1
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Maurya VK, Szwarc MM, Lonard DM, Kommagani R, Wu SP, O’Malley BW, DeMayo FJ, Lydon JP. Steroid receptor coactivator-2 drives epithelial reprogramming that enables murine embryo implantation. FASEB J 2023; 37:e23313. [PMID: 37962238 PMCID: PMC10655894 DOI: 10.1096/fj.202301581r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 10/19/2023] [Accepted: 11/01/2023] [Indexed: 11/15/2023]
Abstract
Although we have shown that steroid receptor coactivator-2 (SRC-2), a member of the p160/SRC family of transcriptional coregulators, is essential for decidualization of both human and murine endometrial stromal cells, SRC-2's role in the earlier stages of the implantation process have not been adequately addressed. Using a conditional SRC-2 knockout mouse (SRC-2d/d ) in timed natural pregnancy studies, we show that endometrial SRC-2 is required for embryo attachment and adherence to the luminal epithelium. Implantation failure is associated with the persistent expression of Mucin 1 and E-cadherin on the apical surface and basolateral adherens junctions of the SRC-2d/d luminal epithelium, respectively. These findings indicate that the SRC-2d/d luminal epithelium fails to exhibit a plasma membrane transformation (PMT) state known to be required for the development of uterine receptivity. Transcriptomics demonstrated that the expression of genes involved in steroid hormone control of uterine receptivity were significantly disrupted in the SRC-2d/d endometrium as well as genes that control epithelial tight junctional biology and the emergence of the epithelial mesenchymal transition state, with the latter sharing similar biological properties with PMT. Collectively, these findings uncover a new role for endometrial SRC-2 in the induction of the luminal epithelial PMT state, which is a prerequisite for the development of uterine receptivity and early pregnancy establishment.
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Affiliation(s)
- Vineet K. Maurya
- Department of Molecular and Cellular Biology, Center for Coregulator Research
| | - Maria M. Szwarc
- Department of Molecular and Cellular Biology, Center for Coregulator Research
| | - David M. Lonard
- Department of Molecular and Cellular Biology, Center for Coregulator Research
| | - Ramakrishna Kommagani
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas, USA
| | - San Pin Wu
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
| | - Bert W. O’Malley
- Department of Molecular and Cellular Biology, Center for Coregulator Research
| | - Francesco J. DeMayo
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
| | - John P. Lydon
- Department of Molecular and Cellular Biology, Center for Coregulator Research
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2
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Zeng X, Li S, Liu L, Cai S, Ye Q, Xue B, Wang X, Zhang S, Chen F, Cai C, Wang F, Zeng X. Role of functional fatty acids in modulation of reproductive potential in livestock. J Anim Sci Biotechnol 2023; 14:24. [PMID: 36788613 PMCID: PMC9926833 DOI: 10.1186/s40104-022-00818-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 12/04/2022] [Indexed: 02/16/2023] Open
Abstract
Fatty acids are not only widely known as energy sources, but also play important roles in many metabolic pathways. The significance of fatty acids in modulating the reproductive potential of livestock has received greater recognition in recent years. Functional fatty acids and their metabolites improve follicular development, oocyte maturation and embryo development, as well as endometrial receptivity and placental vascular development, through enhancing energy supply and precursors for the synthesis of their productive hormones, such as steroid hormones and prostaglandins. However, many studies are focused on the impacts of individual functional fatty acids in the reproductive cycle, lacking studies involved in deeper mechanisms and optimal fatty acid requirements for specific physiological stages. Therefore, an overall consideration of the combination and synergy of functional fatty acids and the establishment of optimal fatty acid requirement for specific stages is needed to improve reproductive potential in livestock.
