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Wang L, Chen QG, Lu H. Jianpi Qinghua Formula Alleviates Diabetic Myocardial Injury Through Inhibiting JunB/c-Fos Expression. Curr Med Sci 2024; 44:144-155. [PMID: 38393526 DOI: 10.1007/s11596-024-2830-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 11/10/2023] [Indexed: 02/25/2024]
Abstract
OBJECTIVE Diabetic cardiomyopathy (DCM) represents a substantial risk factor for heart failure and increased mortality in individuals afflicted with diabetes mellitus (DM). DCM typically manifests as myocardial fibrosis, myocardial hypertrophy, and impaired left ventricular diastolic function. While the clinical utility of the Jianpi Qinghua (JPQH) formula has been established in treating diabetes and insulin resistance, its potential efficacy in alleviating diabetic cardiomyopathy remains uncertain. This study aims to investigate the impact and underlying molecular mechanisms of the JPQH formula (JPQHF) in ameliorating myocardial injury in nonobese diabetic rats, specifically focusing on apoptosis and inflammation. METHODS Wistar rats were assigned as the normal control group (CON), while Goto-Kakizaki (GK) rats were randomly divided into three groups: DM, DM treated with the JPQHF, and DM treated with metformin (MET). Following a 4-week treatment regimen, various biochemical markers related to glucose metabolism, cardiac function, cardiac morphology, and myocardial ultrastructure in GK rats were assessed. RNA sequencing was utilized to analyze differential gene expression and identify potential therapeutic targets. In vitro experiments involved high glucose to induce apoptosis and inflammation in H9c2 cells. Cell viability was evaluated using CCK-8 assay, apoptosis was monitored via flow cytometry, and the production of inflammatory cytokines was measured using quantitative real-time PCR (qPCR) and ELISA. Protein expression levels were determined by Western blotting analysis. The investigation also incorporated the use of MAPK inhibitors to further elucidate the mechanism at both the transcriptional and protein levels. RESULTS The JPQHF group exhibited significant reductions in interventricular septal thickness at end-systole (IVSs) and left ventricular internal diameter at end-systole and end-diastole (LVIDs and LVIDd). JPQHF effectively suppressed high glucose-induced activation of IL-1β and caspase 3 in cardiomyocytes. Furthermore, JPQHF downregulated the expression of myocardial JunB/c-Fos, which was upregulated in both diabetic rats and high glucose-treated H9c2 cells. CONCLUSION The JPQH formula holds promise in mitigating diabetic myocardial apoptosis and inflammation in cardiomyocytes by inhibiting JunB/c-Fos expression through suppressing the MAPK (p38 and ERK1/2) pathway.
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Affiliation(s)
- Lin Wang
- Department of Endocrinology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
- Department of Traditional Chinese Medicine, Naval Medical University, Shanghai, 200433, China.
| | - Qing-Guang Chen
- Department of Endocrinology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Hao Lu
- Department of Endocrinology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
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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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Houschyar KS, Borrelli MR, Rein S, Tapking C, Popp D, Palackic A, Puladi B, Ooms M, Houschyar M, Branski LK, Schmitt L, Modabber A, Rübben A, Hölzle F, Yazdi AS. Head and neck squamous cell carcinoma: a potential therapeutic target for the Wnt signaling pathway. EUROPEAN JOURNAL OF PLASTIC SURGERY 2022. [DOI: 10.1007/s00238-022-01958-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Abstract
Squamous cell carcinoma (SCC) of the head and neck region accounts for 3% of all tumors worldwide. The incidence is higher in men, with most carcinomas found in the oral cavity. At the point of initial diagnosis, distant metastases are rare. The Wnt signaling pathway is critically involved in cell development and stemness and has been associated with SCC. Understanding precisely how Wnt signaling regulates SCC progression and how it can, therefore, be modulated for the therapeutic benefit has enormous potential in the treatment of head and neck SCC. In this review, we will describe the underlying mechanisms of Wnt signaling and outline how Wnt signaling controls cellular processes both in homeostasis and in the development and progression of SCC.Level of evidence: Not gradable.
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Zhang X, Li LX, Yu C, Nath KA, Zhuang S, Li X. Targeting lysine-specific demethylase 1A inhibits renal epithelial-mesenchymal transition and attenuates renal fibrosis. FASEB J 2021; 36:e22122. [PMID: 34958158 DOI: 10.1096/fj.202101566r] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/30/2021] [Accepted: 12/13/2021] [Indexed: 11/11/2022]
Abstract
Lysine-specific histone demethylase 1 (LSD1) as the first identified histone/lysine demethylase regulates gene expression and protein functions in diverse diseases. In this study, we show that the expression of LSD1 is increased in mouse kidneys with unilateral ureteral obstruction (UUO) and in cultured NRK-52E cells undergoing TGF-β1-induced epithelial-mesenchymal transition (EMT). Inhibition of LSD1 with its specific inhibitor ORY1001 attenuated renal EMT and fibrosis, which was associated with decreased the deposition of extracellular matrix proteins and the expression of fibrotic markers, including α-smooth muscle actin (α-SMA) and fibronectin, and the recovery of E-cadherin expression and decrease of N-cadherin expression in UUO kidneys and in NRK-52E cells induced with TGF-β1. Targeting LSD1 also decreased the expression of Snail family transcriptional repressor 1 (Snail-1) and its interaction with LSD1 in UUO kidneys and in NRK-52E cells treated with TGF-β1. In addition, we identified a novel LSD1-14-3-3ζ-PKCα axis in the regulation of the activation of AKT and Stat3 and then the activation of fibroblasts. This study suggests that LSD1 plays a critical role in regulation of renal EMT and fibrosis through activation of diverse signaling pathways and places an emphasis that LSD1 has potential as a therapeutic target for the treatment of renal fibrosis.
