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Wang C, Chen S, Li X, Fan L, Zhou Z, Zhang M, Shao Y, Shang Z, Niu Y. TEAD3 inhibits the proliferation and metastasis of prostate cancer via suppressing ADRBK2. Biochem Biophys Res Commun 2023; 654:120-127. [PMID: 36907139 DOI: 10.1016/j.bbrc.2023.02.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023]
Abstract
TEAD3 acts as a transcription factor in many tumors to promote tumor occurrence and development. But in prostate cancer (PCa), it appears as a tumor suppressor gene. Recent studies have shown that this may be related to subcellular localization and posttranslational modification. We found that TEAD3 was down-expressed in PCa. Immunohistochemistry of clinical PCa specimens confirmed that TEAD3 expression was the highest in benign prostatic hyperplasia (BPH) tissues, followed by primary PCa tissues, and the lowest in metastatic PCa tissues, and its expression level was positively correlated with overall survival. MTT assay, clone formation assay, and scratch assay confirmed that overexpression of TEAD3 could significantly inhibit the proliferation and migration of PCa cells. Next-generation sequencing results indicated that Hedgehog (Hh) signaling pathway was significantly inhibited after overexpression of TEAD3. Rescue assays suggested that ADRBK2 could reverse the proliferation and migration ability caused by overexpression of TEAD3. TEAD3 is downregulated in PCa and associated with poor patient prognosis. Overexpression of TEAD3 inhibits the proliferation and migration ability of PCa cells via restraining the mRNA level of ADRBK2. These results indicate that TEAD3 was down-expressed in PCa patients and was positively correlated with a high Gleason score and poor prognosis. Mechanistically, we found that the upregulation of TEAD3 inhibits the proliferation and metastasis of prostate cancer by inhibiting the expression of ADRBK2.
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Affiliation(s)
- Chunhui Wang
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Songmao Chen
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Xiaoli Li
- Department of Clinical Laboratory, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin, China
| | - Lin Fan
- Department of Clinical Laboratory, Tianjin People's Hospital, Tianjin, China
| | - Zhe Zhou
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Mingpeng Zhang
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Yi Shao
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Zhiqun Shang
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China.
| | - Yuanjie Niu
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China.
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Chen Y, Renfree MB. Hormonal and Molecular Regulation of Phallus Differentiation in a Marsupial Tammar Wallaby. Genes (Basel) 2020; 11:genes11010106. [PMID: 31963388 PMCID: PMC7017150 DOI: 10.3390/genes11010106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 12/24/2019] [Accepted: 01/14/2020] [Indexed: 11/16/2022] Open
Abstract
Congenital anomalies in phalluses caused by endocrine disruptors have gained a great deal of attention due to its annual increasing rate in males. However, the endocrine-driven molecular regulatory mechanism of abnormal phallus development is complex and remains largely unknown. Here, we review the direct effect of androgen and oestrogen on molecular regulation in phalluses using the marsupial tammar wallaby, whose phallus differentiation occurs after birth. We summarize and discuss the molecular mechanisms underlying phallus differentiation mediated by sonic hedgehog (SHH) at day 50 pp and phallus elongation mediated by insulin-like growth factor 1 (IGF1) and insulin-like growth factor binding protein 3 (IGFBP3), as well as multiple phallus-regulating genes expressed after day 50 pp. We also identify hormone-responsive long non-coding RNAs (lncRNAs) that are co-expressed with their neighboring coding genes. We show that the activation of SHH and IGF1, mediated by balanced androgen receptor (AR) and estrogen receptor 1 (ESR1) signalling, initiates a complex regulatory network in males to constrain the timing of phallus differentiation and to activate the downstream genes that maintain urethral closure and phallus elongation at later stages.
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Affiliation(s)
- Yu Chen
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, FL 32603, USA
- School of BioSciences, The University of Melbourne, Parkville, VIC 3010, Australia
- Correspondence: (Y.C.); (M.B.R.)
| | - Marilyn B. Renfree
- School of BioSciences, The University of Melbourne, Parkville, VIC 3010, Australia
- Correspondence: (Y.C.); (M.B.R.)
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Hyuga T, Alcantara M, Kajioka D, Haraguchi R, Suzuki K, Miyagawa S, Kojima Y, Hayashi Y, Yamada G. Hedgehog Signaling for Urogenital Organogenesis and Prostate Cancer: An Implication for the Epithelial-Mesenchyme Interaction (EMI). Int J Mol Sci 2019; 21:ijms21010058. [PMID: 31861793 PMCID: PMC6982176 DOI: 10.3390/ijms21010058] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/18/2019] [Accepted: 12/18/2019] [Indexed: 12/14/2022] Open
Abstract
Hedgehog (Hh) signaling is an essential growth factor signaling pathway especially in the regulation of epithelial-mesenchymal interactions (EMI) during the development of the urogenital organs such as the bladder and the external genitalia (EXG). The Hh ligands are often expressed in the epithelia, affecting the surrounding mesenchyme, and thus constituting a form of paracrine signaling. The development of the urogenital organ, therefore, provides an intriguing opportunity to study EMI and its relationship with other pathways, such as hormonal signaling. Cellular interactions of prostate cancer (PCa) with its neighboring tissue is also noteworthy. The local microenvironment, including the bone metastatic site, can release cellular signals which can affect the malignant tumors, and vice versa. Thus, it is necessary to compare possible similarities and divergences in Hh signaling functions and its interaction with other local growth factors, such as BMP (bone morphogenetic protein) between organogenesis and tumorigenesis. Additionally, this review will discuss two pertinent research aspects of Hh signaling: (1) the potential signaling crosstalk between Hh and androgen signaling; and (2) the effect of signaling between the epithelia and the mesenchyme on the status of the basement membrane with extracellular matrix structures located on the epithelial-mesenchymal interface.
