic target.…”
Section: Session 4 -Tissue Microenvironmentmentioning
confidence: 86%
“…Interestingly, RORC1 induces C/EBPβ to sustain myeloid-derived suppressor cell expansion [22]. More recently, a new population of prometastatic TAMs, endowed with high rate of heme catabolism, was shown to be induced by an M-CSF-dependent activation of the transcription factor Nrf2 [23]. Therefore, in order to obtain a more comprehensive understanding of myeloid evolution in cancer carriers, we cannot ignore the integration of multistep mechanisms that alter the commitment of hematopoietic progenitors, their mobilization towards the periphery and the subsequent infiltration of tumors that expose myeloid cells to tumor-derived factors (TDFs) [8].…”
Section: Emergency Myelopoiesismentioning
confidence: 99%
“…Evidence has been also provided that the hematopoietic-specific phospholipase C (PLC)-β2 lipolytic enzyme promotes the mobilization of hematopoietic stem cells by decreasing their lipid raft-mediated bone marrow retention [27]. Complement component 3a receptor 1 (C3aR1) antagonists restrained neutrophil mobilization, and melanoma-bearing C3aR1-deficient mice had reduced tumor growth and frequency of heme oxygenase 1 (HO-1) expressing monocytic blood precursors of HO-1 + TAMs [23,28]. Blocking the C-C motif chemokine ligand 2 (CCL2)/C-C chemokine receptor type 2 (CCR2) pathway is also a rational approach to inhibit the accumulation of M-MDSCs and TAMs in the TME and to limit the mobilization of bone marrow monocytes into the blood stream, since the activation of CCR2 attenuates the CXCR4 anchoring signaling [29,30].…”
Section: Myeloid Cells Mobilizationmentioning
confidence: 99%
“…This population, activated by Nrf2, localizes in tumor lesions, a signal that is coordinated by p50 NF-κB-CSF-R1-C3aR axis. This promotes more HO-1 expression, immunosuppression, and therefore lower survival rate of melanoma patients [67].…”
Section: Paradoxical Roles Of Ho-1 In Cancermentioning
confidence: 99%