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Affiliation(s)
- Xiaoqin Zhang
- Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Department of Nephrology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Linda Xiaoyan Li
- Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota, USA
| | - Chen Yu
- Department of Nephrology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Karl A Nath
- Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Shougang Zhuang
- Department of Medicine, Rhode Island Hospital, Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Xiaogang Li
- Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota, USA
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5
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Tang Y, Zhang W, Sheng T, He X, Xiong X. Overview of the molecular mechanisms contributing to the formation of cancer‑associated adipocytes (Review). Mol Med Rep 2021; 24:768. [PMID: 34490479 PMCID: PMC8430316 DOI: 10.3892/mmr.2021.12408] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 08/24/2021] [Indexed: 12/30/2022] Open
Abstract
Adipocytes are the main stromal cells in the tumor microenvironment. In addition to serving as energy stores for triglycerides, adipocytes may function as an active endocrine organ. The crosstalk between adipocytes and cancer cells was shown to promote the migration, invasion and proliferation of cancer cells and to cause phenotypic and functional changes in adipocytes. Tumor-derived soluble factors, such as TNF-α, plasminogen activator inhibitor 1, Wnt3a, IL-6, and exosomal microRNAs (miRNA/miRs), including miR-144, miR-126, miR-155, as well as other miRNAs, have been shown to act on adipocytes at the tumor invasion front, resulting in the formation of cancer-associated adipocytes (CAAs) with diminished reduced terminal differentiation markers and a dedifferentiated phenotype. In addition, the number and size of CAA lipid droplets have been found to be significantly reduced compared with those of mature adipocytes, whereas inflammatory cytokines and proteases are overexpressed. The aim of the present review was to summarize the latest findings on the biological changes of CAAs and the potential role of tumor-adipocyte crosstalk in the formation of CAAs, in the hope of providing novel perspectives for breast cancer treatment.
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Affiliation(s)
- Yunpeng Tang
- Second Clinical Medical School, School of Basic Medical Sciences, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Wenkai Zhang
- Second Clinical Medical School, School of Basic Medical Sciences, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Tianqiang Sheng
- Second Clinical Medical School, School of Basic Medical Sciences, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Xi He
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Xiangyang Xiong
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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Zheng Y, Chi S, Li C. Identification of potential gene drivers of cutaneous squamous cell carcinoma: Analysis of microarray data. Medicine (Baltimore) 2020; 99:e22257. [PMID: 32991423 PMCID: PMC7523824 DOI: 10.1097/md.0000000000022257] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Cutaneous squamous cell carcinoma (cSCC) is a common skin cancer with an increasing incidence. As a pre-cancerous condition, actinic keratosis (AK) has an up to 20% risk of progression to cSCC. This study aims to define the potential genes that associated with genesis and progression of cSCC, thereby further identify critical biomarkers for the prevention, early diagnosis, and effective treatment of cSCC.Two datasets GSE42677 and GSE45216 were downloaded from the GEO. Microarray data analysis was applied to explore the differentially expressed genes (DEGs) between cSCC samples and AK samples. Then functional enrichment analysis, protein-protein interaction (PPI) network, and drug-gene interaction analysis were performed to screen key genes.A total of 711 DEGs, including 238 upregulated genes and 473 downregulated genes, were screened out. DEGs mainly involved in pathways as extracellular matrix (ECM)-receptor interaction, hematopoietic cell lineage, phosphatidylinositol 3-kinase (PI3K-Akt) signaling pathway, and focal adhesion. Candidate genes, including upregulated genes as JUN, filamin A (FLNA), casein kinase 1 delta (CSNK1D), and histone cluster 1 H3 family member f (HIST1H3F), and downregulated genes as androgen receptor (AR), heat shock protein family H member 1 (HSPH1), tropomyosin 1 (TPM1), pyruvate kinase, muscle (PKM), LIM domain and actin binding 1 (LIMA1), and synaptopodin (SYNPO) were screened out. In drug-gene interaction analysis, 13 genes and 44 drugs were identified.This study demonstrates that genes JUN, FLNA, AR, HSPH1, and CSNK1D have the potential to function as targets for diagnosis and treatment of cSCC.
