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STAT3:FOXM1 and MCT1 drive uterine cervix carcinoma fitness to a lactate-rich microenvironment
- Source :
- Tumor Biology. 37:5385-5395
- Publication Year :
- 2015
- Publisher :
- Springer Science and Business Media LLC, 2015.
-
Abstract
- Uterine cervix cancer is the second most common malignancy in women worldwide with human papillomavirus (HPV) as the etiologic factor. The two main histological variants, squamous cell carcinomas (SCC) and adenocarcinomas (AC), resemble the cell morphology of exocervix and endocervix, respectively. Cancer metabolism is a cancer hallmark conditioned by the microenvironment. As uterine cervix homeostasis is dependent on lactate, we hypothesized lactate plays a role in uterine cervix cancer progression. Using in vitro (SiHa-SCC and HeLa-AC) and BALB-c/SCID models, we demonstrated that lactate metabolism is linked to histological types, with SCC predominantly consuming and AC producing lactate. MCT1 is a key factor, allowing lactate consumption and being regulated in vitro by lactate through the FOXM1:STAT3 pathway. In vivo models showed that SCC (SiHa) expresses MCT1 and is dependent on lactate to grow, whereas AC (HeLa) expresses MCT1 and MCT4, with higher growth capacities. Immunohistochemical analysis of tissue microarrays (TMA) from human cervical tumors showed that MCT1 expression associates with the SCC type and metastatic behavior of AC, whereas MCT4 expression concomitantly increases from in situ SCC to invasive SCC and is significantly associated with the AC type. Consistently, FOXM1 expression is statistically associated with MCT1 positivity in SCC, whereas the expression of FOXO3a, a FOXM1 functional antagonist, is linked to MCT1 negativity in AC. Our study reinforces the role of the microenvironment in the metabolic adaptation of cancer cells, showing that cells that retain metabolic features of their normal counterparts are positively selected by the organ's microenvironment and will survive. In particular, MCT1 was shown to be a key element in uterine cervix cancer development; however, further studies are needed to validate MCT1 as a suitable therapeutic target in uterine cervix cancer.
- Subjects :
- STAT3 Transcription Factor
0301 basic medicine
Pathology
medicine.medical_specialty
Uterine Cervical Neoplasms
Cell Cycle Proteins
Cervix Uteri
Adenocarcinoma
Biology
Cell morphology
HeLa
Mice
03 medical and health sciences
Tumor Microenvironment
medicine
Animals
Humans
Lactic Acid
Oncogene Proteins
Tumor microenvironment
Tissue microarray
Forkhead Box Protein M1
Forkhead Box Protein O3
Cancer
General Medicine
medicine.disease
biology.organism_classification
Xenograft Model Antitumor Assays
Gene Expression Regulation, Neoplastic
030104 developmental biology
Cancer cell
Carcinoma, Squamous Cell
Cancer research
FOXM1
Female
HeLa Cells
Signal Transduction
Subjects
Details
- ISSN :
- 14230380 and 10104283
- Volume :
- 37
- Database :
- OpenAIRE
- Journal :
- Tumor Biology
- Accession number :
- edsair.doi.dedup.....bfdd3c47da186dc467963c84469dc397