1
|
Zhou H, Zou X, Li H, Li T, Chen L, Cheng X. Decreased secretoglobin family 2A member 1expression is associated with poor outcomes in endometrial cancer. Oncol Lett 2020; 20:24. [PMID: 32774497 PMCID: PMC7406884 DOI: 10.3892/ol.2020.11885] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 06/05/2020] [Indexed: 01/14/2023] Open
Abstract
Endometrial cancer is the most common malignancies in developed countries. The present study aimed to identify the role of secretoglobin family 2A member 1 (SCGB2A1) expression in uteri corpus endometrial carcinoma (UCEC) from The Cancer Genome Atlas (TCGA) database, and determine the SCGB2A1-associated downstream signaling pathways. The clinicopathological characteristics and gene expression data were downloaded from TCGA database. The Kaplan-Meier method and Cox multivariate model were used for survival analysis. Logistic regression was used to analyze the association between the clinicopathological features and SCGB2A1 expression. For validation, data of SCGB2A1 mRNA expression and protein expression were obtained and then survival analysis was performed for 47 patients with endometrial cancer from the Fudan University Shanghai Cancer Center (FUSCC). In TCGA dataset, SCGB2A1 expression was significantly higher in tumor tissues (n=528) compared with normal tissues (n=23, P<0.001). The decrease in SCGB2A1 expression in UCEC was significantly associated with age at diagnosis, high tumor grade, residual tumor, positive peritoneal cytology, pelvic lymph node metastasis, para-aortic lymph node metastasis and advanced clinical stage with P<0.05. In the multivariate analysis, SCGB2A1 expression was identified as an independent prognostic factor. In the FUSCC validation set, low SCGB2A1 expression was also associated with worse survival compared with high expression in endometrial cancer (P<0.001). Gene Set Enrichment Analysis revealed that SCGB2A1 may be involved in tumor proliferation and cell cycle regulation. In conclusion, SCGB2A1 may have an important role in the prognosis of UCEC, and has value as a new target for novel therapeutic strategies.
Collapse
Affiliation(s)
- Hongyu Zhou
- Department of Gynecological Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, P.R. China
| | - Xuan Zou
- Department of Gynecological Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China.,Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China
| | - Haoran Li
- Department of Gynecological Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China.,Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China
| | - Tianjiao Li
- Department of Gynecological Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China.,Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China
| | - Lihua Chen
- Department of Gynecological Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China.,Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China
| | - Xi Cheng
- Department of Gynecological Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, P.R. China
| |
Collapse
|
2
|
Tew BY, Hong TB, Otto-Duessel M, Elix C, Castro E, He M, Wu X, Pal SK, Kalkum M, Jones JO. Vitamin K epoxide reductase regulation of androgen receptor activity. Oncotarget 2017; 8:13818-13831. [PMID: 28099154 PMCID: PMC5355141 DOI: 10.18632/oncotarget.14639] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 01/04/2017] [Indexed: 01/16/2023] Open
Abstract
Long-term use of warfarin has been shown to be associated with a reduced risk of prostate cancer. Warfarin belongs to the vitamin K antagonist class of anticoagulants, which inhibit vitamin K epoxide reductase (VKOR). The vitamin K cycle is primarily known for its role in γ-carboxylation, a rare post-translational modification important in blood coagulation. Here we show that warfarin inhibits the transcriptional activity of the androgen receptor (AR), an important driver of prostate cancer development and progression. Warfarin treatment or knockdown of its target VKOR inhibits the activity of AR both in cell lines and in mouse prostate tissue. We demonstrate that AR can be γ-carboxylated, and mapped the γ-carboxylation to glutamate residue 2 (E2) using mass spectrometry. However, mutation of E2 and other glutamates on AR failed to suppress the effects of warfarin on AR suggesting that inhibition of AR is γ-carboxylation independent. To identify pathways upstream of AR signaling that are affected by warfarin, we performed RNA-seq on prostates of warfarin-treated mice. We found that warfarin inhibited peroxisome proliferator-activated receptor gamma (PPARγ) signaling, which in turn, inhibited AR signaling. Although warfarin is unfit for use as a chemopreventative due to its anticoagulatory effects, our data suggest that its ability to reduce prostate cancer risk is independent of its anticoagulation properties. Furthermore, our data show that warfarin inhibits PPARγ and AR signaling, which suggests that inhibition of these pathways could be used to reduce the risk of developing prostate cancer.