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Affiliation(s)
- Yi Zheng
- Department of Dermatology, The First Medical Center of Chinese PLA General Hospital, Beijing
| | - Sumin Chi
- Department of Physiology, Air Force Medical University of PLA, Xi’an, China
| | - Chengxin Li
- Department of Dermatology, The First Medical Center of Chinese PLA General Hospital, Beijing
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Zhang H, Yang X, Hu F, Li C, Xu J, Nie W, Shen Y, Lou Y, Han B, Zhong H, Zhang X. <p>Expression Level of Wnt5a Was Related to the Therapeutic Effects of First-Generation EGFR-TKIs</p>. Onco Targets Ther 2020; 13:5387-5394. [PMID: 32606756 PMCID: PMC7295535 DOI: 10.2147/ott.s250024] [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: 02/16/2020] [Accepted: 05/26/2020] [Indexed: 12/24/2022] Open
Abstract
Background and Objective Methods Results Conclusion
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Affiliation(s)
- Hai Zhang
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai200030, People’s Republic of China
| | - Xiaohua Yang
- Central Laboratory, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai200030, People’s Republic of China
| | - Fang Hu
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai200030, People’s Republic of China
| | - Changhui Li
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai200030, People’s Republic of China
| | - Jianlin Xu
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai200030, People’s Republic of China
| | - Wei Nie
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai200030, People’s Republic of China
| | - Yinchen Shen
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai200030, People’s Republic of China
| | - Yuqing Lou
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai200030, People’s Republic of China
| | - Baohui Han
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai200030, People’s Republic of China
| | - Hua Zhong
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai200030, People’s Republic of China
| | - Xueyan Zhang
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai200030, People’s Republic of China
- Correspondence: Xueyan Zhang; Hua Zhong Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai200030, People’s Republic of ChinaTel +86 18017321319; +86 13818200560Fax +86-021-62821990 Email ;
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8
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Lang CMR, Chan CK, Veltri A, Lien WH. Wnt Signaling Pathways in Keratinocyte Carcinomas. Cancers (Basel) 2019; 11:cancers11091216. [PMID: 31438551 PMCID: PMC6769728 DOI: 10.3390/cancers11091216] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 08/17/2019] [Accepted: 08/19/2019] [Indexed: 12/12/2022] Open
Abstract
The skin functions as a barrier between the organism and the surrounding environment. Direct exposure to external stimuli and the accumulation of genetic mutations may lead to abnormal cell growth, irreversible tissue damage and potentially favor skin malignancy. Skin homeostasis is coordinated by an intricate signaling network, and its dysregulation has been implicated in the development of skin cancers. Wnt signaling is one such regulatory pathway orchestrating skin development, homeostasis, and stem cell activation. Aberrant regulation of Wnt signaling cascades not only gives rise to tumor initiation, progression and invasion, but also maintains cancer stem cells which contribute to tumor recurrence. In this review, we summarize recent studies highlighting functional evidence of Wnt-related oncology in keratinocyte carcinomas, as well as discussing preclinical and clinical approaches that target oncogenic Wnt signaling to treat cancers. Our review provides valuable insight into the significance of Wnt signaling for future interventions against keratinocyte carcinomas.
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Affiliation(s)
| | - Chim Kei Chan
- de Duve Institute, Université catholique de Louvain, Brussels 1200, Belgium
| | - Anthony Veltri
- de Duve Institute, Université catholique de Louvain, Brussels 1200, Belgium
| | - Wen-Hui Lien
- de Duve Institute, Université catholique de Louvain, Brussels 1200, Belgium.
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9
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Ibrahim SAEF, Abudu A, Johnson E, Aftab N, Conrad S, Fluck M. The role of AP-1 in self-sufficient proliferation and migration of cancer cells and its potential impact on an autocrine/paracrine loop. Oncotarget 2018; 9:34259-34278. [PMID: 30344941 PMCID: PMC6188139 DOI: 10.18632/oncotarget.26047] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 08/13/2018] [Indexed: 12/11/2022] Open
Abstract
Activating protein-1 (AP-1) family members, especially Fra-1 and c-Jun, are highly expressed in invasive cancers and can mediate enhanced migration and proliferation. The aim of this study was to explore the significance of elevated levels of AP-1 family members under conditions that restrict growth. We observed that invasive MDA-MB-231 cells express high levels of Fra-1, c-Jun, and Jun-D during serum starvation and throughout the cell cycle compared to non-tumorigenic and non-invasive cell lines. We then analyzed Fra-1 levels in additional breast and other cancer cell lines. We found breast and lung cancer cells with higher levels of Fra-1 during serum starvation had relatively higher ability to proliferate and migrate under these conditions. Utilizing a dominant negative construct of AP-1, we demonstrated that proliferation and migration of MDA-MB-231 in the absence of serum requires AP-1 activity. Finally, we observed that MDA-MB-231 cells secrete factors(s) that induce Fra-1 expression and migration in non-tumorigenic and non-metastatic cells and that both the expression of and response to these factors require AP-1 activity. These results suggest the presence of an autocrine/paracrine loop that maintains high Fra-1 levels in aggressive cancer cells, enhancing their proliferative and metastatic ability and affecting neighbors to alter the tumor environment.
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Affiliation(s)
- Sherif Abd El-Fattah Ibrahim
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, USA.,Department of Histology and Cell Biology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Aierken Abudu
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, USA
| | - Eugenia Johnson
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, USA
| | - Neelum Aftab
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, USA
| | - Susan Conrad
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, USA
| | - Michele Fluck
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, USA
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Zoico E, Darra E, Rizzatti V, Budui S, Franceschetti G, Mazzali G, Rossi AP, Fantin F, Menegazzi M, Cinti S, Zamboni M. Adipocytes WNT5a mediated dedifferentiation: a possible target in pancreatic cancer microenvironment. Oncotarget 2018; 7:20223-35. [PMID: 26958939 PMCID: PMC4991449 DOI: 10.18632/oncotarget.7936] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2015] [Accepted: 02/06/2016] [Indexed: 12/14/2022] Open
Abstract
A significant epidemiological association between obesity and pancreatic ductal adenocarcinoma (PDAC) has previously been described, as well as a correlation between the degree of pancreatic steatosis, PDAC risk and prognosis. The underlying mechanisms are still not completely known. After co-culture of 3T3-L1 adipocytes and MiaPaCa2 with an in vitro transwell system we observed the appearance of fibroblast-like cells, along with a decrease in number and size of remaining adipocytes. RT-PCR analyses of 3T3-L1 adipocytes in co-culture showed a decrease in gene expression of typical markers of mature adipocytes, in parallel with an increased expression of fibroblast-specific and reprogramming genes. We found an increased WNT5a gene and protein expression early in MiaPaCa2 cells in co-culture. Additionally, EMSA of c-Jun and AP1 in 3T3-L1 demonstrated an increased activation in adipocytes after co-culture. Treatment with WNT5a neutralizing antibody completely reverted the activation of c-Jun and AP1 observed in co-cultured adipocytes. Increasing doses of recombinant SFRP-5, a competitive inhibitor for WNT5a receptor, added to the co-culture medium, were able to block the dedifferentiation of adipocytes in co-culture. These data support a WNT5a-mediated dedifferentiation process with adipocytes reprogramming toward fibroblast-like cells that might profoundly influence cancer microenvironment.
