B7-H3 is a New Cancer-specific Endothelial Marker in Clear Cell Renal Cell Carcinoma
Overview
Affiliations
Background: The purpose of this study was to validate B7-H3 as a new cancer-specific endothelial marker in clear cell renal cell carcinoma.
Methods: B7-H3 expression patterns were compared between cancer and paired adjacent normal renal parenchyma by immunohistochemistry in paraffin-embedded specimens from 200 consecutive patients with clear cell renal cell carcinoma from January to December 2010. Four corpus luteum specimens were used as physiologic angiogenesis controls. B7-H3 messenger (m)RNA levels representing circulating endothelial cells were analyzed in 24 peripheral blood samples using real-time polymerase chain reaction. Collection and processing of tissue and peripheral blood samples was performed in compliance with the Declaration of Helsinki.
Results: Cancer cell-specific expression of B7-H3 was detected in 19% of clear cell renal cell carcinoma specimens, and tumor vasculature B7-H3 expression was confirmed in 98% (196) of cases. A diffuse pattern of vascular B7-H3 expression was associated with multiple adverse clinical and pathologic features (P<0.001). B7-H3 expression was not detected in paired adjacent normal renal parenchyma or vessels, or in luteal blood vessels. The B7-H3 mRNA level of circulating endothelial cells in peripheral blood was significantly higher in metastatic clear cell renal cell carcinoma (P<0.001).
Conclusion: This pilot study indicates that B7-H3 is a cancer-specific endothelial marker of potential importance for the development of tumor-specific, vascular-targeted therapies, and is a prognostic marker in clear cell renal cell carcinoma.
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PMID: 39766794 PMC: 11675885. DOI: 10.3390/genes15121527.
Wang F, Dong J, Xu Y, Jin J, Xu Y, Yan X Nat Commun. 2024; 15(1):10885.
PMID: 39738017 PMC: 11685534. DOI: 10.1038/s41467-024-55243-5.
Emaldi M, Rey-Iborra E, Marin A, Mosteiro L, Lecumberri D, Oyjord T Oncoimmunology. 2024; 13(1):2419686.
PMID: 39621555 PMC: 11540085. DOI: 10.1080/2162402X.2024.2419686.
Zhou Q, Xu J, Chen X, Ouyang J, Mao C, Zhang Z Front Oncol. 2024; 14:1445526.
PMID: 39319055 PMC: 11419956. DOI: 10.3389/fonc.2024.1445526.
New Emerging Targets in Cancer Immunotherapy: The Role of B7-H3.
Koumprentziotis I, Theocharopoulos C, Foteinou D, Angeli E, Anastasopoulou A, Gogas H Vaccines (Basel). 2024; 12(1).
PMID: 38250867 PMC: 10820813. DOI: 10.3390/vaccines12010054.