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Torre-Castro J, Rodríguez M, Alonso-Alonso R, Mendoza Cembranos MD, Díaz-Alejo JF, Rebollo-González M, Borregón J, Nájera Botello L, Mahillo-Fernández I, Samimi M, Kervarrec T, Requena L, Piris MÁ. LT and SOX9 expression are associated with gene sets that distinguish Merkel cell polyomavirus (MCPyV)-positive and MCPyV-negative Merkel cell carcinoma. Br J Dermatol 2024; 190:876-884. [PMID: 38261397 DOI: 10.1093/bjd/ljae033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 01/13/2024] [Accepted: 01/15/2024] [Indexed: 01/24/2024]
Abstract
BACKGROUND Merkel cell carcinoma (MCC) is an aggressive malignant neuroendocrine tumour. There are two subsets of MCC, one related to Merkel cell polyomavirus (MCPyV) and the other to ultraviolet radiation (UVR). MCPyV-positive and MCPyV-negative MCCs have been considered to be different tumours, as the former harbour few DNA mutations and are not related to UVR, and the latter usually arise in sun-exposed areas and may be found in conjunction with other keratinocytic tumours, mostly squamous cell carcinomas. Two viral oncoproteins, large T antigen (LT; coded by MCPyV_gp3) and small T antigen (sT; coded by MCPyV_gp4), promote different carcinogenic pathways. OBJECTIVES To determine which genes are differentially expressed in MCPyV-positive and MCPyV-negative MCC; to describe the mutational burden and the most frequently mutated genes in both MCC subtypes; and to identify the clinical and molecular factors that may be related to patient survival. METHODS Ninety-two patients with a diagnosis of MCC were identified from the medical databases of participating centres. To study gene expression, a customized panel of 172 genes was developed. Gene expression profiling was performed with nCounter technology. For mutational studies, a customized panel of 26 genes was designed. Somatic single nucleotide variants (SNVs) were identified following the GATK Best Practices workflow for somatic mutations. RESULTS The expression of LT enabled the series to be divided into two groups (LT positive, n = 55; LT negative, n = 37). Genes differentially expressed in LT-negative patients were related to epithelial differentiation, especially SOX9, or proliferation and the cell cycle (MYC, CDK6), among others. Congruently, LT displayed lower expression in SOX9-positive patients, and differentially expressed genes in SOX9-positive patients were related to epithelial/squamous differentiation. In LT-positive patients, the mean SNV frequency was 4.3; in LT-negative patients it was 10 (P = 0.03). On multivariate survival analysis, the expression of SNAI1 [hazard ratio (HR) 1.046, 95% confidence interval (CI) 1.007-1.086; P = 0.02] and CDK6 (HR 1.049, 95% CI 1.020-1.080; P = 0.001) were identified as risk factors. CONCLUSIONS Tumours with weak LT expression tend to co-express genes related to squamous differentiation and the cell cycle, and to have a higher mutational burden. These findings are congruent with those of earlier studies.