Collapse
Affiliation(s)
- Ben Yi Tew
- Department of Cancer Biology, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA, USA
| | - Teresa B Hong
- Department of Molecular Immunology, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA, USA
| | - Maya Otto-Duessel
- Department of Cancer Biology, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA, USA
| | - Catherine Elix
- Department of Cancer Biology, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA, USA
| | - Egbert Castro
- Department of Cancer Biology, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA, USA
| | - Miaoling He
- Department of Cancer Biology, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA, USA
| | - Xiwei Wu
- Department of Molecular and Cellular Biology, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA, USA
| | - Sumanta K Pal
- Department of Medical Oncology, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA, USA
| | - Markus Kalkum
- Department of Molecular Immunology, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA, USA
| | - Jeremy O Jones
- Department of Cancer Biology, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA, USA
| |
Collapse
|
3
|
Antoniassi MP, Intasqui P, Camargo M, Zylbersztejn DS, Carvalho VM, Cardozo KHM, Bertolla RP. Analysis of the functional aspects and seminal plasma proteomic profile of sperm from smokers. BJU Int 2016; 118:814-822. [DOI: 10.1111/bju.13539] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Mariana Pereira Antoniassi
- Department of Surgery; Division of Urology; Human Reproduction Section; Sao Paulo Federal University; Sao Paulo Brazil
| | - Paula Intasqui
- Department of Surgery; Division of Urology; Human Reproduction Section; Sao Paulo Federal University; Sao Paulo Brazil
| | - Mariana Camargo
- Department of Surgery; Division of Urology; Human Reproduction Section; Sao Paulo Federal University; Sao Paulo Brazil
| | - Daniel Suslik Zylbersztejn
- Department of Surgery; Division of Urology; Human Reproduction Section; Sao Paulo Federal University; Sao Paulo Brazil
| | | | | | - Ricardo Pimenta Bertolla
- Department of Surgery; Division of Urology; Human Reproduction Section; Sao Paulo Federal University; Sao Paulo Brazil
- Hospital Sao Paulo; Sao Paulo Brazil
| |
Collapse
|
4
|
Donadeu FX, Fahiminiya S, Esteves CL, Nadaf J, Miedzinska K, McNeilly AS, Waddington D, Gérard N. Transcriptome profiling of granulosa and theca cells during dominant follicle development in the horse. Biol Reprod 2014; 91:111. [PMID: 25253738 DOI: 10.1095/biolreprod.114.118943] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Several aspects of equine ovarian physiology are unique among domestic species. Moreover, follicular growth patterns are very similar between horses and humans. This study aimed to characterize, for the first time, global gene expression profiles associated with growth and preovulatory (PO) maturation of equine dominant follicles. Granulosa cells (GCs) and theca interna cells (TCs) were harvested from follicles (n = 5) at different stages of an ovulatory wave in mares corresponding to early dominance (ED; diameter ≥22 mm), late dominance (LD; ≥33 mm) and PO stage (34 h after administration of crude equine gonadotropins at LD stage), and separately analyzed on a horse gene expression microarray, followed by validation using quantitative PCR and immunoblotting/immunohistochemistry. Numbers of differentially expressed transcripts (DETs; ≥2-fold; P < 0.05) during the ED-LD and LD-PO transitions were 546 and 2419 in GCs and 5 and 582 in TCs. The most prominent change in GCs was the down-regulation of transcripts associated with cell division during both ED-LD and LD-PO. In addition, DET sets during LD-PO in GCs were enriched for genes involved in cell communication/adhesion, antioxidation/detoxification, immunity/inflammation, and cholesterol biosynthesis. In contrast, the largest change in TCs during the LD-PO transition was an up-regulation of genes involved in immune activation, with other DET sets mapping to GPCR/cAMP signaling, lipid/amino acid metabolism, and cell proliferation/survival and differentiation. In conclusion, distinct expression profiles were identified between growing and PO follicles and, particularly, between GCs and TCs within each stage. Several DETs were identified that have not been associated with follicle development in other species.