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Affiliation(s)
- Taiju Hyuga
- Department of Developmental Genetics, Institute of Advanced Medicine, Wakayama Medical University, Kimiidera 811-1, Wakayama 641-8509, Japan; (T.H.); (M.A.); (D.K.); (K.S.)
| | - Mellissa Alcantara
- Department of Developmental Genetics, Institute of Advanced Medicine, Wakayama Medical University, Kimiidera 811-1, Wakayama 641-8509, Japan; (T.H.); (M.A.); (D.K.); (K.S.)
| | - Daiki Kajioka
- Department of Developmental Genetics, Institute of Advanced Medicine, Wakayama Medical University, Kimiidera 811-1, Wakayama 641-8509, Japan; (T.H.); (M.A.); (D.K.); (K.S.)
| | - Ryuma Haraguchi
- Department of Molecular Pathology, Ehime University Graduate School of Medicine, Shitsukawa, Toon City, Ehime 791-0295, Japan;
| | - Kentaro Suzuki
- Department of Developmental Genetics, Institute of Advanced Medicine, Wakayama Medical University, Kimiidera 811-1, Wakayama 641-8509, Japan; (T.H.); (M.A.); (D.K.); (K.S.)
| | - Shinichi Miyagawa
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo 125-8585, Japan;
| | - Yoshiyuki Kojima
- Department of Urology, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima 960-1295, Japan;
| | - Yutaro Hayashi
- Department of Pediatric Urology, Nagoya City University, Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan;
| | - Gen Yamada
- Department of Developmental Genetics, Institute of Advanced Medicine, Wakayama Medical University, Kimiidera 811-1, Wakayama 641-8509, Japan; (T.H.); (M.A.); (D.K.); (K.S.)
- Correspondence: ; Tel.: +81-73-441-0849; Fax: +81-73-499-5026
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4
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Chen Y, Yu H, Pask AJ, Fujiyama A, Suzuki Y, Sugano S, Shaw G, Renfree MB. Hormone-responsive genes in the SHH and WNT/β-catenin signaling pathways influence urethral closure and phallus growth. Biol Reprod 2019; 99:806-816. [PMID: 29767687 DOI: 10.1093/biolre/ioy117] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Accepted: 05/13/2018] [Indexed: 11/14/2022] Open
Abstract
Environmental endocrine disruptors (EEDs) that affect androgen or estrogen activity may disrupt gene regulation during phallus development to cause hypospadias or a masculinized clitoris. We treated developing male tammar wallabies with estrogen and females with androgen from day 20-40 postpartum (pp) during the androgen imprinting window of sensitivity. Estrogen inhibited phallus elongation but had no effect on urethral closure and did not significantly depress testicular androgen synthesis. Androgen treatment in females did not promote phallus elongation but initiated urethral closure. Phalluses were collected for transcriptome sequencing at day 50 pp when they first become sexually dimorphic to examine changes in two signaling pathways, sonic hedgehog (SHH) and wingless-type MMTV integration site family (WNT)/β-catenin. SHH mRNA and β-catenin were predominantly expressed in the urethral epithelium in the tammar phallus, as in eutherian mammals. Estrogen treatment and castration of males induced an upregulation of SHH, while androgen treatment downregulated SHH. These effects appear to be direct since we detected putative estrogen receptor α (ERα) and androgen receptor (AR) binding sites near SHH. WNT5A, like SHH, was downregulated by androgen, while WNT4 was upregulated in female phalluses after androgen treatment. After estrogen treatment, WIF1 and WNT7A were both downregulated in male phalluses. After castration, WNT9A was upregulated. These results suggest that SHH and WNT pathways are regulated by both estrogen and androgen to direct the proliferation and elongation of the phallus during differentiation. Their response to exogenous hormones makes these genes potential targets of EEDs in the etiology of abnormal phallus development including hypospadias.
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Affiliation(s)
- Yu Chen
- School of BioSciences, The University of Melbourne, Victoria, Australia
| | - Hongshi Yu
- School of BioSciences, The University of Melbourne, Victoria, Australia
| | - Andrew J Pask
- School of BioSciences, The University of Melbourne, Victoria, Australia
| | - Asao Fujiyama
- Advanced Genomics Center, National Institute of Genetics, Mishima, Shizuoka, Japan
| | - Yutaka Suzuki
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Sumio Sugano
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Geoff Shaw
- School of BioSciences, The University of Melbourne, Victoria, Australia
| | - Marilyn B Renfree
- School of BioSciences, The University of Melbourne, Victoria, Australia
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5
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Fragni M, Galli D, Nardini M, Rossini E, Vezzoli S, Zametta M, Longhena F, Bellucci A, Roca E, Memo M, Berruti A, Sigala S. Abiraterone acetate exerts a cytotoxic effect in human prostate cancer cell lines. Naunyn Schmiedebergs Arch Pharmacol 2019; 392:729-742. [DOI: 10.1007/s00210-019-01622-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 01/25/2019] [Indexed: 01/16/2023]
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6
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Li N, Truong S, Nouri M, Moore J, Al Nakouzi N, Lubik AA, Buttyan R. Non-canonical activation of hedgehog in prostate cancer cells mediated by the interaction of transcriptionally active androgen receptor proteins with Gli3. Oncogene 2018; 37:2313-2325. [PMID: 29429990 PMCID: PMC5916917 DOI: 10.1038/s41388-017-0098-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 10/18/2017] [Accepted: 11/29/2017] [Indexed: 12/11/2022]
Abstract
Hedgehog (Hh) is an oncogenic signaling pathway that regulates the activity of Gli transcription factors. Canonical Hh is a Smoothened- (Smo-) driven process that alters the post-translational processing of Gli2/Gli3 proteins. Though evidence supports a role for Gli action in prostate cancer (PCa) cell growth and progression, there is little indication that Smo is involved. Here we describe a non-canonical means for activation of Gli transcription in PCa cells mediated by the binding of transcriptionally-active androgen receptors (ARs) to Gli3. Androgens stimulated reporter expression from a Gli-dependent promoter in a variety of AR + PCa cells and this activity was suppressed by an anti-androgen, Enz, or by AR knockdown. Androgens also upregulated expression of endogenous Gli-dependent genes. This activity was associated with increased intranuclear binding of Gli3 to AR that was antagonized by Enz. Fine mapping of the AR binding domain on Gli2 showed that AR recognizes the Gli protein processing domain (PPD) in the C-terminus. Mutations in the arginine-/serine repeat elements of the Gli2 PPD involved in phosphorylation and ubiquitinylation blocked the binding to AR. β-TrCP, a ubiquitin ligase that recognizes the Gli PPD, competed with AR for binding to this site. AR binding to Gli3 suppressed its proteolytic processing to the Gli3 repressor form (Gli3R) whereas AR knockdown increased Gli3R. Both full-length and truncated ARs were able to activate Gli transcription. Finally, we found that an ARbinding decoy polypeptide derived from the Gli2 C-terminus can compete with Gli3 for binding to AR. Exogenous overexpression of this decoy suppressed Gli transcriptional activity in PCa cells. Collectively, this work identifies a novel pathway for non-canonical activation of Hh signaling in PCa cells and identifies a means for interference that may have clinical relevance for PCa patients.