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Affiliation(s)
| | - Marta Rodríguez
- Pathology, Hospital Universitario Fundación Jiménez Díaz, Universidad Autónoma, Madrid, Spain
- Center for Biomedical Network on Cancer (CIBERONC), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Ruth Alonso-Alonso
- Pathology, Hospital Universitario Fundación Jiménez Díaz, Universidad Autónoma, Madrid, Spain
- Center for Biomedical Network on Cancer (CIBERONC), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | | | - Jesús Frutos Díaz-Alejo
- Pathology, Hospital Universitario Fundación Jiménez Díaz, Universidad Autónoma, Madrid, Spain
| | - Marcos Rebollo-González
- Pathology, Hospital Universitario Fundación Jiménez Díaz, Universidad Autónoma, Madrid, Spain
| | - Jennifer Borregón
- Pathology, Hospital Universitario Fundación Jiménez Díaz, Universidad Autónoma, Madrid, Spain
| | - Laura Nájera Botello
- Pathology Department, Hospital Universitario Puerta de Hierro, Universidad Autónoma, Madrid, Spain
| | - Ignacio Mahillo-Fernández
- Biostatistics and Epidemiology Unit, Hospital Universitario Fundación Jiménez Díaz, Fundación Instituto de Investigación Sanitaria, Madrid, Spain
| | | | | | | | - Miguel Ángel Piris
- Pathology, Hospital Universitario Fundación Jiménez Díaz, Universidad Autónoma, Madrid, Spain
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Di Bartolomeo L, Vaccaro F, Irrera N, Borgia F, Li Pomi F, Squadrito F, Vaccaro M. Wnt Signaling Pathways: From Inflammation to Non-Melanoma Skin Cancers. Int J Mol Sci 2023; 24:ijms24021575. [PMID: 36675086 PMCID: PMC9867176 DOI: 10.3390/ijms24021575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/10/2023] [Accepted: 01/11/2023] [Indexed: 01/15/2023] Open
Abstract
Canonical and non-canonical Wnt signaling pathways are involved in cell differentiation and homeostasis, but also in tumorigenesis. In fact, an exaggerated activation of Wnt signaling may promote tumor growth and invasion. We summarize the most intriguing evidence about the role of Wnt signaling in cutaneous carcinogenesis, in particular in the pathogenesis of non-melanoma skin cancer (NMSC). Wnt signaling is involved in several ways in the development of skin tumors: it may modulate the inflammatory tumor microenvironment, synergize with Sonic Hedgehog pathway in the onset of basal cell carcinoma, and contribute to the progression from precancerous to malignant lesions and promote the epithelial-mesenchymal transition in squamous cell carcinoma. Targeting Wnt pathways may represent an additional efficient approach in the management of patients with NMSC.
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Affiliation(s)
- Luca Di Bartolomeo
- Department of Clinical and Experimental Medicine, Section of Dermatology, University of Messina, 98125 Messina, Italy
| | - Federico Vaccaro
- Department of Dermatology, University of Modena and Reggio Emilia, 41124 Modena, Italy
| | - Natasha Irrera
- Department of Clinical and Experimental Medicine, Section of Pharmacology, University of Messina, 98125 Messina, Italy
| | - Francesco Borgia
- Department of Clinical and Experimental Medicine, Section of Dermatology, University of Messina, 98125 Messina, Italy
| | - Federica Li Pomi
- Department of Clinical and Experimental Medicine, Section of Dermatology, University of Messina, 98125 Messina, Italy
| | - Francesco Squadrito
- Department of Clinical and Experimental Medicine, Section of Pharmacology, University of Messina, 98125 Messina, Italy
| | - Mario Vaccaro
- Department of Clinical and Experimental Medicine, Section of Dermatology, University of Messina, 98125 Messina, Italy
- Correspondence:
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Deepe RN, Drummond JR, Wolters RA, Fitzgerald EA, Tarolli HG, Harvey AB, Wessels A. Sox9 Expression in the Second Heart Field; A Morphological Assessment of the Importance to Cardiac Development with Emphasis on Atrioventricular Septation. J Cardiovasc Dev Dis 2022; 9:376. [PMID: 36354775 PMCID: PMC9699451 DOI: 10.3390/jcdd9110376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/26/2022] [Accepted: 10/28/2022] [Indexed: 11/06/2022] Open
Abstract
Failure to form the septal structures that separate the left and right cardiac chambers results in defects that allow shunting of blood from one side of the heart to the other, leading to the mixing of oxygenated and de-oxygenated blood. The atrioventricular (AV) mesenchymal complex, consisting of the AV cushions, the Dorsal Mesenchymal Protrusion (DMP), and the mesenchymal cap, plays a crucial role in AV septation. Cells found in these structures derive from different cell lineages. In this study we have investigated the role of the transcription factor Sox9 in the Second Heart Field (SHF) with the emphasis on the formation of the atrioventricular septal complex. Using a mouse model in which Sox9 is conditionally deleted from the SHF we demonstrate that in this model virtually all mouse embryos develop septal abnormalities, including complete atrioventricular septal defects (cAVSDs) and isolated ventricular septal defects. Our morphological analyses indicate that perturbation of the development of the mesenchymal cap appears to play a crucial role in the pathogenesis of the atrial septal defects observed in the AVSDs and suggests that this component of the AV mesenchymal complex might play a more important role in AV septation than previously appreciated.