Collapse
Affiliation(s)
- F Xavier Donadeu
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush, Midlothian, United Kingdom
| | - Somayyeh Fahiminiya
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush, Midlothian, United Kingdom INRA and CNRS, UMR 6175 Physiologie de la Reproduction et des Comportements, Nouzilly, France Université François Rabelais de Tours, UMR 6175 Physiologie de la Reproduction et des Comportements, Tours, France
| | - Cristina L Esteves
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush, Midlothian, United Kingdom
| | - Javad Nadaf
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush, Midlothian, United Kingdom
| | - Katarzyna Miedzinska
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush, Midlothian, United Kingdom
| | - Alan S McNeilly
- The Queen's Medical Research Institute, MRC Centre for Reproductive Health, Edinburgh, United Kingdom
| | - David Waddington
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush, Midlothian, United Kingdom
| | - Nadine Gérard
- INRA and CNRS, UMR 6175 Physiologie de la Reproduction et des Comportements, Nouzilly, France Université François Rabelais de Tours, UMR 6175 Physiologie de la Reproduction et des Comportements, Tours, France Haras Nationaux, UMR 6175 Physiologie de la Reproduction et des Comportements, Nouzilly, France
| |
Collapse
|
5
|
Differential expression of secretoglobins in normal ovary and in ovarian carcinoma – Overexpression of mammaglobin-1 is linked to tumor progression. Arch Biochem Biophys 2014; 547:27-36. [DOI: 10.1016/j.abb.2014.02.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 02/05/2014] [Accepted: 02/21/2014] [Indexed: 11/18/2022]
|
6
|
Taylor JM, Yaneva M, Velasco K, Philip J, Erdjument-Bromage H, Ostrovnaya I, Lilja HG, Bochner BH, Tempst P. Aminopeptidase activities as prospective urinary biomarkers for bladder cancer. Proteomics Clin Appl 2014; 8:317-26. [PMID: 24591208 DOI: 10.1002/prca.201300118] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 11/07/2013] [Accepted: 11/17/2013] [Indexed: 12/19/2022]
Abstract
PURPOSE Proteases have been implicated in cancer progression and invasiveness. We have investigated the activities, as opposed to simple protein levels, of selected aminopeptidases in urine specimens to serve as potential novel biomarkers for urothelial cancer. EXPERIMENTAL DESIGN The unique urinary proteomes of males and females were profiled to establish the presence of a gender-independent set of aminopeptidases. Samples were also collected from patients with urothelial cancer and matched controls. A SOP for urine processing was developed taking into account hydration variation. Five specific aminopeptidase activity assays, using fluorophoric substrates, were optimized for evaluation of marker potential. RESULTS Nineteen exopeptidases and 21 other proteases were identified in urine and the top-five most abundant aminopeptidases, identical in both genders, selected for functional studies. Depending on the enzyme, activities were consistently lower (p ≤ 0.05), higher or unchanged in the cancer samples as compared to controls. Two selected aminopeptidase activities used as a binary classifier resulted in a ROC curve with an AUC = 0.898. CONCLUSION AND CLINICAL RELEVANCE We have developed functional assays that characterize aminopeptidase activities in urine specimens with adequate technical and intraindividual reproducibility. With further testing, it could yield a reliable biomarker test for bladder cancer detection or prognostication.
Collapse
Affiliation(s)
- Jennifer M Taylor
- Protein Center, Memorial Sloan-Kettering Cancer Center, New York, NY, USA; Department of Surgery, Urology Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA; Department of Urology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
7
|
Ubels JL, Gipson IK, Spurr-Michaud SJ, Tisdale AS, Van Dyken RE, Hatton MP. Gene expression in human accessory lacrimal glands of Wolfring. Invest Ophthalmol Vis Sci 2012; 53:6738-47. [PMID: 22956620 DOI: 10.1167/iovs.12-10750] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
PURPOSE The accessory lacrimal glands are assumed to contribute to the production of tear fluid, but little is known about their function. The goal of this study was to conduct an analysis of gene expression by glands of Wolfring that would provide a more complete picture of the function of these glands. METHODS Glands of Wolfring were isolated from frozen sections of human eyelids by laser microdissection. RNA was extracted from the cells and hybridized to gene expression arrays. The expression of several of the major genes was confirmed by immunohistochemistry. RESULTS Of the 24 most highly expressed genes, 9 were of direct relevance to lacrimal function. These included lysozyme, lactoferrin, tear lipocalin, and lacritin. The glands of Wolfring are enriched in genes related to protein synthesis, targeting, and secretion, and a large number of genes for proteins with antimicrobial activity were detected. Ion channels and transporters, carbonic anhydrase, and aquaporins were abundantly expressed. Genes for control of lacrimal function, including cholinergic, adrenergic, vasoactive intestinal polypeptide, purinergic, androgen, and prolactin receptors were also expressed in gland of Wolfring. CONCLUSIONS The data suggest that the function of glands of Wolfring is similar to that of main lacrimal glands and are consistent with secretion electrolytes, fluid, and protein under nervous and hormonal control. Since these glands secrete directly onto the ocular surface, their location may allow rapid response to exogenous stimuli and makes them readily accessible to topical drugs.