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Affiliation(s)
- Na Li
- The Vancouver Prostate Centre, Vancouver, Canada
| | - Sarah Truong
- The Vancouver Prostate Centre, Vancouver, Canada.,The Interdisciplinary Oncology Program of The University of British Columbia, Vancouver, Canada
| | - Mannan Nouri
- The Interdisciplinary Oncology Program of The University of British Columbia, Vancouver, Canada
| | | | | | | | - Ralph Buttyan
- The Interdisciplinary Oncology Program of The University of British Columbia, Vancouver, Canada. .,Urologic Sciences, The University of British Columbia, Vancouver, Canada.
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7
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Antognelli C, Ferri I, Bellezza G, Siccu P, Love HD, Talesa VN, Sidoni A. Glyoxalase 2 drives tumorigenesis in human prostate cells in a mechanism involving androgen receptor and p53-p21 axis. Mol Carcinog 2017; 56:2112-2126. [PMID: 28470764 DOI: 10.1002/mc.22668] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 04/26/2017] [Accepted: 05/01/2017] [Indexed: 12/20/2022]
Abstract
Glyoxalase 2 (Glo2), a metabolic enzyme, is overexpressed in some human cancers which suggests this enzyme may play a role in human tumorigenesis. In prostate cancer (PCa), the role of Glo2 has been scarcely investigated and there are no studies addressing a causative involvement of this protein in this neoplasia. Here, we examined the immunohistochemical profile of Glo2 in human PCa and benign adjacent tissues and investigated Glo2 involvement in PCa development in human prostate cell lines. PCa and matched adjacent normal tissues were obtained from paraffin sections of primary PCa from 20 patients who had undergone radical prostatectomy. Histopathological diagnosis was confirmed for each sample. Glo2 expression analysis was performed by immunohistochemistry in prostate tissues, and by qRT-PCR and immunoblotting in prostate cell lines. The causative and mechanistic role of Glo2 in prostate tumorigenesis was demonstrated by Glo2 ectopic expression/silencing and employing specific activators/inhibitors. Our results showed that Glo2 was selectively expressed in PCa but not in the luminal compartment of the adjacent benign epithelium consistently in all the examined 20 cases. Glo2 expression in PCa was dependent on androgen receptor (AR) and was aimed at stimulating cell proliferation and eluding apoptosis through a mechanism involving the p53-p21 axis. Glo2 was intensely expressed in the basal cells of benign glands but was not involved in PCa genesis. Our results demonstrate for the first time that Glo2 drives prostate tumorigenesis and suggest that it may represent a novel adjuvant marker in the pathological diagnosis of early PCa.
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Affiliation(s)
- Cinzia Antognelli
- Division of Biosciences and Medical Embryology, Department of Experimental Medicine, School of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Ivana Ferri
- Division of Anatomic Pathology and Histology, Department of Experimental Medicine, School of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Guido Bellezza
- Division of Anatomic Pathology and Histology, Department of Experimental Medicine, School of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Paola Siccu
- Division of Anatomic Pathology and Histology, Department of Experimental Medicine, School of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Harold D Love
- Department of Urologic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Vincenzo N Talesa
- Division of Biosciences and Medical Embryology, Department of Experimental Medicine, School of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Angelo Sidoni
- Division of Anatomic Pathology and Histology, Department of Experimental Medicine, School of Medicine and Surgery, University of Perugia, Perugia, Italy
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8
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Cardoso M, Maia S, Paulo P, Teixeira MR. Oncogenic mechanisms of HOXB13 missense mutations in prostate carcinogenesis. Oncoscience 2016; 3:288-296. [PMID: 28050579 PMCID: PMC5116946 DOI: 10.18632/oncoscience.322] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 09/23/2016] [Indexed: 01/01/2023] Open
Abstract
The recurrent germline mutation HOXB13 p.(Gly84Glu) (G84E) has recently been identified as a risk factor for prostate cancer. In a recent study, we have performed full sequencing of the HOXB13 gene in 462 Portuguese prostate cancer patients with early-onset and/or familial/hereditary disease, and identified two novel missense mutations, p.(Ala128Asp) (A128D) and p.(Phe240Leu) (F240L), that were predicted to be damaging to protein function. In the present work we aimed to investigate the potential oncogenic role of these mutations, comparing to that of the recurrent G84E mutation and wild-type HOXB13. We induced site-directed mutagenesis in a HOXB13 expression vector and established in vitro cell models of prostate carcinogenesis with stable overexpression of either the wild-type or the mutated HOXB13 variants. By performing in vitro assays we observed that, while the wild-type promotes proliferation, also observed with the F240L variant along with a decrease in apoptosis, the A128D mutation decreases apoptosis and promotes anchorage independent growth. No phenotypic impact was observed for the G84E mutation in the cell line model used. Our data show that specific HOXB13 mutations are involved in the acquisition of different cancer-associated capabilities and further support an oncogenic role for HOXB13 in prostate carcinogenesis.