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Affiliation(s)
| | | | | | | | | | | | - Andy Wessels
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC 29425, USA
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4
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Ievlev V, Jensen-Cody CC, Lynch TJ, Pai AC, Park S, Shahin W, Wang K, Parekh KR, Engelhardt JF. Sox9 and Lef1 Regulate the Fate and Behavior of Airway Glandular Progenitors in Response to Injury. Stem Cells 2022; 40:778-790. [PMID: 35639980 PMCID: PMC9406614 DOI: 10.1093/stmcls/sxac038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 05/12/2022] [Indexed: 11/12/2022]
Abstract
Cartilaginous airways of larger mammals and the mouse trachea contain at least 3 well-established stem cell compartments, including basal cells of the surface airway epithelium (SAE) and ductal and myoepithelial cells of the submucosal glands (SMG). Here we demonstrate that glandular Sox9-expressing progenitors capable of SAE repair decline with age in mice. Notably, Sox9-lineage glandular progenitors produced basal and ciliated cells in the SAE, but failed to produce secretory cells. Lef1 was required for glandular Sox9 lineage contribution to SAE repair, and its deletion significantly reduced proliferation following injury. By contrast, in vivo deletion of Sox9 enhanced proliferation of progenitors in both the SAE and SMG shortly following injury, but these progenitors failed to proliferate in vitro in the absence of Sox9, similar to that previously shown for Lef1 deletion. In cystic fibrosis ferret airways, Sox9 expression inversely correlated with Ki67 proliferative marker expression in SMG and the SAE. Using in vitro and ex vivo models, we demonstrate that Sox9 is extinguished as glandular progenitors exit ducts and proliferate on the airway surface and that Sox9 is required for migration and proper differentiation of SMG, but not surface airway, progenitors. We propose a model whereby Wnt/Lef1 and Sox9 signals differentially regulate the proliferative and migratory behavior of glandular progenitors, respectively.
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Affiliation(s)
- Vitaly Ievlev
- Department of Anatomy and Cell Biology, University of Iowa, Iowa City, IA, USA
| | | | - Thomas J Lynch
- Department of Anatomy and Cell Biology, University of Iowa, Iowa City, IA, USA
| | - Albert C Pai
- Department of Cardiothoracic Surgery, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
| | - Soo Park
- Department of Anatomy and Cell Biology, University of Iowa, Iowa City, IA, USA
| | - Weam Shahin
- Department of Anatomy and Cell Biology, University of Iowa, Iowa City, IA, USA
| | - Kai Wang
- Department of Biostatistics, University of Iowa College of Public Health, Iowa City, IA, USA
| | - Kalpaj R Parekh
- Department of Cardiothoracic Surgery, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
| | - John F Engelhardt
- Department of Anatomy and Cell Biology, University of Iowa, Iowa City, IA, USA
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5
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Chen H, Chen X, Zeng F, Fu A, Huang M. Prognostic value of SOX9 in cervical cancer: Bioinformatics and experimental approaches. Front Genet 2022; 13:939328. [PMID: 36003340 PMCID: PMC9394184 DOI: 10.3389/fgene.2022.939328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 06/30/2022] [Indexed: 11/13/2022] Open
Abstract