Collapse
Affiliation(s)
- John L Ubels
- Department of Biology, Calvin College, Grand Rapids, Michigan 49546, USA.
| | | | | | | | | | | |
Collapse
|
8
|
Zhao Z, Liu J, Wasinger VC, Malouf T, Nguyen-Khuong T, Walsh B, Willcox MD. Tear lipocalin is the predominant phosphoprotein in human tear fluid. Exp Eye Res 2010; 90:344-9. [DOI: 10.1016/j.exer.2009.11.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2009] [Revised: 11/19/2009] [Accepted: 11/23/2009] [Indexed: 10/20/2022]
|
9
|
Smirnov AN. Hormonal mechanisms of sex differentiation of the liver: the modern conception and problems. Russ J Dev Biol 2009. [DOI: 10.1134/s1062360409050026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
10
|
Tassi RA, Calza S, Ravaggi A, Bignotti E, Odicino FE, Tognon G, Donzelli C, Falchetti M, Rossi E, Todeschini P, Romani C, Bandiera E, Zanotti L, Pecorelli S, Santin AD. Mammaglobin B is an independent prognostic marker in epithelial ovarian cancer and its expression is associated with reduced risk of disease recurrence. BMC Cancer 2009; 9:253. [PMID: 19635143 PMCID: PMC2724548 DOI: 10.1186/1471-2407-9-253] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2009] [Accepted: 07/27/2009] [Indexed: 11/23/2022] Open
Abstract
Background Traditional prognostic factors in epithelial ovarian cancer (EOC) are inadequate in predicting recurrence and long-term prognosis, but genome-wide cancer research has recently provided multiple potentially useful biomarkers. The gene codifying for Mammaglobin B (MGB-2) has been selected from our previous microarray analysis performed on 19 serous papillary epithelial ovarian cancers and its expression has been further investigated on multiple histological subtypes, both at mRNA and protein level. Since, to date, there is no information available on the prognostic significance of MGB-2 expression in cancer, the aim of this study was to determine its prognostic potential on survival in a large cohort of well-characterized EOC patients. Methods MGB-2 expression was evaluated by quantitative real time-PCR in fresh-frozen tissue biopsies and was validated by immunohistochemistry in matched formalin fixed-paraffin embedded tissue samples derived from a total of 106 EOC patients and 27 controls. MGB-2 expression was then associated with the clinicopathologic features of the tumors and was correlated with clinical outcome. Results MGB-2 expression was found significantly elevated in EOC compared to normal ovarian controls, both at mRNA and protein level. A good correlation was detected between MGB-2 expression data obtained by the two different techniques. MGB-2 expressing tumors were significantly associated with several clinicopathologic characteristics defining a less aggressive tumor behavior. Univariate survival analysis revealed a decreased risk for cancer-related death, recurrence and disease progression in MGB-2-expressing patients (p < 0.05). Moreover, multivariate analysis indicated that high expression levels of MGB-2 transcript (HR = 0.25, 95%, 0.08–0.75, p = 0.014) as well as positive immunostaining for the protein (HR = 0.41, 95%CI, 0.17–0.99, p = 0.048) had an independent prognostic value for disease-free survival. Conclusion This is the first report documenting that MGB-2 expression characterizes less aggressive forms of EOC and is correlated with a favorable outcome. These findings suggest that the determination of MGB-2, especially at molecular level, in EOC tissue obtained after primary surgery can provide additional prognostic information about the risk of recurrence.
Collapse
Affiliation(s)
- Renata A Tassi
- Division of Gynecologic Oncology, Department Materno Infantile e Tecnologie Biomediche, University of Brescia, Brescia, Italy.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Xu CS, Shao HY, Du B. Study on correlation of signal molecule genes and their receptor-associated genes with rat liver regeneration. Genome 2009; 52:505-23. [DOI: 10.1139/g09-022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
To investigate the effect of signal molecules and their receptor-associated genes on rat liver regeneration (LR) at the transcriptional level, the associated genes were originally obtained by retrieving the databases and related scientific publications; their expression profiles in rat LR were then checked using the Rat Genome 230 2.0 microarray. The LR-associated genes were identified by comparing gene expression difference between partial hepatectomy groups and operation-control groups. A total of 454 genes were proved to be LR related. The genes associated with the seven kinds of signal molecules (steroid hormones, fatty acid derivatives, protein and polypeptide hormones, amino acids and their derivatives, choline, cytokines, and gas signal molecules) were detected to be enriched in a cluster characterized by upregulated expression in LR. The number of genes related to the seven kinds of signal molecules was, in sequence, 63, 27, 100, 102, 16, 166, and 18. The 1027 frequencies of upregulation and 823 frequencies of downregulation in total as well as 42 types of different expression patterns suggest the complex and diverse gene expression changes in LR. It is presumed that signal molecules played an important role in metabolism, inflammation, cell proliferation, growth and differentiation, etc., during rat LR.