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Affiliation(s)
- Marta Cardoso
- Cancer Genetics Group, IPO Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), 4200-072 Porto, Portugal
| | - Sofia Maia
- Cancer Genetics Group, IPO Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), 4200-072 Porto, Portugal
| | - Paula Paulo
- Cancer Genetics Group, IPO Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), 4200-072 Porto, Portugal
| | - Manuel R Teixeira
- Cancer Genetics Group, IPO Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), 4200-072 Porto, Portugal; Department of Genetics, Portuguese Oncology Institute of Porto (IPO Porto), 4200-072 Porto, Portugal; Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, 4050-313 Porto, Portugal
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9
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Yong W, Jiao C, Jianhui W, Yan Z, Qi P, Xiu W, Zuyue S, Yunhui Z. Mono-2-ethyhexyl phthalate advancing the progression of prostate cancer through activating the hedgehog pathway in LNCaP cells. Toxicol In Vitro 2015; 32:86-91. [PMID: 26710974 DOI: 10.1016/j.tiv.2015.12.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 10/29/2015] [Accepted: 12/18/2015] [Indexed: 01/13/2023]
Abstract
Hedgehog (Hh) pathway plays a critical role in the progression of prostate cancer (PCa), the most commonly diagnosed non-cutaneous cancer in male adults. Studies showed that di-n-butyl phthalate (DBP) could interference with the Hh pathway. Di-2-ethylhexyl phthalate (DEHP), the congener of DBP, is the major plasticizer used in plastic materials that are inevitably exposed by patients with PCa. The aim of this in vitro study was to investigate whether mono-2-ethyhexyl phthalate (MEHP, the active metabolite of DEHP) could activate the Hh pathway of LNCaP cells. Results showed that the expression of the critical gene of Hh pathway PTCH and androgen-regulated gene KLK3 was significantly decreased on 3, 6 and 9 days with Hh pathway inhibitor cyclopamine's treatment. MEHP notably up-regulated the expression of PTCH with a dose-response relationship in the presence of cyclopamine, which indicate that MEHP might target on the downstream components of Hh pathway and advance the progression of PCa through activating the Hh pathway.
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Affiliation(s)
- Wang Yong
- WHO Collaborating Center for Research in Human Reproduction, Shanghai Institute of Planned Parenthood Research, Shanghai 200030, China
| | - Chen Jiao
- Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Wu Jianhui
- WHO Collaborating Center for Research in Human Reproduction, Shanghai Institute of Planned Parenthood Research, Shanghai 200030, China
| | - Zhao Yan
- Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Pan Qi
- WHO Collaborating Center for Research in Human Reproduction, Shanghai Institute of Planned Parenthood Research, Shanghai 200030, China
| | - Wang Xiu
- Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Sun Zuyue
- WHO Collaborating Center for Research in Human Reproduction, Shanghai Institute of Planned Parenthood Research, Shanghai 200030, China.
| | - Zhang Yunhui
- Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China.
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10
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Clinical Implications of Hedgehog Pathway Signaling in Prostate Cancer. Cancers (Basel) 2015; 7:1983-93. [PMID: 26426053 PMCID: PMC4695871 DOI: 10.3390/cancers7040871] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 09/11/2015] [Accepted: 09/22/2015] [Indexed: 02/02/2023] Open
Abstract
Activity in the Hedgehog pathway, which regulates GLI-mediated transcription, is important in organogenesis and stem cell regulation in self-renewing organs, but is pathologically elevated in many human malignancies. Mutations leading to constitutive activation of the pathway have been implicated in medulloblastoma and basal cell carcinoma, and inhibition of the pathway has demonstrated clinical responses leading to the approval of the Smoothened inhibitor, vismodegib, for the treatment of advanced basal cell carcinoma. Aberrant Hedgehog pathway signaling has also been noted in prostate cancer with evidence suggesting that it may render prostate epithelial cells tumorigenic, drive the epithelial-to-mesenchymal transition, and contribute towards the development of castration-resistance through autocrine and paracrine signaling within the tumor microenvironment and cross-talk with the androgen pathway. In addition, there are emerging clinical data suggesting that inhibition of the Hedgehog pathway may be effective in the treatment of recurrent and metastatic prostate cancer. Here we will review these data and highlight areas of active clinical research as they relate to Hedgehog pathway inhibition in prostate cancer.