Among gynecological cancers, cervical cancer is a common malignancy and remains the leading cause of cancer-related death for women. However, the exact molecular pathogenesis of cervical cancer is not known. Hence, understanding the molecular mechanisms underlying cervical cancer pathogenesis will aid in the development of effective treatment modalities. In this research, we attempted to discern candidate biomarkers for cervical cancer by using multiple bioinformatics approaches. First, we performed differential expression analysis based on cervical squamous cell carcinoma and endocervical adenocarcinoma data from The Cancer Genome Atlas database, then used differentially expressed genes for weighted gene co-expression network construction to find the most relevant gene module for cervical cancer. Next, the Gene Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment analyses were performed on the module genes, followed by using protein–protein interaction network analysis and Cytoscape to find the key gene. Finally, we validated the key gene by using multiple online sites and experimental methods. Through weighted gene co-expression network analysis, we found the turquoise module was the highest correlated module with cervical cancer diagnosis. The biological process of the module genes focused on cell proliferation, cell adhesion, and protein binding processes, while the Kyoto Encyclopedia of Genes and Genomes pathway of the module significantly enriched pathways related to cancer and cell circle. Among the module genes, SOX9 was identified as the hub gene, and its expression was associated with cervical cancer prognosis. We found the expression of SOX9 correlates with cancer-associated fibroblast immune infiltration in immune cells by Timer2.0. Furthermore, cancer-associated fibroblast infiltration is linked to cervical cancer patients’ prognosis. Compared to those in normal adjacent, immunohistochemical and real-time quantitative polymerase chain reaction (qPCR) showed that the protein and mRNA expression of SOX9 in cervical cancer were higher. Therefore, the SOX9 gene acts as an oncogene in cervical cancer, interactive with immune infiltration of cancer-associated fibroblasts, thereby affecting the prognosis of patients with cervical cancer.
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Affiliation(s)
- Huan Chen
- Department of Obstetrics and Gynecology, Zhu Zhou Central Hospital, Zhuzhou, Hunan China
| | - Xupeng Chen
- Laboratory Medicine Center, Zhu Zhou Central Hospital, Zhuzhou, Hunan China
| | - Fanhua Zeng
- Department of Obstetrics and Gynecology, Zhu Zhou Central Hospital, Zhuzhou, Hunan China
| | - Aizhen Fu
- Department of Obstetrics and Gynecology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Meiyuan Huang
- Department of Pathology, Zhu Zhou Central Hospital, Zhuzhou, Hunan China
- *Correspondence: Meiyuan Huang,
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HPV8 Reverses the Transcriptional Output in Lrig1 Positive Cells to Drive Skin Tumorigenesis. Cancers (Basel) 2022; 14:cancers14071662. [PMID: 35406439 PMCID: PMC8997052 DOI: 10.3390/cancers14071662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/18/2022] [Accepted: 03/23/2022] [Indexed: 11/17/2022] Open
Abstract
K14-HPV8-CER transgenic mice express the complete early genome region of human papillomavirus type 8 (HPV8) and develop skin tumours attributed to the expansion of the Lrig1+ stem cell population. The correlation between HPV8-induced changes in transcriptional output in the stem cell compartment remains poorly understood. To further understand the oncogenic pathways underlying skin tumour formation we examined the gene expression network in skin tumours of K14-HPV8-CER mice and compared the differentially expressed genes (DEG) with those of the Lrig1-EGFP-ires-CreERT2 mice. Here, we report 397 DEGs in skin tumours of K14-HPV8-CER mice, of which 181 genes were up- and 216 were down-regulated. Gene ontology and KEGG pathway enrichment analyses suggest that the 397 DEGs are acting in signalling pathways known to be involved in skin homeostasis. Interestingly, we found that HPV8 early gene expression subverts the expression pattern of 23 cellular genes known to be expressed in Lrig1+ keratinocytes. Furthermore, we identified putative upstream regulating transcription factors as well as miRNAs in the control of these genes. These data provide strong evidence that HPV8 mediated transcriptional changes may contribute to skin tumorigenesis, offering new insights into the mechanism of HPV8 driven oncogenesis.