Collapse
Affiliation(s)
- Cun-Shuan Xu
- College of Life Science, Henan Normal University, Xinxiang (453007), Henan Province, People’s Republic of China
- Co-construction Key Laboratory for Cell Differentiation and Regulation, Xinxiang (453007), Henan Province, People’s Republic of China
| | - Heng-Yi Shao
- College of Life Science, Henan Normal University, Xinxiang (453007), Henan Province, People’s Republic of China
- Co-construction Key Laboratory for Cell Differentiation and Regulation, Xinxiang (453007), Henan Province, People’s Republic of China
| | - Bin Du
- College of Life Science, Henan Normal University, Xinxiang (453007), Henan Province, People’s Republic of China
- Co-construction Key Laboratory for Cell Differentiation and Regulation, Xinxiang (453007), Henan Province, People’s Republic of China
| |
Collapse
|
12
|
Filip AM, Klug J, Cayli S, Fröhlich S, Henke T, Lacher P, Eickhoff R, Bulau P, Linder M, Carlsson-Skwirut C, Leng L, Bucala R, Kraemer S, Bernhagen J, Meinhardt A. Ribosomal protein S19 interacts with macrophage migration inhibitory factor and attenuates its pro-inflammatory function. J Biol Chem 2009; 284:7977-85. [PMID: 19155217 PMCID: PMC2658091 DOI: 10.1074/jbc.m808620200] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2008] [Revised: 12/24/2008] [Indexed: 01/05/2023] Open
Abstract
Macrophage migration inhibitory factor (MIF) is a pleiotropic cytokine that has been implicated in the pathogenesis of inflammatory disorders such as infection, sepsis, and autoimmune disease. MIF exists preformed in cytoplasmic pools and exhibits an intrinsic tautomerase and oxidoreductase activity. MIF levels are elevated in the serum of animals and patients with infection or different inflammatory disorders. To elucidate how MIF actions are controlled, we searched for endogenous MIF-interacting proteins with the potential to interfere with key MIF functions. Using in vivo biotin-tagging and endogenous co-immunoprecipitation, the ribosomal protein S19 (RPS19) was identified as a novel MIF binding partner. Surface plasmon resonance and pulldown experiments with wild type and mutant MIF revealed a direct physical interaction of the two proteins (K(D) = 1.3 x 10(-6) m). As RPS19 is released in inflammatory lesions by apoptotic cells, we explored whether it affects MIF function and inhibits its binding to receptors CD74 and CXCR2. Low doses of RPS19 were found to strongly inhibit MIF-CD74 interaction. Furthermore, RPS19 significantly compromised CXCR2-dependent MIF-triggered adhesion of monocytes to endothelial cells under flow conditions. We, therefore, propose that RPS19 acts as an extracellular negative regulator of MIF.
Collapse
Affiliation(s)
- Ana-Maria Filip
- Department of Anatomy and Cell Biology, Unit of Reproductive Biology, Medical Clinic II, and Department of Biochemistry, Justus-Liebig-University of Giessen, Giessen D-35385, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Tassi RA, Bignotti E, Falchetti M, Calza S, Ravaggi A, Rossi E, Martinelli F, Bandiera E, Pecorelli S, Santin AD. Mammaglobin B expression in human endometrial cancer. Int J Gynecol Cancer 2008; 18:1090-6. [DOI: 10.1111/j.1525-1438.2007.01137.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Mammaglobin B (MGB-2) is an uteroglobin gene family member recently found highly differentially expressed in ovarian cancer by gene expression profiling. To evaluate its potential as a novel endometrial cancer biomarker, in this study we quantified and compared MGB-2 expression at messenger RNA and protein levels in endometrial tumors (endometrioid endometrial cancer [EEC]) with different grades of differentiation. MGB-2 expression was evaluated by real-time polymerase chain reaction (PCR) and immunohistochemistry (IHC) in fresh frozen biopsies and paraffin-embedded tissues derived from a total of 70 patients including 50 primary EEC and 20 normal endometria (NECs). High levels of MGB-2 gene expression were detected in 10 of 11 EEC G1 cases (91%), 16 of 17 EEC G2 cases (94%), and 6 of 22 EEC G3 cases (27%) by real-time PCR. In contrast, normal endometrial cells expressed low to negligible levels of MGB-2 by real-time PCR (P= 0.002 EEC vs NEC). Well- and moderately differentiated EECs overexpressed MGB-2 gene at significant higher levels when compared to NECs (P< 0.01). Pairwise differences between both G2 and G1 vs G3 cases for MGB-2 relative gene expression values were also statistically significant (G2 vs G3 P< 0.001, G1 vs G3 P= 0.016). MGB-2 protein expression was detected in 31 (86%) of 36 EEC and 0 of 5 atrophic NEC controls, while seven of eight (88%) of the proliferative/secretory/hyperplastic NECs focally expressed MGB-2 by IHC. MGB-2 is highly expressed in EEC, particularly in well- and moderately differentiated tumors, and may represent a novel molecular marker for EEC.