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Affiliation(s)
- Elena Zoico
- Department of Medicine, Geriatrics Section, University of Verona, Verona, Italy
| | - Elena Darra
- Department of Medicine, Geriatrics Section, University of Verona, Verona, Italy
| | - Vanni Rizzatti
- Department of Medicine, Geriatrics Section, University of Verona, Verona, Italy
| | - Simona Budui
- Department of Medicine, Geriatrics Section, University of Verona, Verona, Italy
| | - Guido Franceschetti
- Department of Medicine, Geriatrics Section, University of Verona, Verona, Italy
| | - Gloria Mazzali
- Department of Medicine, Geriatrics Section, University of Verona, Verona, Italy
| | - Andrea P Rossi
- Department of Medicine, Geriatrics Section, University of Verona, Verona, Italy
| | - Francesco Fantin
- Department of Medicine, Geriatrics Section, University of Verona, Verona, Italy
| | - Marta Menegazzi
- Department of Life and Reproduction Sciences, Biochemistry Section, University of Verona, Verona, Italy
| | - Saverio Cinti
- Department of Experimental and Clinical Medicine, Center of Obesity-University of Ancona (Politecnica delle Marche), Ancona, Italy
| | - Mauro Zamboni
- Department of Medicine, Geriatrics Section, University of Verona, Verona, Italy
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Chistiakov DA, Chekhonin IV, Chekhonin VP. The EGFR variant III mutant as a target for immunotherapy of glioblastoma multiforme. Eur J Pharmacol 2017; 810:70-82. [DOI: 10.1016/j.ejphar.2017.05.064] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 05/15/2017] [Accepted: 05/31/2017] [Indexed: 12/26/2022]
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12
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Wnt5a Increases Properties of Lung Cancer Stem Cells and Resistance to Cisplatin through Activation of Wnt5a/PKC Signaling Pathway. Stem Cells Int 2016; 2016:1690896. [PMID: 27895670 PMCID: PMC5118537 DOI: 10.1155/2016/1690896] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Revised: 08/31/2016] [Accepted: 09/22/2016] [Indexed: 02/07/2023] Open
Abstract
The development of chemoresistance to cisplatin regimens causes a poor prognosis in patients with advanced NSCLC. The role of noncanonical Wnt signaling in the regulation of properties of lung cancer stem cells and chemoresistance was interrogated, by accessing capacities of cell proliferation, migration, invasion, and clonogenicity as well as the apoptosis in A549 cell lines and cisplatin-resistant A549 cells treated with Wnt5a conditional medium or protein kinase C (PKC) inhibitor GF109203X. Results showed that the noncanonical Wnt signaling ligand, Wnt5a, could promote the proliferation, migration, invasion, and colony formation in A549 lung adenocarcinoma cells and cisplatin-resistant A549/DDP cells and increase the fraction of ALDH-positive cell in A549/DDP cells. An exposure of cells to Wnt5a led to a significant reduction of A549/DDP cell apoptosis but not A549 cells. An addition of GF109203X could both strikingly increase the baseline apoptosis and resensitize the Wnt5a-inhibited cell apoptosis. Interestingly, an inhibition of Wnt/PKC signaling pathway could reduce properties of lung cancer stem cells, promote cell apoptosis, and resensitize cisplatin-resistant cells to cisplatin via a caspase/AIF-dependent pathway. These data thus suggested that the Wnt5a could promote lung cancer cell mobility and cisplatin-resistance through a Wnt/PKC signaling pathway and a blockage of this signaling may be an alternative therapeutic strategy for NSCLC patients with resistance to chemotherapies.
