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Jiang C, Zhang Q, Shanti RM, Shi S, Chang TH, Carrasco L, Alawi F, Le AD. Mesenchymal Stromal Cell-Derived Interleukin-6 Promotes Epithelial-Mesenchymal Transition and Acquisition of Epithelial Stem-Like Cell Properties in Ameloblastoma Epithelial Cells. Stem Cells 2017; 35:2083-2094. [PMID: 28699252 DOI: 10.1002/stem.2666] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Revised: 05/21/2017] [Accepted: 06/29/2017] [Indexed: 01/05/2023]
Abstract
Epithelial-mesenchymal transition (EMT), a biological process associated with cancer stem-like or cancer-initiating cell formation, contributes to the invasiveness, metastasis, drug resistance, and recurrence of the malignant tumors; it remains to be determined whether similar processes contribute to the pathogenesis and progression of ameloblastoma (AM), a benign but locally invasive odontogenic neoplasm. Here, we demonstrated that EMT- and stem cell-related genes were expressed in the epithelial islands of the most common histologic variant subtype, the follicular AM. Our results revealed elevated interleukin (IL)-6 signals that were differentially expressed in the stromal compartment of the follicular AM. To explore the stromal effect on tumor pathogenesis, we isolated and characterized both mesenchymal stromal cells (AM-MSCs) and epithelial cells (AM-EpiCs) from follicular AM and demonstrated that, in in vitro culture, AM-MSCs secreted a significantly higher level of IL-6 as compared to the counterpart AM-EpiCs. Furthermore, both in vitro and in vivo studies revealed that exogenous and AM-MSC-derived IL-6 induced the expression of EMT- and stem cell-related genes in AM-EpiCs, whereas such effects were significantly abrogated either by a specific inhibitor of STAT3 or ERK1/2, or by knockdown of Slug gene expression. These findings suggest that AM-MSC-derived IL-6 promotes tumor-stem like cell formation by inducing EMT process in AM-EpiCs through STAT3 and ERK1/2-mediated signaling pathways, implying a role in the etiology and progression of the benign but locally invasive neoplasm. Stem Cells 2017;35:2083-2094.
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Affiliation(s)
- Chunmiao Jiang
- Department of Oral and Maxillofacial Surgery and Pharmacology.,Key Laboratory of Oral Clinical Medicine, College of Stomatology.,Department of Orthodontics, the Affiliated Hospital of Medical College, Qingdao University, Shandong, People's Republic of China
| | - Qunzhou Zhang
- Department of Oral and Maxillofacial Surgery and Pharmacology
| | - Rabie M Shanti
- Department of Oral and Maxillofacial Surgery and Pharmacology.,Department of Oral and Maxillofacial Surgery, Penn Medicine Hospital of the University of Pennsylvania, Perelman Center for Advanced Medicine, Philadelphia, Pennsylvania, USA.,Department of Otorhinolaryngology-Head and Neck Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Shihong Shi
- Department of Oral and Maxillofacial Surgery and Pharmacology
| | - Ting-Han Chang
- Department of Oral and Maxillofacial Surgery and Pharmacology
| | - Lee Carrasco
- Department of Oral and Maxillofacial Surgery and Pharmacology.,Department of Oral and Maxillofacial Surgery, Penn Medicine Hospital of the University of Pennsylvania, Perelman Center for Advanced Medicine, Philadelphia, Pennsylvania, USA
| | - Faizan Alawi
- Department of Pathology, University of Pennsylvania School of Dental Medicine, Philadelphia, Pennsylvania, USA
| | - Anh D Le
- Department of Oral and Maxillofacial Surgery and Pharmacology.,Department of Oral and Maxillofacial Surgery, Penn Medicine Hospital of the University of Pennsylvania, Perelman Center for Advanced Medicine, Philadelphia, Pennsylvania, USA
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Ngô C, Nicco C, Leconte M, Chéreau C, Arkwright S, Vacher-Lavenu MC, Weill B, Chapron C, Batteux F. Protein kinase inhibitors can control the progression of endometriosis in vitro and in vivo. J Pathol 2010; 222:148-57. [PMID: 20821752 DOI: 10.1002/path.2756] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Endometriosis affects 6-10% of women in their reproductive years, causing chronic pelvic pain and infertility. Its pathogenesis remains poorly understood and current treatments, based on hormonal therapy or surgery, are often insufficient. The purpose of our study was to investigate the role of the ERK pathway in the development of endometriosis and to test the effects of protein kinase inhibitors on the proliferation of endometriotic cells in vitro and in vivo. We studied ex vivo human endometrial and endometriotic cells in culture. Stromal and epithelial cells were extracted from endometrial and endometriotic biopsies from patients with endometriosis and from patients without endometriosis. The ERK pathway was explored by western blot on cell lysates and by ELISA on total crushed specimens of endometrium. Cells in culture were treated with A771726, PD98059, and U0126. Human endometriotic lesions were implanted in nude mice. Mice were treated with A771726, leflunomide, PD98059, U0126 or PBS during 2 weeks before sacrifice and extraction of the endometriotic implants for histological examination. We found that the ERK pathway was significantly activated in endometriotic cells and in endometrial cells from patients with endometriosis compared to endometrial cells of control patients, both by ELISA and by western blot. This phenomenon was associated with an increased proliferation of endometriotic cells compared to endometrial cells. Treating endometriotic cells with A771726, PD98059 or U0126 abrogated the phosphorylation of ERK and significantly decreased the cellular proliferation in vitro. In vivo, A771726, leflunomide, PD98059, and U0126 controlled the growth of endometriotic implants in the mouse model of endometriosis. Our study shows that protein kinase inhibitors could be new candidates to treat endometriosis. However, further studies are needed to evaluate their effects and tolerability in humans.
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Affiliation(s)
- Charlotte Ngô
- Université Paris Descartes, Faculté de Médecine, EA 1833 AP-HP Hôpital Cochin, 75679 Paris Cedex 14, France
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