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11
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Lubinsky M. Sonic Hedgehog, VACTERL, and Fanconi anemia: Pathogenetic connections and therapeutic implications. Am J Med Genet A 2015. [PMID: 26198446 DOI: 10.1002/ajmg.a.37257] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Three systems with VACTERL association findings- mutations of the Sonic Hedgehog (SHH) signaling pathway in mice, murine adriamycin teratogenicity, and human Fanconi anemia (FA) pathway mutations, may all involve a similar mechanism. SHH is up-regulated in irradiated cells, and DNA breaks common with radiation damage in the adriamycin and FA systems are plausible signals for such effects, which would affect development. Since FA related DNA breakage occurs throughout life, SHH disturbances may account for later FA related findings involving hematopoietic and malignancy issues. In support, androgen, a standard treatment for FA hematologic failure, down-regulates SHH, and common FA malignancies such as squamous cell carcinomas and acute myeloid leukemia have been linked to enhanced SHH function. This suggests that interventions lowering SHH levels may be useful therapeutically. Also supporting a connection between pre- and post- natal findings, the frequency and number of VACTERL anomalies with FA correlate with the severity and onset of hematopoietic and malignancy issues. In FA, radial anomalies are the most common of these defects, followed by renal findings, while vertebral and gastrointestinal anomalies are relatively uncommon, a pattern that differs from observations of the VACTERL association. Genes with more severe effects also show a greatly increased incidence of brain abnormalities, and a paucity of such findings with other FA genes suggests that brain development is relatively refractory to SHH related effects, accounting for the rarity of such findings with the association.
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Affiliation(s)
- Mark Lubinsky
- 6003 W. Washington Blvd., Wauwatosa, Wisconsin, 53213
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12
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You J, Zhao J, Wen X, Wu C, Huang Q, Guan F, Wu R, Liang D, Li C. Chemoradiation therapy using cyclopamine-loaded liquid-lipid nanoparticles and lutetium-177-labeled core-crosslinked polymeric micelles. J Control Release 2015; 202:40-8. [PMID: 25637565 DOI: 10.1016/j.jconrel.2015.01.031] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 01/16/2015] [Accepted: 01/26/2015] [Indexed: 12/12/2022]
Abstract
Cyclopamine (CPA), a potent inhibitor of the Hedgehog pathway, has produced promising anticancer results in a number of preclinical studies. CPA has also been found to enhance tumor response to radiation therapy. However, CPA is water insoluble. A drug delivery system suitable for systemic administration of CPA is needed before CPA can be considered for clinical translation. We hypothesized that CPA solubilized in a liquid-lipid nanoparticle system (CPA-LLP) for intravenous injection would have desirable pharmacokinetic properties and increased anticancer efficacy. We further hypothesized that CPA-LLP would enhance the response of tumor cells to targeted radiotherapy delivered selectively through intratumoral injection of lutetium-177 bound to core-crosslinked polymeric micelles (CCPM-(177)Lu). We tested the combination therapy in 4T1 murine breast cancer and Miapaca-2 human pancreatic adenocarcinoma models. The results showed that CPA-LLP had higher antitumor cytotoxicity than free CPA (IC50 values [mean±SEM]: 2.7±0.2μM vs. 11.3±1.2μM against 4T1 cells; 1.8±0.2 vs. 17.1±1.26μM against Miapaca-2 cells; p<0.0001). In both cell lines, CPA-LLP resulted in significantly lower clonogenicity than free CPA (p<0.05). Moreover, in both cell lines, CPA-LLP significantly enhanced the cell response to CCPM-(177)Lu radiotherapy as measured by clonogenic assay (p<0.05). In 4T1 and Miapaca-2 mouse xenograft models, the combination of CPA-LLP and CCPM-(177)Lu delayed tumor growth more than either monotherapy did alone. In the 4T1 tumor model, tumor size at 16days after treatment was significantly smaller with the combination therapy than with all the other treatments. In the Miapaca-2 model, the combination therapy resulted in the highest rate of mouse survival and prevented tumor relapse. In conclusion, the combination of CPA-LLP and CCPM-(177)Lu was an effective strategy for treating breast and pancreatic cancer and deserves further investigation.
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Affiliation(s)
- Jian You
- Department of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA
| | - Jun Zhao
- Department of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA
| | - Xiaoxia Wen
- Department of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA
| | - Chunhui Wu
- Department of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA
| | - Qian Huang
- Department of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA
| | - Fada Guan
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA
| | - Richard Wu
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA
| | - Dong Liang
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Texas Southern University, 3100 Cleburne Street, Houston, TX 77004, USA
| | - Chun Li
- Department of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA.
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13
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Li EH, Liang SJ, Sun WL, Xu DL, Hong Y, Xia SJ, Jiang JT. Expression of the Shh/Bmp4 signaling pathway during the development of anorectal malformations in a male rat model of prenatal exposure to di(n-butyl) phthalate. Toxicol Res (Camb) 2015. [DOI: 10.1039/c4tx00095a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Sonic hedgehog (Shh)/bone morphogenetic protein 4 (Bmp4) is an androgen-regulated signaling pathway that has been shown to be crucial for embryonic development.