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Overexpression of Flii during Murine Embryonic Development Increases Symmetrical Division of Epidermal Progenitor Cells. Int J Mol Sci 2021; 22:ijms22158235. [PMID: 34361001 PMCID: PMC8348627 DOI: 10.3390/ijms22158235] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/28/2021] [Accepted: 07/29/2021] [Indexed: 01/24/2023] Open
Abstract
Epidermal progenitor cells divide symmetrically and asymmetrically to form stratified epidermis and hair follicles during late embryonic development. Flightless I (Flii), an actin remodelling protein, is implicated in Wnt/β-cat and integrin signalling pathways that govern cell division. This study investigated the effect of altering Flii on the divisional orientation of epidermal progenitor cells (EpSCs) in the basal layer during late murine embryonic development and early adolescence. The effect of altering Flii expression on asymmetric vs. symmetric division was assessed in vitro in adult human primary keratinocytes and in vivo at late embryonic development stages (E16, E17 and E19) as well as adolescence (P21 day-old) in mice with altered Flii expression (Flii knockdown: Flii+/−, wild type: WT, transgenic Flii overexpressing: FliiTg/Tg) using Western blot and immunohistochemistry. Flii+/− embryonic skin showed increased asymmetrical cell division of EpSCs with an increase in epidermal stratification and elevated talin, activated-Itgb1 and Par3 expression. FliiTg/Tg led to increased symmetrical cell division of EpSCs with increased cell proliferation rate, an elevated epidermal SOX9, Flap1 and β-cat expression, a thinner epidermis, but increased hair follicle number and depth. Flii promotes symmetric division of epidermal progenitor cells during murine embryonic development.
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8
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Kim KI, Jung KE, Shin YB, Kim CD, Yoon TJ. Sorafenib induces pigmentation via the regulation of β-catenin signalling pathway in melanoma cells. Exp Dermatol 2020; 31:57-63. [PMID: 32391926 DOI: 10.1111/exd.14112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 05/04/2020] [Accepted: 05/04/2020] [Indexed: 01/23/2023]
Abstract
We conducted large-scale screening test on drugs that were already approved for other diseases to find pigmentation-modulating agents. Among drugs with potential for pigmentation control, we selected sorafenib and further investigated the effect on pigmentation using HM3KO melanoma cells. As a result of treating melanoma cells with sorafenib, pigmentation was promoted in terms of melanin content and tyrosinase activity. Sorafenib increased mRNA and protein levels of pigmentation-related genes such as MITF, tyrosinase and TRP1. To uncover the action mechanism, we investigated the effect of sorafenib on the intracellular signalling pathways. Sorafenib reduced phosphorylation of AKT and ERK, suggesting that sorafenib induces pigmentation through inhibition of the AKT and ERK pathways. In addition, sorafenib significantly increased the level of active β-catenin, together with activation of β-catenin signalling. Mechanistic study revealed that sorafenib decreased phosphorylation of serine 9 (S9) of GSK3β, while it increased phosphorylation of tyrosine 216 (Y216) of GSK3β. These results suggest that sorafenib activates the β-catenin signalling through the regulation of GSK3β phosphorylation, thereby affecting the pigmentation process.