Collapse
|
14
|
Hong MH, Sun H, Jin CH, Chapman M, Hu J, Chang W, Burnett K, Rosen J, Negro-Vilar A, Miner JN. Cell-specific activation of the human skeletal alpha-actin by androgens. Endocrinology 2008; 149:1103-12. [PMID: 18063690 DOI: 10.1210/en.2007-0530] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Although it is evident that androgens increase muscle mass and strength, little is known about the critical molecular targets of androgens in skeletal muscle. In rodents, the skeletal alpha-actin gene is a tissue-specific gene expressed only in the levator ani and other skeletal muscles but not in the prostate or preputial gland, the well-known androgen target tissue. We identified tissue-specific androgen-regulated genes in the skeletal muscle in rats after oral administration of androgens and focused on androgen-dependent up-regulation of the skeletal alpha-actin gene. To investigate the mechanism of action, an in vitro system with various cell lines and a series of deletion mutants of the alpha-actin promoter were used. The human skeletal alpha-actin promoter was activated by androgens in the muscle cell line C2C12 but not in the liver, prostate, or breast cancer cell lines in which exogenous human androgen receptor is expressed. The sequence of the promoter is sufficient for cell-specific androgen response, providing a model for the tissue specificity demonstrated in vivo. Using a series of deletion mutants, the androgen response can be maintained using just the proximal promoter region. The importance of androgen regulation of this small portion of the human skeletal alpha-actin promoter was demonstrated by the correlation between muscle and the alpha-actin promoter activity for an array of selective androgen receptor modulators (SARMs), including an orally active SARM LGD2226. Taken together, the results suggest that the regulation of skeletal alpha-actin by androgens/SARMs may represent an important model system for understanding androgen anabolic action in the muscle.
Collapse
Affiliation(s)
- Mei Hua Hong
- Department of Research and Development, Ligand Pharmaceuticals Inc., 10275 Science Center Drive, San Diego, California 92121, USA.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Ellis PJI, Furlong RA, Conner SJ, Kirkman-Brown J, Afnan M, Barratt C, Griffin DK, Affara NA. Coordinated transcriptional regulation patterns associated with infertility phenotypes in men. J Med Genet 2007; 44:498-508. [PMID: 17496197 PMCID: PMC2597934 DOI: 10.1136/jmg.2007.049650] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2007] [Revised: 04/26/2007] [Accepted: 04/27/2007] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Microarray gene-expression profiling is a powerful tool for global analysis of the transcriptional consequences of disease phenotypes. Understanding the genetic correlates of particular pathological states is important for more accurate diagnosis and screening of patients, and thus for suggesting appropriate avenues of treatment. As yet, there has been little research describing gene-expression profiling of infertile and subfertile men, and thus the underlying transcriptional events involved in loss of spermatogenesis remain unclear. Here we present the results of an initial screen of 33 patients with differing spermatogenic phenotypes. METHODS Oligonucleotide array expression profiling was performed on testis biopsies for 33 patients presenting for testicular sperm extraction. Significantly regulated genes were selected using a mixed model analysis of variance. Principle components analysis and hierarchical clustering were used to interpret the resulting dataset with reference to the patient history, clinical findings and histological composition of the biopsies. RESULTS Striking patterns of coordinated gene expression were found. The most significant contains multiple germ cell-specific genes and corresponds to the degree of successful spermatogenesis in each patient, whereas a second pattern corresponds to inflammatory activity within the testis. Smaller-scale patterns were also observed, relating to unique features of the individual biopsies.