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13
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Gao SS, Yang XH, Wang M. Inhibitory effects of B-cell translocation gene 2 on skin cancer cells via the Wnt/β-catenin signaling pathway. Mol Med Rep 2016; 14:3464-8. [DOI: 10.3892/mmr.2016.5596] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 06/06/2016] [Indexed: 11/05/2022] Open
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14
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Ramsdale R, Jorissen RN, Li FZ, Al-Obaidi S, Ward T, Sheppard KE, Bukczynska PE, Young RJ, Boyle SE, Shackleton M, Bollag G, Long GV, Tulchinsky E, Rizos H, Pearson RB, McArthur GA, Dhillon AS, Ferrao PT. The transcription cofactor c-JUN mediates phenotype switching and BRAF inhibitor resistance in melanoma. Sci Signal 2015; 8:ra82. [PMID: 26286024 DOI: 10.1126/scisignal.aab1111] [Citation(s) in RCA: 99] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Most patients with BRAF-mutant metastatic melanoma display remarkable but incomplete and short-lived responses to inhibitors of the BRAF kinase or the mitogen-activated protein kinase kinase (MEK), collectively BRAF/MEK inhibitors. We found that inherent resistance to these agents in BRAF(V600)-mutant melanoma cell lines was associated with high abundance of c-JUN and characteristics of a mesenchymal-like phenotype. Early drug adaptation in drug-sensitive cell lines grown in culture or as xenografts, and in patient samples during therapy, was consistently characterized by down-regulation of SPROUTY4 (a negative feedback regulator of receptor tyrosine kinases and the BRAF-MEK signaling pathway), increased expression of JUN and reduced expression of LEF1. This coincided with a switch in phenotype that resembled an epithelial-mesenchymal transition (EMT). In cultured cells, these BRAF inhibitor-induced changes were reversed upon removal of the drug. Knockdown of SPROUTY4 was sufficient to increase the abundance of c-JUN in the absence of drug treatment. Overexpressing c-JUN in drug-naïve melanoma cells induced similar EMT-like phenotypic changes to BRAF inhibitor treatment, whereas knocking down JUN abrogated the BRAF inhibitor-induced early adaptive changes associated with resistance and enhanced cell death. Combining the BRAF inhibitor with an inhibitor of c-JUN amino-terminal kinase (JNK) reduced c-JUN phosphorylation, decreased cell migration, and increased cell death in melanoma cells. Gene expression data from a panel of melanoma cell lines and a patient cohort showed that JUN expression correlated with a mesenchymal gene signature, implicating c-JUN as a key mediator of the mesenchymal-like phenotype associated with drug resistance.
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Affiliation(s)
- Rachel Ramsdale
- Molecular Oncology Laboratory, Peter MacCallum Cancer Centre, St. Andrew's Place, East Melbourne, Victoria 3002, Australia. Oncogenic Signalling and Growth Control Program, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia
| | - Robert N Jorissen
- Systems Biology and Personalised Medicine Division, Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, Melbourne, Victoria 3052, Australia. Department of Medical Biology, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Victoria 3010, Australia
| | - Frederic Z Li
- Molecular Oncology Laboratory, Peter MacCallum Cancer Centre, St. Andrew's Place, East Melbourne, Victoria 3002, Australia. Oncogenic Signalling and Growth Control Program, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia. Sir Peter MacCallum Department of Oncology, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Victoria 3010, Australia
| | - Sheren Al-Obaidi
- Molecular Oncology Laboratory, Peter MacCallum Cancer Centre, St. Andrew's Place, East Melbourne, Victoria 3002, Australia. Oncogenic Signalling and Growth Control Program, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia
| | - Teresa Ward
- Molecular Oncology Laboratory, Peter MacCallum Cancer Centre, St. Andrew's Place, East Melbourne, Victoria 3002, Australia. Oncogenic Signalling and Growth Control Program, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia
| | - Karen E Sheppard
- Molecular Oncology Laboratory, Peter MacCallum Cancer Centre, St. Andrew's Place, East Melbourne, Victoria 3002, Australia. Oncogenic Signalling and Growth Control Program, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia. Department of Biochemistry and Molecular Biology, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Victoria 3010, Australia
| | - Patricia E Bukczynska
- Molecular Therapeutics and Biomarkers Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia. Cancer Therapeutics Program, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia
| | - Richard J Young
- Molecular Therapeutics and Biomarkers Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia. Cancer Therapeutics Program, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia
| | - Samantha E Boyle
- Cancer Therapeutics Program, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia. Cancer Development and Treatment Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia. Department of Pathology, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Victoria 3010, Australia
| | - Mark Shackleton
- Sir Peter MacCallum Department of Oncology, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Victoria 3010, Australia. Cancer Therapeutics Program, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia. Cancer Development and Treatment Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia. Department of Pathology, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Victoria 3010, Australia
| | - Gideon Bollag
- Plexxikon Inc., 91 Bolivar Drive, Berkeley, CA 94710, USA
| | - Georgina V Long
- Melanoma Institute Australia, Sydney, New South Wales 2060, Australia. University of Sydney, Sydney, New South Wales 2006, Australia
| | - Eugene Tulchinsky
- Department of Cancer Studies and Molecular Medicine, University of Leicester, Leicester LE2 7LX, UK
| | - Helen Rizos
- Melanoma Institute Australia, Sydney, New South Wales 2060, Australia. Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Richard B Pearson
- Oncogenic Signalling and Growth Control Program, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia. Sir Peter MacCallum Department of Oncology, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Victoria 3010, Australia. Department of Biochemistry and Molecular Biology, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Victoria 3010, Australia. Cancer Signalling Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia
| | - Grant A McArthur
- Molecular Oncology Laboratory, Peter MacCallum Cancer Centre, St. Andrew's Place, East Melbourne, Victoria 3002, Australia. Oncogenic Signalling and Growth Control Program, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia. Sir Peter MacCallum Department of Oncology, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Victoria 3010, Australia. Cancer Therapeutics Program, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia
| | - Amardeep S Dhillon
- Oncogenic Signalling and Growth Control Program, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia. Sir Peter MacCallum Department of Oncology, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Victoria 3010, Australia. Department of Pathology, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Victoria 3010, Australia
| | - Petranel T Ferrao
- Molecular Oncology Laboratory, Peter MacCallum Cancer Centre, St. Andrew's Place, East Melbourne, Victoria 3002, Australia. Oncogenic Signalling and Growth Control Program, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia. Sir Peter MacCallum Department of Oncology, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Victoria 3010, Australia. Cancer Therapeutics Program, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002, Australia. Department of Pathology, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Victoria 3010, Australia.