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Affiliation(s)
- Kyung-Il Kim
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea.,Department of Medical Science, School of Medicine, Chungnam National University, Daejeon, Korea.,Department of Dermatology and Institute of Health Sciences, School of Medicine, Gyeongsang National University & Hospital, Jinju, Korea
| | - Kyung Eun Jung
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea
| | - Young-Bin Shin
- Department of Dermatology and Institute of Health Sciences, School of Medicine, Gyeongsang National University & Hospital, Jinju, Korea
| | - Chang-Deok Kim
- Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea.,Department of Medical Science, School of Medicine, Chungnam National University, Daejeon, Korea
| | - Tae-Jin Yoon
- Department of Dermatology and Institute of Health Sciences, School of Medicine, Gyeongsang National University & Hospital, Jinju, Korea
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Ma X, Wu D, Zhang X, Shao X, Hu G. microRNA-214 Prevents Traits of Cutaneous Squamous Cell Carcinoma via VEGFA and Bcl-2. Technol Cancer Res Treat 2020; 19:1533033820980098. [PMID: 33280526 PMCID: PMC7724270 DOI: 10.1177/1533033820980098] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 09/08/2020] [Accepted: 11/02/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Dysregulation of microRNA-214 (miR-214) has been indicated in different tumors. The function of miR-214 in cutaneous squamous cell carcinoma (CSCC) is yet to be deciphered. The current study aimed to investigate the specific mechanism underpinning CSCC development with the involvement of miR-214 and its putative targets. METHODS Microarray analysis of CSCC and adjacent tissues was carried out to filter the most significant downregulated miRNA. Survival analysis of patients was subsequently implemented, followed by miRNA expression determination in CSCC cells. Gain-of-function assays were performed to evaluate its function on cellular level. The targets of the determined miRNA were predicted and their expression in CSCC and adjacent tissues was evaluated. The targeting relationship was analyzed by dual-luciferase assays. Finally, rescue experiments were conducted. RESULTS miR-214 was reduced in CSCC tissues and cells, and the survival of patients harboring overexpression of miR-214 was higher. miR-214 restoration increased CSCC cell apoptosis, while decreased proliferative, invasive and migratory activities. miR-214 interacted with vascular endothelial growth factor A (VEGFA) and B-cell CLL/lymphoma 2 (Bcl-2). VEGFA and Bcl-2, overexpressed in CSCC tissues and cells, were negatively correlated with miR-214. Moreover, VEGFA and Bcl-2 overexpression reversed the anti-tumor phenotypes of miR-214 on CSCC cells. miR-214 disrupted the Wnt/β-catenin pathway through VEGFA and Bcl-2 in the CSCC cells. CONCLUSION Our data demonstrates that miR-214 exerts a suppressing role in CSCC. The discovery of novel targets such as miR-214 and VEGFA/Bcl-2 may facilitate the development of therapeutic options.
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Affiliation(s)
- Xianpeng Ma
- Department of Dermatology and STD, Affiliated Hospital of Beihua
University, Jilin, People’s Republic of China
| | - Di Wu
- Department of Dermatology, Jilin City Central Hospital, Jilin,
People’s Republic of China
| | - Xiaodong Zhang
- Department of Dermatology and STD, Affiliated Hospital of Beihua
University, Jilin, People’s Republic of China
| | - Xiao Shao
- College of Biological and Pharmaceutical Engineering, Jilin
Agricultural Science and Technology University, Jilin, People’s Republic of
China
| | - Guangyao Hu
- Department of Stomatology, Affiliated Hospital of Beihua University,
Jilin, People’s Republic of China
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Interplay Between SOX9, Wnt/β-Catenin and Androgen Receptor Signaling in Castration-Resistant Prostate Cancer. Int J Mol Sci 2019; 20:ijms20092066. [PMID: 31027362 PMCID: PMC6540097 DOI: 10.3390/ijms20092066] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 04/23/2019] [Accepted: 04/24/2019] [Indexed: 12/21/2022] Open
Abstract
Androgen receptor (AR) signaling plays a key role not only in the initiation of prostate cancer (PCa) but also in its transition to aggressive and invasive castration-resistant prostate cancer (CRPC). However, the crosstalk of AR with other signaling pathways contributes significantly to the emergence and growth of CRPC. Wnt/β-catenin signaling facilitates ductal morphogenesis in fetal prostate and its anomalous expression has been linked with PCa. β-catenin has also been reported to form complex with AR and thus augment AR signaling in PCa. The transcription factor SOX9 has been shown to be the driving force of aggressive and invasive PCa cells and regulate AR expression in PCa cells. Furthermore, SOX9 has also been shown to propel PCa by the reactivation of Wnt/β-catenin signaling. In this review, we discuss the critical role of SOX9/AR/Wnt/β-catenin signaling axis in the development and progression of CRPC. The phytochemicals like sulforaphane and curcumin that can concurrently target SOX9, AR and Wnt/β-catenin signaling pathways in PCa may thus be beneficial in the chemoprevention of PCa.