Collapse
Affiliation(s)
- Peter J I Ellis
- Mammalian Molecular Genetics Group, University of Cambridge Department of Pathology, Tennis Court Rd, Cambridge, UK
| | | | | | | | | | | | | | | |
Collapse
|
16
|
Lehen'kyi V, Flourakis M, Skryma R, Prevarskaya N. TRPV6 channel controls prostate cancer cell proliferation via Ca(2+)/NFAT-dependent pathways. Oncogene 2007; 26:7380-5. [PMID: 17533368 DOI: 10.1038/sj.onc.1210545] [Citation(s) in RCA: 186] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The transient receptor potential channel, subfamily V, member 6 (TRPV6), is strongly expressed in advanced prostate cancer and significantly correlates with the Gleason >7 grading, being undetectable in healthy and benign prostate tissues. However, the role of TRPV6 as a highly Ca(2+)-selective channel in prostate carcinogenesis remains poorly understood. Here, we report that TRPV6 is directly involved in the control of prostate cancer cell (LNCaP cell line) proliferation by decreasing: (i) proliferation rate; (ii) cell accumulation in the S-phase of cell cycle and (iii) proliferating cell nuclear antigen (PCNA) expression. We demonstrate that the Ca(2+) uptake into LNCaP cells is mediated by TRPV6, with the subsequent downstream activation of the nuclear factor of activated T-cell transcription factor (NFAT). TRPV6-mediated Ca(2+) entry is also involved in apoptosis resistance of LNCaP cells. Our results suggest that TRPV6 expression in LNCaP cells is regulated by androgen receptor, however, in a ligand-independent manner. We conclude that the upregulation of TRPV6 Ca(2+) channel in prostate cancer cells may represent a mechanism for maintaining a higher proliferation rate, increasing cell survival and apoptosis resistance as well.
Collapse
Affiliation(s)
- V Lehen'kyi
- Inserm, U-800, Equipe labellisée par la Ligue Nationale contre le cancer, Villeneuve d'Ascq, France
| | | | | | | |
Collapse
|
17
|
Moehren U, Papaioannou M, Reeb CA, Hong W, Baniahmad A. Alien interacts with the human androgen receptor and inhibits prostate cancer cell growth. Mol Endocrinol 2007; 21:1039-48. [PMID: 17356171 DOI: 10.1210/me.2006-0468] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Prostate cancer cell growth is initially androgen dependent. Androgen antagonists are used in prostate cancer therapy to inactivate the transcriptional activity of the human androgen receptor (hAR) and to inhibit the proliferation of prostate cancer. Here, we have characterized Alien with characteristics of a corepressor as a novel interacting factor for the antagonist bound hAR. Alien is recruited to hAR in the presence of the AR antagonist cyproterone acetate (CPA). The interaction of Alien with hAR is verified in vivo and in vitro by a modified mammalian two-hybrid system, coimmunoprecipitation, chromatin immunoprecipitation, and in vitro binding assays. In contrast to other nuclear receptors, Alien binds to the amino-terminus of hAR with the receptor SUMOylation (small ubiquitin modifier) sites being involved. Furthermore, cellular localization of Alien is changed towards a predominant nuclear localization upon treatment of prostate cancer cells with CPA. Notably, stable expression of Alien in LNCaP cells inhibits both endogenous prostate-specific antigen expression and proliferation of these cells in the presence of CPA but not in the presence of an AR agonist. These findings underline the importance of corepressors for inhibition of prostate cancer cell growth by androgen antagonists.
Collapse
Affiliation(s)
- Udo Moehren
- Department of Medicine, Institute of Human Genetics and Anthropology, Kollegiengasse 10, 07743 Jena, Germany
| | | | | | | | | |
Collapse
|
18
|
Zafrakas M, Petschke B, Donner A, Fritzsche F, Kristiansen G, Knüchel R, Dahl E. Expression analysis of mammaglobin A (SCGB2A2) and lipophilin B (SCGB1D2) in more than 300 human tumors and matching normal tissues reveals their co-expression in gynecologic malignancies. BMC Cancer 2006; 6:88. [PMID: 16603086 PMCID: PMC1513245 DOI: 10.1186/1471-2407-6-88] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2005] [Accepted: 04/09/2006] [Indexed: 11/10/2022] Open
Abstract