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15
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Chen R, Fu M, Zhang G, Zhou Y, Zhu S, Liu J, Wang D, Deng A, Wang Z. Rac1 regulates skin tumors by regulation of keratin 17 through recruitment and interaction with CD11b+Gr1+ cells. Oncotarget 2015; 5:4406-17. [PMID: 24962779 PMCID: PMC4147333 DOI: 10.18632/oncotarget.2030] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Rac1 is a member of the Rho family of small GTPases that control cells proliferation, differentiation, migration, and inflammation. Rac1 is crucial in tumorigenesis and development. Keratin17 and CD11b+Gr1+ cells are considered to regulate skin inflmmation. Here we discuss the regulation of Rac1 on skin tumor formation and its relationship. In samples from human skin squamous cell carcinoma (SCC), Rac1 activity was higher in cancer tissues than in normal skin and activity correlated with keratin 17 overexpression. In a DMBA/TPA-induced mouse skin tumor model, inhibition of Rac1 activity and depletion of CD11b+Gr1+ cells resulted in significant tumor formation. TPA induced recruitment of CD11b+Gr1+ cells into dermis; however, Rac1 inhibitor abolished this recruitment. In vitro, Rac1 induced interferon (IFN) and interlukin (IL6) production in keratinocytes, repression of keratin 17 inhibited IFN and IL6 production induced by Rac1. Moreover, both inhibition of Rac1 activity and repression of keratin 17 restricted proliferation and induction of differentiation in keratinocytes. Coculture of CD11b+Gr1+ cells with keratinocytes activated Wnt pathway in keratinocytes, resulting in enhanced Rac1 activity, overexpression of keratin 17, and hyperproliferation of keratinocytes. Our results suggested that hyperactive Rac1 recruited and interacted with CD11b+Gr1+ cells, inducing keratin 17-regulated inflammation and promoting skin tumor formation.
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Affiliation(s)
- Rongyi Chen
- Department of Dermatology, Affiliated Hospital of Guangdong Medical College, Zhanjiang, 524001, China
| | | | | | | | | | | | | | - Anmei Deng
- Department of Laboratory Diagnostic, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Zhipeng Wang
- Key Laboratory of Gastrointestinal Pharmacology of Chinese Materia Medica of the State Administration of Traditional Chinese Medicine, Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China
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16
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Tissue invasion and metastasis: Molecular, biological and clinical perspectives. Semin Cancer Biol 2015; 35 Suppl:S244-S275. [PMID: 25865774 DOI: 10.1016/j.semcancer.2015.03.008] [Citation(s) in RCA: 335] [Impact Index Per Article: 37.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 03/17/2015] [Accepted: 03/18/2015] [Indexed: 12/12/2022]
Abstract
Cancer is a key health issue across the world, causing substantial patient morbidity and mortality. Patient prognosis is tightly linked with metastatic dissemination of the disease to distant sites, with metastatic diseases accounting for a vast percentage of cancer patient mortality. While advances in this area have been made, the process of cancer metastasis and the factors governing cancer spread and establishment at secondary locations is still poorly understood. The current article summarizes recent progress in this area of research, both in the understanding of the underlying biological processes and in the therapeutic strategies for the management of metastasis. This review lists the disruption of E-cadherin and tight junctions, key signaling pathways, including urokinase type plasminogen activator (uPA), phosphatidylinositol 3-kinase/v-akt murine thymoma viral oncogene (PI3K/AKT), focal adhesion kinase (FAK), β-catenin/zinc finger E-box binding homeobox 1 (ZEB-1) and transforming growth factor beta (TGF-β), together with inactivation of activator protein-1 (AP-1) and suppression of matrix metalloproteinase-9 (MMP-9) activity as key targets and the use of phytochemicals, or natural products, such as those from Agaricus blazei, Albatrellus confluens, Cordyceps militaris, Ganoderma lucidum, Poria cocos and Silybum marianum, together with diet derived fatty acids gamma linolenic acid (GLA) and eicosapentanoic acid (EPA) and inhibitory compounds as useful approaches to target tissue invasion and metastasis as well as other hallmark areas of cancer. Together, these strategies could represent new, inexpensive, low toxicity strategies to aid in the management of cancer metastasis as well as having holistic effects against other cancer hallmarks.
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17
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Quint KD, Genders RE, de Koning MNC, Borgogna C, Gariglio M, Bouwes Bavinck JN, Doorbar J, Feltkamp MC. Human Beta-papillomavirus infection and keratinocyte carcinomas. J Pathol 2015; 235:342-54. [PMID: 25131163 DOI: 10.1002/path.4425] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 08/04/2014] [Accepted: 08/11/2014] [Indexed: 12/15/2022]
Abstract
Although the role of oncogenic human Alpha-papillomaviruses (HPVs) in the development of mucosal carcinomas at different body sites (eg cervix, anus, oropharynx) is fully recognized, a role for HPV in keratinocyte carcinomas (KCs; basal and squamous cell carcinomas) of the skin is not yet clear. KCs are the most common cancers in Caucasians, with the major risk factor being ultraviolet (UV) light exposure. A possible role for Beta-HPV types (BetaPV) in the development of KC was suggested several decades ago, supported by a number of epidemiological studies. Our current review summarizes the recent molecular and histopathological evidence in support of a causal association between BetaPV and the development of KC, and outlines the suspected synergistic effect of viral gene expression with UV radiation and immune suppression. Further insights into the molecular pathways and protein interactions used by BetaPV and the host cell is likely to extend our understanding of the role of BetaPV in KC.