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The role of SOX family members in solid tumours and metastasis. Semin Cancer Biol 2019; 67:122-153. [PMID: 30914279 DOI: 10.1016/j.semcancer.2019.03.004] [Citation(s) in RCA: 218] [Impact Index Per Article: 43.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 03/07/2019] [Accepted: 03/21/2019] [Indexed: 02/07/2023]
Abstract
Cancer is a heavy burden for humans across the world with high morbidity and mortality. Transcription factors including sex determining region Y (SRY)-related high-mobility group (HMG) box (SOX) proteins are thought to be involved in the regulation of specific biological processes. The deregulation of gene expression programs can lead to cancer development. Here, we review the role of the SOX family in breast cancer, prostate cancer, renal cell carcinoma, thyroid cancer, brain tumours, gastrointestinal and lung tumours as well as the entailing therapeutic implications. The SOX family consists of more than 20 members that mediate DNA binding by the HMG domain and have regulatory functions in development, cell-fate decision, and differentiation. SOX2, SOX4, SOX5, SOX8, SOX9, and SOX18 are up-regulated in different cancer types and have been found to be associated with poor prognosis, while the up-regulation of SOX11 and SOX30 appears to be favourable for the outcome in other cancer types. SOX2, SOX4, SOX5 and other SOX members are involved in tumorigenesis, e.g. SOX2 is markedly up-regulated in chemotherapy resistant cells. The SoxF family (SOX7, SOX17, SOX18) plays an important role in angio- and lymphangiogenesis, with SOX18 seemingly being an attractive target for anti-angiogenic therapy and the treatment of metastatic disease in cancer. In summary, SOX transcription factors play an important role in cancer progression, including tumorigenesis, changes in the tumour microenvironment, and metastasis. Certain SOX proteins are potential molecular markers for cancer prognosis and putative potential therapeutic targets, but further investigations are required to understand their physiological functions.
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RNAi-mediated TCF-3 gene silencing inhibits proliferation of Eca-109 esophageal cancer cells by inducing apoptosis. Biosci Rep 2017; 37:BSR20170799. [PMID: 28864779 PMCID: PMC5678029 DOI: 10.1042/bsr20170799] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Revised: 08/24/2017] [Accepted: 08/30/2017] [Indexed: 01/24/2023] Open
Abstract
Esophageal cancer (EC) remains an important health problem in China. In the present study, through the use of siRNA, specific gene knockdown of transcription factor 3 gene (TCF-3) was achieved in vitro and the effect of TCF-3 gene on human EC Eca-109 cell proliferation and apoptosis. Eca-109 cells were treated using negative control (NC) of siRNA against TCF-3 (siTCF-3) and siTCF-3 group. Colony formation assay was used to detect the colony formation ability in Eca-109 cells. MTT assay was used to measure the cell growth and viability, whereas BrDU assay was used to evaluate cell proliferation, and flow cytometry (FCM) to assess cell apoptosis. Reverse-transcription quantitative PCR (RT-qPCR) was applied to measure TCF-3 gene expression. Protein expressions of TCF-3, apoptosis-related proteins, Bcl-2, Bax, and caspase-3 were determined using Western blotting. Transfection of siTCF-3 successfully down-regulated TCF-3 gene expression. In addition, siTCF-3, reduced Eca-109 cell viability and proliferation, in a time-dependent manner, and inhibited progression of cell cycle from G0/G1 to S-stage. When treated with siTCF-3, the Eca-109 cells exhibited increased apoptosis, with up-regulated cleaved caspase and Bax expressions, whereas Bcl-2 expression was down-regulated. The present study shows that TCF-3 gene silencing inhibits Eca-109 cell growth and proliferation, suppresses cell cycle progression, and promotes apoptosis, which might serve as a new objective for EC treatment.