Background Mammaglobin A (SCGB2A2) and lipophilin B (SCGB1D2), two members of the secretoglobin superfamily, are known to be co-expressed in breast cancer, where their proteins form a covalent complex. Based on the relatively high tissue-specific expression pattern, it has been proposed that the mammaglobin A protein and/or its complex with lipophilin B could be used in breast cancer diagnosis and treatment. In view of these clinical implications, the aim of the present study was to analyze the expression of both genes in a large panel of human solid tumors (n = 309), corresponding normal tissues (n = 309) and cell lines (n = 11), in order to evaluate their tissue specific expression and co-expression pattern. Methods For gene and protein expression analyses, northern blot, dot blot hybridization of matched tumor/normal arrays (cancer profiling arrays), quantitative RT-PCR, non-radioisotopic RNA in situ hybridization and immunohistochemistry were used. Results Cancer profiling array data demonstrated that mammaglobin A and lipophilin B expression is not restricted to normal and malignant breast tissue. Both genes were abundantly expressed in tumors of the female genital tract, i.e. endometrial, ovarian and cervical cancer. In these four tissues the expression pattern of mammaglobin A and lipophilin B was highly concordant, with both genes being down-, up- or not regulated in the same tissue samples. In breast tissue, mammaglobin A expression was down-regulated in 49% and up-regulated in 12% of breast tumor specimens compared with matching normal tissues, while lipophilin B was down-regulated in 59% and up-regulated in 3% of cases. In endometrial tissue, expression of mammaglobin A and lipophilin B was clearly up-regulated in tumors (47% and 49% respectively). Both genes exhibited down-regulation in 22% of endometrial tumors. The only exceptions to this concordance of mammaglobin A/lipophilin B expression were normal and malignant tissues of prostate and kidney, where only lipophilin B was abundantly expressed and mammaglobin A was entirely absent. RNA in situ hybridization and immunohistochemistry confirmed expression of mammaglobin A on a cellular level in endometrial and cervical cancer and their corresponding normal tissues. Conclusion Altogether, these data suggest that expression of mammaglobin A and lipophilin B might be controlled in different tissues by the same regulatory transcriptional mechanisms. Diagnostic assays based on mammaglobin A expression and/or the mammaglobin A/lipophilin B complex appear to be less specific for breast cancer, but with a broader spectrum of potential applications, which includes gynecologic malignancies.
Collapse
Affiliation(s)
- Menelaos Zafrakas
- Institute of Pathology, University Hospital Aachen, RWTH Aachen, Pauwelsstrasse 30, 52074 Aachen, Germany
| | - Beate Petschke
- Department of Obstetrics and Gynecology, Charité University Hospital, Campus Virchow, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Andreas Donner
- Institute of Pathology, University Hospital Aachen, RWTH Aachen, Pauwelsstrasse 30, 52074 Aachen, Germany
| | - Florian Fritzsche
- Institute of Pathology, Charité, Universitätsmedizin Berlin, Schumannstr. 20/21, 10117 Berlin, Germany
| | - Glen Kristiansen
- Institute of Pathology, Charité, Universitätsmedizin Berlin, Schumannstr. 20/21, 10117 Berlin, Germany
| | - Ruth Knüchel
- Institute of Pathology, University Hospital Aachen, RWTH Aachen, Pauwelsstrasse 30, 52074 Aachen, Germany
| | - Edgar Dahl
- Institute of Pathology, University Hospital Aachen, RWTH Aachen, Pauwelsstrasse 30, 52074 Aachen, Germany
| |
Collapse
|
19
|
Stoeckelhuber M, Messmer EM, Schmidt C, Xiao F, Schubert C, Klug J. Immunohistochemical analysis of secretoglobin SCGB 2A1 expression in human ocular glands and tissues. Histochem Cell Biol 2006; 126:103-9. [PMID: 16395610 DOI: 10.1007/s00418-005-0137-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/06/2005] [Indexed: 10/25/2022]
Abstract
Human secretoglobin (SCGB) 2A1 (or lipophilin C, lacryglobin, mammaglobin B) is a small protein of unknown function that forms heterodimers with secretoglobin 1D1 (lipophilin A) in tears. SCGB 2A1 is homologous to mammaglobin (mammaglobin A) and the C3 component of prostatein, the major secretory protein of the rat ventral prostate. Androgen-dependent expression of SCGB 2A1 has been observed in the prostate. Besides identification of SCGB 2A1 in the tear proteome only its mRNA had been detected in the lacrimal gland. Here, we report expression of SCGB 2A1 in all ocular glands and in the keratinized stratified squamous epithelium of the eyelid as well as in the stratified epithelium of the conjunctiva and in the orbicularis oculi muscle. Almost all of these tissues are also known to express the androgen receptor. Therefore, we conclude that presence of the androgen signalling machinery could be the main general determinant of SCGB 2A1 expression. Implications of the presence in tear fluid of an androgen-regulated secretoglobin, which most likely binds hydrophobic ligands, for tear film lipid layer formation and function is discussed.
Collapse
Affiliation(s)
- Mechthild Stoeckelhuber
- Institute of Anatomy, Ludwig-Maximilians-University of Munich, Pettenkoferstrasse 11, 80336, Munich, Germany
| | | | | | | | | | | |
Collapse
|