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Affiliation(s)
- En-Hui Li
- Department of Urology
- Shanghai First People's Hospital affiliated to Shanghai Jiaotong University
- Shanghai 200080
- China
| | - Sheng-Jie Liang
- Department of Pediatric Urology
- Anhui Provincial Children's Hospital
- Hefei
- China
| | - Wen-Lan Sun
- Department of Geriatrics
- Shanghai First People's Hospital affiliated to Shanghai Jiaotong University
- Shanghai 200080
- China
| | - Dong-Liang Xu
- Department of Urology
- Shanghai First People's Hospital affiliated to Shanghai Jiaotong University
- Shanghai 200080
- China
| | - Yan Hong
- Department of Central Laboratory
- Shanghai First People's Hospital affiliated to Shanghai Jiaotong University
- Shanghai 200080
- China
| | - Shu-Jie Xia
- Department of Urology
- Shanghai First People's Hospital affiliated to Shanghai Jiaotong University
- Shanghai 200080
- China
| | - Jun-Tao Jiang
- Department of Urology
- Shanghai First People's Hospital affiliated to Shanghai Jiaotong University
- Shanghai 200080
- China
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14
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Abstract
Ovarian cancer is a leading gynecological malignancy associated with high mortality. Hedgehog signaling has been found to be important for cell proliferation and tumor growth for multiple cancers, including ovarian cancer. The present study showed that the drug cyclopamine, which blocks the hedgehog signaling pathway, could reduce cancer cell growth and proliferation and induce cell apoptosis. In addition, the silencing of the glioma-associated oncogene (Gli)3, a downstream component of the hedgehog signaling pathway, could further enhance the antitumor effects of cyclopamine. Our results suggest that Gli3 may act as resistance to cyclopamine’s effect on tumor growth. The combined treatment of cyclopamine application and Gli3 silencing therapy, therefore, may provide novel directions for clinical management of ovarian cancer.
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Affiliation(s)
- Hai-Yan Liu
- Department of Gynecology, First Affiliated Hospital of Liaoning Medical College, Jinzhou, People's Republic of China
| | - Zheng Dong
- Department of Gynecology, First Affiliated Hospital of Liaoning Medical College, Jinzhou, People's Republic of China
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15
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Coll-Bastus N, Mao X, Young BD, Sheer D, Lu YJ. DNA replication-dependent induction of gene proximity by androgen. Hum Mol Genet 2014; 24:963-71. [PMID: 25281662 DOI: 10.1093/hmg/ddu508] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The male hormone androgen, working through the androgen receptor (AR), plays a major role in physiological process and disease development. Previous studies of AR mainly focus on its transcriptional activity. Here, we found that androgen-induced TMPRSS2 and ERG gene proximity is mediated by AR control of DNA replication rather than gene transcription. We demonstrate that, in both AR transactivation-positive and -negative prostate cells, androgen regulates DNA replication and androgen-induced gene proximity relies on both DNA replication-licensing and actual DNA replication activity. Androgen stimulation advances DNA replication timing of certain genomic regions, which may potentially increase gene proximity through sharing the same replication factory at a similar time. Therefore, we have revealed novel mechanisms of AR biological function, which will stimulate new research directions.
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Affiliation(s)
| | | | - Bryan D Young
- Centre for Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London EC1M 6BQ, UK and
| | - Denise Sheer
- Centre for Neuroscience and Trauma, Blizard Institute, Queen Mary University of London, London E1 2AT, UK
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16
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Belle VA, McDermott N, Meunier A, Marignol L. NUMB inhibition of NOTCH signalling as a therapeutic target in prostate cancer. Nat Rev Urol 2014; 11:499-507. [PMID: 25134838 PMCID: PMC5240474 DOI: 10.1038/nrurol.2014.195] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Prostate cancer is among the most prevalent life-threatening cancers diagnosed in the male population today. Various methods have been exploited in an attempt to treat this disease but these treatments, alongside preventative tactics, have been insufficient to control mortality rates and have usually resulted in detrimental adverse events. An opportunity to devise more-specific and potentially more-effective approaches for the eradication of prostate tumours can be found by targeting specific biological pathways. NUMB (protein numb homologue), a key regulator of cell fate, represents an attractive, actionable target in prostate cancer. NUMB participates in the observed deregulation of NOTCH (neurogenic locus notch homologue protein) signalling in prostate tumours, and the NUMB-NOTCH interaction regulates cell fate. NUMB has potential both as a target for control of prostate tumorigenesis and as a biomarker for identification of patients with prostate cancer who are likely to benefit from NOTCH inhibition.
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Affiliation(s)
| | - Niamh McDermott
- Radiation and Urologic Oncology, Applied Radiation Therapy Trinity and Prostate Molecular Oncology Research Group, Trinity College Dublin, Trinity Centre for Health Sciences, James's Street, Dublin 8, Ireland
| | - Armelle Meunier
- Radiation and Urologic Oncology, Applied Radiation Therapy Trinity and Prostate Molecular Oncology Research Group, Trinity College Dublin, Trinity Centre for Health Sciences, James's Street, Dublin 8, Ireland
| | - Laure Marignol
- Radiation and Urologic Oncology, Applied Radiation Therapy Trinity and Prostate Molecular Oncology Research Group, Trinity College Dublin, Trinity Centre for Health Sciences, James's Street, Dublin 8, Ireland
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17
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Chew KY, Pask AJ, Hickford D, Shaw G, Renfree MB. A dual role for SHH during phallus development in a marsupial. Sex Dev 2014; 8:166-77. [PMID: 24480851 DOI: 10.1159/000357927] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/11/2013] [Indexed: 11/19/2022] Open
Abstract
The mammalian phallus arises from identical primordia in both sexes and is patterned in part by the key morphogen Sonic hedgehog (SHH). We have investigated SHH and other morphogens during phallus development in the tammar wallaby. In this marsupial, testis differentiation and androgen production occurs just after birth, but it takes a further 50-60 days before the phallus becomes sexually dimorphic. One day before birth, SHH was expressed in both sexes in the urethral epithelium. In males, there was a marked upregulation of SHH, GLI2, and AR at day 50 postpartum, a time when testicular androgen production falls. SHH, GLI2, and AR were downregulated in female pouch young treated with androstanediol from days 24-50, but not when treatments were begun at day 29, suggesting an early window of androgen sensitivity. SHH, GLI2, and AR expression in the phallus of males castrated at day 23 did not differ from controls, but there was an increase in SHH and GLI2 and a decrease in FGF8 and BMP4 expression when the animals were castrated at day 29. These results suggest that the early patterning by SHH is androgen-independent followed by an androgen-dependent window of sensitivity and a sharp rise in SHH expression after androgen withdrawal at day 50.
