» Articles » PMID: 29535360

MiR200-regulated CXCL12β Promotes Fibroblast Heterogeneity and Immunosuppression in Ovarian Cancers

Abstract

High-grade serous ovarian cancers (HGSOC) have been subdivided into molecular subtypes. The mesenchymal HGSOC subgroup, defined by stromal-related gene signatures, is invariably associated with poor patient survival. We demonstrate that stroma exerts a key function in mesenchymal HGSOC. We highlight stromal heterogeneity in HGSOC by identifying four subsets of carcinoma-associated fibroblasts (CAF-S1-4). Mesenchymal HGSOC show high content in CAF-S1 fibroblasts, which exhibit immunosuppressive functions by increasing attraction, survival, and differentiation of CD25FOXP3 T lymphocytes. The beta isoform of the CXCL12 chemokine (CXCL12β) specifically accumulates in the immunosuppressive CAF-S1 subset through a miR-141/200a dependent-mechanism. Moreover, CXCL12β expression in CAF-S1 cells plays a crucial role in CAF-S1 immunosuppressive activity and is a reliable prognosis factor in HGSOC, in contrast to CXCL12α. Thus, our data highlight the differential regulation of the CXCL12α and CXCL12β isoforms in HGSOC, and reveal a CXCL12β-associated stromal heterogeneity and immunosuppressive environment in mesenchymal HGSOC.

Citing Articles

From ductal carcinoma in situ to invasive breast cancer: the prognostic value of the extracellular microenvironment.

Hulahan T, Angel P J Exp Clin Cancer Res. 2024; 43(1):329.

PMID: 39716322 PMC: 11664872. DOI: 10.1186/s13046-024-03236-z.


Molecular and functional profiling of primary normal ovarian cells defines insights into cancer development and drug responses.

Piki E, Dini A, Rantanen F, Bentz F, Paavolainen L, Barker H Mol Ther Oncol. 2024; 32(4):200903.

PMID: 39634630 PMC: 11616607. DOI: 10.1016/j.omton.2024.200903.


Differential activity of MAPK signalling defines fibroblast subtypes in pancreatic cancer.

Veghini L, Pasini D, Fang R, Delfino P, Filippini D, Neander C Nat Commun. 2024; 15(1):10534.

PMID: 39627211 PMC: 11615044. DOI: 10.1038/s41467-024-54975-8.


Integrated analysis of single-cell and bulk transcriptome reveals hypoxia-induced immunosuppressive microenvironment to predict immunotherapy response in high-grade serous ovarian cancer.

Chen Q, Zhang Y, Wang C, Ding H, Chi L Front Pharmacol. 2024; 15:1450751.

PMID: 39605915 PMC: 11598517. DOI: 10.3389/fphar.2024.1450751.


SFRP1 mediates cancer-associated fibroblasts to suppress cancer cell proliferation and migration in head and neck squamous cell carcinoma.

Dong L, Li Y, Song X, Sun C, Song X BMC Cancer. 2024; 24(1):1165.

PMID: 39300373 PMC: 11411997. DOI: 10.1186/s12885-024-12907-1.


References
1.
Zhang L, Conejo-Garcia J, Katsaros D, Gimotty P, Massobrio M, Regnani G . Intratumoral T cells, recurrence, and survival in epithelial ovarian cancer. N Engl J Med. 2003; 348(3):203-13. DOI: 10.1056/NEJMoa020177. View

2.
Konecny G, Wang C, Hamidi H, Winterhoff B, Kalli K, Dering J . Prognostic and therapeutic relevance of molecular subtypes in high-grade serous ovarian cancer. J Natl Cancer Inst. 2014; 106(10). PMC: 4271115. DOI: 10.1093/jnci/dju249. View

3.
Xia H, Ng S, Jiang S, Cheung W, Sze J, Bian X . miR-200a-mediated downregulation of ZEB2 and CTNNB1 differentially inhibits nasopharyngeal carcinoma cell growth, migration and invasion. Biochem Biophys Res Commun. 2009; 391(1):535-41. DOI: 10.1016/j.bbrc.2009.11.093. View

4.
Lisanti M, Martinez-Outschoorn U, Sotgia F . Oncogenes induce the cancer-associated fibroblast phenotype: metabolic symbiosis and "fibroblast addiction" are new therapeutic targets for drug discovery. Cell Cycle. 2013; 12(17):2723-32. PMC: 3899185. DOI: 10.4161/cc.25695. View

5.
Ohlund D, Elyada E, Tuveson D . Fibroblast heterogeneity in the cancer wound. J Exp Med. 2014; 211(8):1503-23. PMC: 4113948. DOI: 10.1084/jem.20140692. View