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Upregulated SOX9 expression indicates worse prognosis in solid tumors: a systematic review and meta-analysis. Oncotarget 2017; 8:113163-113173. [PMID: 29348895 PMCID: PMC5762580 DOI: 10.18632/oncotarget.22635] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 10/05/2017] [Indexed: 12/25/2022] Open
Abstract
It was recently reported that increased SOX9 expression drives tumor growth and promotes cancer invasion during human tumorigenicity and metastasis. However, the prognostic value of SOX9 for the survival of patients with solid tumors remains controversial. The present meta-analysis was thus performed to highlight the link between dysregulated SOX9 expression and prognosis in cancer patients. A systematic literature search was conducted using the electronic databases PubMed, Web of Science and Embase to identify eligible studies. A random-effects meta-analytical model was employed to correlate SOX9 expression with overall survival (OS), disease-free survival (DFS) and clinicopathological features. In total, 17 studies with 3307 patients were eligible for the final analysis. Combined hazard ratios (HRs) and 95% confidence intervals (CIs) suggested that high SOX9 expression has an unfavourable impact on OS (HR = 1.66, 95% CI 1.36-2.02, P < 0.001) and DFS (HR = 3.54, 95% CI 2.29-5.47, P = 0.008) in multivariate analysis. Additionally, the pooled odds ratios (ORs) indicated that SOX9 over-expression is associated with large tumor size, lymph node metastasis, distant metastasis and a higher clinical stage. Overall, these results indicated that SOX9 over-expression in patients with solid tumors might be related to poor prognosis and could serve as a potential predictive marker of poor clinicopathological prognosis factor.
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14
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Zhang D, Fu M, Li L, Ye H, Song Z, Piao Y. PKC-δ attenuates the cancer stem cell among squamous cell carcinoma cells through down-regulating p63. Pathol Res Pract 2017; 213:1119-1124. [PMID: 28756980 DOI: 10.1016/j.prp.2017.07.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 06/15/2017] [Accepted: 07/12/2017] [Indexed: 12/20/2022]
Abstract
Protein kinase C delta (PKC-δ) has been identified as a tumor suppressor. However, the effects of PKC-δ on the cancer stem cells in squamous cell carcinomas (SCC) have not been clarified. The purpose of this study was to detect the regulation of PKC-δ on cancer stem cell among SSC cells and the role of p63 during the regulation. Immunohistochemistry of human cutaneous SCC tissues was performed to detect the expression of PKC-δ. After the human SCC13 cells infected by recombinant adenoviruses, the cell proliferation were determined. The correlation of PKC-δ and p63 was detected by western blot. The colony forming activity and the number of cancer stem cells (CSCs) in SCC identified by double-staining with anti-integrin α6 and anti-CD71 antibodies were detected. The expression of PKC-δ was obviously decreased in SCC tissues compared with that in normal skin tissues. The higher protein level of p63 in SCC was attenuated by the transfection of PKC-δ. The higher proliferation capacity of SCC13 cells, the higher activity and expression of CSCs in SCC13 cells induced by p63 were significantly suppressed by the transfection of PKC-δ. In conclusion, PKC-δ played as a protective role in SCC partly by down-regulating p63, leading to the suppression of SCC cell proliferation, attenuation of the activity and expression of CSCs in SCC cells.
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Affiliation(s)
- Dongmei Zhang
- Department of Physiology, Dalian Medical University, Dalian, China
| | - Mingjing Fu
- Department of Dermatology, The First Affiliated Hospital of Dalian Medical University, China
| | - Lingyan Li
- Department of Dermatology, The First Affiliated Hospital of Dalian Medical University, China
| | - Huan Ye
- Department of Dermatology, The First Affiliated Hospital of Dalian Medical University, China
| | - Zhiqi Song
- Department of Dermatology, The First Affiliated Hospital of Dalian Medical University, China
| | - Yongjun Piao
- Department of Dermatology, The First Affiliated Hospital of Dalian Medical University, China.
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