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Affiliation(s)
- K Y Chew
- ARC Centre of Excellence in Kangaroo Genomics, The University of Melbourne, Melbourne, Vic., Australia
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18
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Renfree MB, Chew KY, Shaw G. Inducing sex reversal of the urogenital system of marsupials. Differentiation 2014; 87:23-31. [DOI: 10.1016/j.diff.2013.11.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Accepted: 11/20/2013] [Indexed: 11/29/2022]
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19
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Gowda PS, Deng JD, Mishra S, Bandyopadhyay A, Liang S, Lin S, Mahalingam D, Sun LZ. Inhibition of hedgehog and androgen receptor signaling pathways produced synergistic suppression of castration-resistant prostate cancer progression. Mol Cancer Res 2013; 11:1448-61. [PMID: 23989930 DOI: 10.1158/1541-7786.mcr-13-0278] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
UNLABELLED Metastatic prostate cancer is initially treated with androgen ablation therapy, which causes regression of androgen-dependent tumors. However, these tumors eventually relapse resulting in recurrent castration-resistant prostate cancer (CRPC). Currently, there is no effective therapy for CRPC and the molecular mechanisms that lead to the development of CRPC are not well understood. Here, we evaluated the hypothesis that combined inhibition of Hedgehog (Hh) and androgen receptor (AR) signaling will synergistically attenuate the growth of CRPC in vitro and in vivo. Androgen deprivation induced full-length androgen receptor protein levels in CRPC cells, but decreased its nuclear localization and transcriptional activity. However, androgen deprivation also increased a truncated form of androgen receptor (lacking ligand-binding domain) that possessed transcriptional activity in CRPC cells. Androgen deprivation also promoted the expression of Hh signaling components in CRPC cells, xenograft tumors, and the prostate glands of castrated mice. Importantly, although inhibition of either Hh or androgen receptor signaling alone was only moderately effective in blocking CRPC cell growth, combination of an Hh pathway inhibitor and a noncompetitive androgen receptor inhibitor synergistically suppressed the growth of CRPC cells in vitro and in vivo. Finally, noncompetitive inhibition of androgen receptor, but not competitive inhibition, was effective at limiting the activity of truncated androgen receptor leading to the inhibition of CRPC. IMPLICATIONS Combined therapy using Hh inhibitors and a non-competitive AR inhibitor may limit CRPC growth.
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Affiliation(s)
- Pramod S Gowda
- Department of Cellular & Structural Biology, University of Texas Health Science Center, 7703 Floyd Curl Drive, Mail Code 7762, San Antonio, TX 78229-3900.
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20
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Ma Y, Liang D, Liu J, Wen JG, Servoll E, Waaler G, Sæter T, Axcrona K, Vlatkovic L, Axcrona U, Paus E, Yang Y, Zhang Z, Kvalheim G, Nesland JM, Suo Z. SHBG is an important factor in stemness induction of cells by DHT in vitro and associated with poor clinical features of prostate carcinomas. PLoS One 2013; 8:e70558. [PMID: 23936228 PMCID: PMC3728318 DOI: 10.1371/journal.pone.0070558] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2012] [Accepted: 06/24/2013] [Indexed: 11/18/2022] Open
Abstract
Androgen plays a vital role in prostate cancer development. However, it is not clear whether androgens influence stem-like properties of prostate cancer, a feature important for prostate cancer progression. In this study, we show that upon DHT treatment in vitro, prostate cancer cell lines LNCaP and PC-3 were revealed with higher clonogenic potential and higher expression levels of stemness related factors CD44, CD90, Oct3/4 and Nanog. Moreover, sex hormone binding globulin (SHBG) was also simultaneously upregulated in these cells. When the SHBG gene was blocked by SHBG siRNA knock-down, the induction of Oct3/4, Nanog, CD44 and CD90 by DHT was also correspondingly blocked in these cells. Immunohistochemical evaluation of clinical samples disclosed weakly positive, and areas negative for SHBG expression in the benign prostate tissues, while most of the prostate carcinomas were strongly positive for SHBG. In addition, higher levels of SHBG expression were significantly associated with higher Gleason score, more seminal vesicle invasions and lymph node metastases. Collectively, our results show a role of SHBG in upregulating stemness of prostate cancer cells upon DHT exposure in vitro, and SHBG expression in prostate cancer samples is significantly associated with poor clinicopathological features, indicating a role of SHBG in prostate cancer progression.