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Affiliation(s)
- Koen D Quint
- Department of Dermatology, Leiden University Medical Centre, The Netherlands; DDL Diagnostic Laboratory, Rijswijk, The Netherlands
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18
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Paul I, Bhattacharya S, Chatterjee A, Ghosh MK. Current Understanding on EGFR and Wnt/β-Catenin Signaling in Glioma and Their Possible Crosstalk. Genes Cancer 2014; 4:427-46. [PMID: 24386505 DOI: 10.1177/1947601913503341] [Citation(s) in RCA: 113] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Accepted: 07/31/2013] [Indexed: 02/06/2023] Open
Abstract
Glioblastoma multiformes (GBMs) are extensively heterogeneous at both cellular and molecular levels. Current therapeutic strategies include targeting of key signaling molecules using pharmacological inhibitors in combination with genotoxic agents such as temozolomide. In spite of all efforts, the prognosis of glioma patients remains dismal. Therefore, a proper understanding of individual molecular pathways responsible for the progression of GBM is necessary. The epidermal growth factor receptor (EGFR) pathway is probably the most significant signaling pathway clinically implicated in glioma. Not surprisingly, anti-EGFR therapies mostly prevail for therapeutic purposes. The Wnt/β-catenin pathway is well implicated in multiple tumors; however, its role in glioma has only recently started to emerge. We give a concise account of the current understanding of the role of both these pathways in glioma. Last, taking evidences from a limited literature, we outline a number of points where these pathways intersect each other and put forward the possibility of combinatorially targeting them for treatment of glioma.
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Affiliation(s)
- Indranil Paul
- Signal Transduction in Cancer and Stem Cells Laboratory, Cancer Biology and Inflammatory Disorder Division, Indian Institute of Chemical Biology, Kolkata, India
| | - Seemana Bhattacharya
- Signal Transduction in Cancer and Stem Cells Laboratory, Cancer Biology and Inflammatory Disorder Division, Indian Institute of Chemical Biology, Kolkata, India
| | - Anirban Chatterjee
- Signal Transduction in Cancer and Stem Cells Laboratory, Cancer Biology and Inflammatory Disorder Division, Indian Institute of Chemical Biology, Kolkata, India
| | - Mrinal K Ghosh
- Signal Transduction in Cancer and Stem Cells Laboratory, Cancer Biology and Inflammatory Disorder Division, Indian Institute of Chemical Biology, Kolkata, India
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19
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Connolly K, Manders P, Earls P, Epstein RJ. Papillomavirus-associated squamous skin cancers following transplant immunosuppression: one Notch closer to control. Cancer Treat Rev 2013; 40:205-14. [PMID: 24051018 DOI: 10.1016/j.ctrv.2013.08.005] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Revised: 07/06/2013] [Accepted: 08/13/2013] [Indexed: 12/12/2022]
Abstract
The frequent occurrence of cutaneous squamous cell carcinomas (SCCs) containing weakly tumorigenic human papillomaviruses (HPVs) following iatrogenic immunosuppression for organ transplantation remains incompletely understood. Here we address this problem in the light of recent insights into (1) the association of low-risk β-HPVs with skin SCCs in the rare genetic syndromes of epidermodysplasia verruciformis and xeroderma pigmentosum, (2) the frequent recovery of post-transplant tumor control on substituting calcineurin-inhibitory with mTOR-inhibitory immunosuppression, (3) the unexpectedly favorable prognosis of node-positive SCCs containing high-risk α-HPVs originating in the activated immune niche of the oropharynx, (4) the rapid occurrence of HPV-negative SCCs in ultraviolet (UV)-damaged skin of melanoma patients receiving Raf-inhibitory drugs, and (5) the selective ability of β-HPV E6 oncoproteins to inhibit Notch tumor-suppressive signaling in cutaneous and mesenchymal tissues. The crosstalk so implied between oncogenic UV-induced mutations, defective host immunity, and β-HPV-dependent stromal-epithelial signaling suggests that immunosuppressants such as calcineurin inhibitors intensify mitogenic signalling in TP53-mutant keratinocytes while also abrogating immune-dependent Notch-mediated tumor repression. This emerging interplay between solar damage, viral homeostasis and immune control makes it timely to reappraise strategies for managing skin SCCs in transplant patients.