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Affiliation(s)
- Yuanyuan Ma
- Department of Pathology, The Norwegian Radium Hospital, Institute of Clinical Medicine, Oslo University Hospital, Faculty of Medicine, University of Oslo, Oslo, Norway
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Thoracic Surgery II, Peking University Cancer Hospital & Institute, Beijing, China
| | - Dongming Liang
- Department of Pathology, The Norwegian Radium Hospital, Institute of Clinical Medicine, Oslo University Hospital, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Jian Liu
- Department of Pathology, The Norwegian Radium Hospital, Institute of Clinical Medicine, Oslo University Hospital, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Jian-Guo Wen
- Department of Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Henan, China
| | - Einar Servoll
- Department of Surgery, Soerlandet Hospital, Arendal, Norway
| | - Gudmund Waaler
- Department of Surgery, Soerlandet Hospital, Arendal, Norway
| | | | - Karol Axcrona
- Departments of Urology, The Norwegian Radium Hospital, Oslo University Hospital, University of Oslo, Oslo, Norway
| | - Ljiljana Vlatkovic
- Department of Pathology, The Norwegian Radium Hospital, Institute of Clinical Medicine, Oslo University Hospital, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Ulrika Axcrona
- Department of Pathology, The Norwegian Radium Hospital, Institute of Clinical Medicine, Oslo University Hospital, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Elisabeth Paus
- Department of Medical Biochemistry, Oslo University Hospital, University of Oslo, Oslo, Norway
| | - Yue Yang
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Thoracic Surgery II, Peking University Cancer Hospital & Institute, Beijing, China
| | - Zhiqian Zhang
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Cell Biology, Peking University Cancer Hospital & Institute, Beijing, China
| | - Gunnar Kvalheim
- Departments of Cell Therapy, The Norwegian Radium Hospital, Oslo University Hospital, University of Oslo, Oslo, Norway
| | - Jahn M. Nesland
- Department of Pathology, The Norwegian Radium Hospital, Institute of Clinical Medicine, Oslo University Hospital, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Zhenhe Suo
- Department of Pathology, The Norwegian Radium Hospital, Institute of Clinical Medicine, Oslo University Hospital, Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Henan, China
- * E-mail:
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21
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Ibuki N, Ghaffari M, Pandey M, Iu I, Fazli L, Kashiwagi M, Tojo H, Nakanishi O, Gleave ME, Cox ME. TAK-441, a novel investigational smoothened antagonist, delays castration-resistant progression in prostate cancer by disrupting paracrine hedgehog signaling. Int J Cancer 2013; 133:1955-66. [PMID: 23564295 DOI: 10.1002/ijc.28193] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Accepted: 03/20/2013] [Indexed: 01/04/2023]
Abstract
Hedgehog (Hh) signaling is a highly conserved intercellular and intracellular communication mechanism that governs organogenesis and is dysregulated in cancers of numerous tissues, including prostate. Up-regulated expression of the Hh ligands, Sonic (Shh) and Desert (Dhh), has been reported in androgen-deprived and castration-resistant prostate cancer (CRPC). In a cohort of therapy naive, short- and long-term neoadjuvant hormone therapy-treated (NHT), and CRPC specimens, we observed elevated Dhh expression predominantly in long-term NHT specimens and elevated Shh expression predominantly in CRPC specimens. Together with previously demonstrated reciprocal signaling between Shh-producing prostate cancer (PCa) cells and urogenital mesenchymal fibroblasts, these results suggest that castration-induced Hh expression promotes CRPC progression through reciprocal paracrine signaling within the tumor microenvironment. We tested whether the orally available Smoothened (Smo) antagonist, TAK-441, could impair castration-resistant progression of LNCaP PCa xenografts by disrupting paracrine Hh signaling. Although TAK-441 or cyclopamine did not affect androgen withdrawal-induced Shh up-regulation or viability of LNCaP cells, castration-resistant progression of LNCaP xenografts was significantly delayed in animals treated with TAK-441. In TAK-441-treated xenografts, expression of murine orthologs of the Hh-activated genes, Gli1, Gli2 and Ptch1, was substantially suppressed, while expression of the corresponding human orthologs was unaffected. As androgen-deprived LNCaP cells up-regulate Shh expression, but are not sensitive to Smo antagonists, these studies indicate that TAK-441 leads to delayed castration-resistant progression of LNCaP xenografts by disrupting paracrine Hh signaling with the tumor stroma. Thus, paracrine Hh signaling may offer unique opportunities for prognostic biomarker development, drug targeting and therapeutic response monitoring of PCa progression.
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Affiliation(s)
- Naokazu Ibuki
- The Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, British Columbia, Canada
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22
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Fayyaz S, Farooqi AA. miRNA and TMPRSS2-ERG do not mind their own business in prostate cancer cells. Immunogenetics 2013; 65:315-32. [DOI: 10.1007/s00251-012-0677-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2012] [Accepted: 12/25/2012] [Indexed: 12/19/2022]
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23
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Perrot CY, Javelaud D, Mauviel A. Overlapping activities of TGF-β and Hedgehog signaling in cancer: therapeutic targets for cancer treatment. Pharmacol Ther 2012; 137:183-99. [PMID: 23063491 DOI: 10.1016/j.pharmthera.2012.10.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2012] [Accepted: 09/28/2012] [Indexed: 12/11/2022]
Abstract
Recent advances in the field of cancer therapeutics come from the development of drugs that specifically recognize validated oncogenic or pro-metastatic targets. The latter may be mutated proteins with altered function, such as kinases that become constitutively active, or critical components of growth factor signaling pathways, whose deregulation leads to aberrant malignant cell proliferation and dissemination to metastatic sites. We herein focus on the description of the overlapping activities of two important developmental pathways often exacerbated in cancer, namely Transforming Growth Factor-β (TGF-β) and Hedgehog (HH) signaling, with a special emphasis on the unifying oncogenic role played by GLI1/2 transcription factors. The latter are the main effectors of the canonical HH pathway, yet are direct target genes of TGF-β/SMAD signal transduction. While tumor-suppressor in healthy and pre-malignant tissues, TGF-β is often expressed at high levels in tumors and contributes to tumor growth, escape from immune surveillance, invasion and metastasis. HH signaling regulates cell proliferation, differentiation and apoptosis, and aberrant HH signaling is found in a variety of cancers. We discuss the current knowledge on HH and TGF-β implication in cancer including cancer stem cell biology, as well as the current state, both successes and failures, of targeted therapeutics aimed at blocking either of these pathways in the pre-clinical and clinical settings.
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Affiliation(s)
- Carole Y Perrot
- Institut Curie, Team TGF-β and Oncogenesis, 91400, Orsay, France; INSERM U1021, 91400, Orsay, France
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