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Affiliation(s)
- Kate Connolly
- Department of Oncology, St. Vincent's Hospital, The Kinghorn Cancer Centre, UNSW Clinical School, Sydney, Australia
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20
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AP1 transcription factors in epidermal differentiation and skin cancer. J Skin Cancer 2013; 2013:537028. [PMID: 23762562 PMCID: PMC3676924 DOI: 10.1155/2013/537028] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Accepted: 05/02/2013] [Indexed: 01/17/2023] Open
Abstract
AP1 (jun/fos) transcription factors (c-jun, junB, junD, c-fos, FosB, Fra-1, and Fra-2) are key regulators of epidermal keratinocyte survival and differentiation and important drivers of cancer development. Understanding the role of these factors in epidermis is complicated by the fact that each protein is expressed, at different levels, in multiple cells layers in differentiating epidermis, and because AP1 transcription factors regulate competing processes (i.e., proliferation, apoptosis, and differentiation). Various in vivo genetic approaches have been used to study these proteins including targeted and conditional knockdown, overexpression, and expression of dominant-negative inactivating AP1 transcription factors in epidermis. Taken together, these studies suggest that individual AP1 transcription factors have different functions in the epidermis and in cancer development and that altering AP1 transcription factor function in the basal versus suprabasal layers differentially influences the epidermal differentiation response and disease and cancer development.
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21
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Bartis D, Csongei V, Weich A, Kiss E, Barko S, Kovacs T, Avdicevic M, D’Souza VK, Rapp J, Kvell K, Jakab L, Nyitrai M, Molnar TF, Thickett DR, Laszlo T, Pongracz JE. Down-regulation of canonical and up-regulation of non-canonical Wnt signalling in the carcinogenic process of squamous cell lung carcinoma. PLoS One 2013; 8:e57393. [PMID: 23505429 PMCID: PMC3591434 DOI: 10.1371/journal.pone.0057393] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Accepted: 01/23/2013] [Indexed: 12/16/2022] Open
Abstract
The majority of lung cancers (LC) belong to the non-small cell lung carcinoma (NSCLC) type. The two main NSCLC sub-types, namely adenocarcinoma (AC) and squamous cell carcinoma (SCC), respond differently to therapy. Whereas the link between cigarette smoke and lung cancer risk is well established, the relevance of non-canonical Wnt pathway up-regulation detected in SCC remains poorly understood. The present study was undertaken to investigate further the molecular events in canonical and non-canonical Wnt signalling during SCC development. A total of 20 SCC and AC samples with matched non-cancerous controls were obtained after surgery. TaqMan array analysis confirmed up-regulation of non-canonical Wnt5a and Wnt11 and identified down-regulation of canonical Wnt signalling in SCC samples. The molecular changes were tested in primary small airway epithelial cells (SAEC) and various lung cancer cell lines (e.g. A549, H157, etc). Our studies identified Wnt11 and Wnt5a as regulators of cadherin expression and potentiated relocation of β-catenin to the nucleus as an important step in decreased cellular adhesion. The presented data identifies additional details in the regulation of SCC that can aid identification of therapeutic drug targets in the future.
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Affiliation(s)
- Domokos Bartis
- Department of Medical Biotechnology, Institute of Immunology and Biotechnology, Medical School, University of Pecs, Pecs, Hungary
- Department of Medicine, Medical School, University of Birmingham, Birmingham, United Kingdom
| | - Veronika Csongei
- Department of Medical Biotechnology, Institute of Immunology and Biotechnology, Medical School, University of Pecs, Pecs, Hungary
- Szentagothai Research Center, University of Pecs, Pecs, Hungary
| | - Alexander Weich
- Department of Medical Biotechnology, Institute of Immunology and Biotechnology, Medical School, University of Pecs, Pecs, Hungary
| | - Edit Kiss
- Department of Medical Biotechnology, Institute of Immunology and Biotechnology, Medical School, University of Pecs, Pecs, Hungary
- Szentagothai Research Center, University of Pecs, Pecs, Hungary
| | - Szilvia Barko
- Department of Biophysics, Medical School, University of Pecs, Pecs, Hungary
| | - Tamas Kovacs
- Department of Medical Biotechnology, Institute of Immunology and Biotechnology, Medical School, University of Pecs, Pecs, Hungary
- Szentagothai Research Center, University of Pecs, Pecs, Hungary
| | - Monika Avdicevic
- Department of Medical Biotechnology, Institute of Immunology and Biotechnology, Medical School, University of Pecs, Pecs, Hungary
| | - Vijay K. D’Souza
- Department of Medicine, Medical School, University of Birmingham, Birmingham, United Kingdom
| | - Judit Rapp
- Department of Medical Biotechnology, Institute of Immunology and Biotechnology, Medical School, University of Pecs, Pecs, Hungary
- Szentagothai Research Center, University of Pecs, Pecs, Hungary
| | - Krisztian Kvell
- Department of Medical Biotechnology, Institute of Immunology and Biotechnology, Medical School, University of Pecs, Pecs, Hungary
- Szentagothai Research Center, University of Pecs, Pecs, Hungary
| | - Laszlo Jakab
- Department of Surgery, Medical School, University of Pecs, Pecs, Hungary
| | - Miklos Nyitrai
- Department of Medicine, Medical School, University of Birmingham, Birmingham, United Kingdom
- Szentagothai Research Center, University of Pecs, Pecs, Hungary
| | - Tamas F. Molnar
- Department of Surgery, Medical School, University of Pecs, Pecs, Hungary
| | - David R. Thickett
- Department of Medicine, Medical School, University of Birmingham, Birmingham, United Kingdom
| | - Terezia Laszlo
- Department of Pathology, Medical School, University of Pecs, Pecs, Hungary
| | - Judit E. Pongracz
- Department of Medical Biotechnology, Institute of Immunology and Biotechnology, Medical School, University of Pecs, Pecs, Hungary
- Szentagothai Research Center, University of Pecs, Pecs, Hungary
- * E-mail:
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