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Affiliation(s)
- Xiangzhou Zeng
- grid.22935.3f0000 0004 0530 8290State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Center, China Agricultural University, 100193 Beijing, P. R. China ,Beijing Key Laboratory of Bio feed Additives, 100193 Beijing, P. R. China
| | - Siyu Li
- grid.22935.3f0000 0004 0530 8290State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Center, China Agricultural University, 100193 Beijing, P. R. China ,Beijing Key Laboratory of Bio feed Additives, 100193 Beijing, P. R. China
| | - Lu Liu
- grid.22935.3f0000 0004 0530 8290State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Center, China Agricultural University, 100193 Beijing, P. R. China ,Beijing Key Laboratory of Bio feed Additives, 100193 Beijing, P. R. China
| | - Shuang Cai
- grid.22935.3f0000 0004 0530 8290State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Center, China Agricultural University, 100193 Beijing, P. R. China ,Beijing Key Laboratory of Bio feed Additives, 100193 Beijing, P. R. China
| | - Qianhong Ye
- grid.35155.370000 0004 1790 4137State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Huazhong Agricultural University, 430070 Wuhan, Hubei China
| | - Bangxin Xue
- grid.22935.3f0000 0004 0530 8290State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Center, China Agricultural University, 100193 Beijing, P. R. China ,Beijing Key Laboratory of Bio feed Additives, 100193 Beijing, P. R. China
| | - Xinyu Wang
- grid.22935.3f0000 0004 0530 8290State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Center, China Agricultural University, 100193 Beijing, P. R. China ,Beijing Key Laboratory of Bio feed Additives, 100193 Beijing, P. R. China
| | - Shihai Zhang
- grid.20561.300000 0000 9546 5767Guangdong Provincial Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, 510642 Guangzhou, China
| | - Fang Chen
- grid.20561.300000 0000 9546 5767Guangdong Provincial Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, 510642 Guangzhou, China
| | - Chuanjiang Cai
- grid.144022.10000 0004 1760 4150College of Animal Science and Technology, Northwest A&F University, 712100 Yangling, Shaanxi China
| | - Fenglai Wang
- grid.22935.3f0000 0004 0530 8290State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Center, China Agricultural University, 100193 Beijing, P. R. China ,Beijing Key Laboratory of Bio feed Additives, 100193 Beijing, P. R. China
| | - Xiangfang Zeng
- State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Center, China Agricultural University, 100193, Beijing, P. R. China. .,Beijing Key Laboratory of Bio feed Additives, 100193, Beijing, P. R. China.
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3
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Yu X, Yi P, Panigrahi AK, Lumahan LEV, Lydon JP, Lonard DM, Lutdke SJ, Wang Z, O'Malley BW. Spatial definition of the human progesterone receptor-B transcriptional complex. iScience 2022; 25:105321. [PMID: 36325049 PMCID: PMC9618773 DOI: 10.1016/j.isci.2022.105321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/27/2022] [Accepted: 10/07/2022] [Indexed: 01/09/2023] Open
Abstract
We report the quaternary structure of core transcriptional complex for the full-length human progesterone receptor-B (PR-B) homodimer with primary coactivator steroid receptor coactivator-2 (SRC-2) and the secondary coactivator p300/CREB-binding protein (CBP). The PR-B homodimer engages one SRC-2 mainly through its activation function 1 (AF1) in N-terminus. SRC-2 is positioned between PR-B and p300 leaving space for direct interaction between PR-B and p300 through PR-B's C-terminal AF2 and its unique AF3. Direct AF3/p300 interaction provides long-desired structural insights into the known functional differences between PR-B and the PR-A isoform lacking AF3. We reveal the contributions of each AF and demonstrate their structural basis in forming the PR-B dimer interface and PR-B/coactivator complex. Comparison of the PR-B/coactivator complex with other steroid receptor (estrogen receptor and androgen receptor) complexes also shows that each receptor has its unique mechanism for recruiting coactivators due to the highly variable N-termini among receptors.
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Affiliation(s)
- Xinzhe Yu
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA.,Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Ping Yi
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA.,Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA.,Center for Nuclear Receptor and Cell Signaling, Department of Biology and Biochemistry, University of Houston, Houston, TX 77204, USA
| | - Anil K Panigrahi
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Lance Edward V Lumahan
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - John P Lydon
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - David M Lonard
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Steven J Lutdke
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA.,CryoEM/ET Core, Baylor College of Medicine, Houston, TX 77030, USA
| | - Zhao Wang
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA.,Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA.,CryoEM/ET Core, Baylor College of Medicine, Houston, TX 77030, USA.,Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Bert W O'Malley
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA.,Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA
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4
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Shi XQ, Chen G, Tan JQ, Li Z, Chen SM, He JH, Zhang L, Xu HX. Total alkaloid fraction of Leonurus japonicus Houtt. Promotes angiogenesis and wound healing through SRC/MEK/ERK signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2022; 295:115396. [PMID: 35598796 DOI: 10.1016/j.jep.2022.115396] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 05/12/2022] [Accepted: 05/16/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Leonurus japonicus Houtt., also known as motherwort, is a traditional Chinese medicine that was first identified in Shennong Bencao Jing, the first and essential pharmacy monograph in China. L. japonicus has been regarded as a good gynecological medicine since ancient times. It has been widely used in clinical settings for treatment of gynecological diseases and postnatal rehabilitation with good efficacy and low adverse effects. AIM OF THE STUDY The main purpose of this study was to determine the angiogenic and wound healing effects of total alkaloid fraction from L. japonicus Houtt. (TALH) in vivo and in vitro. In addition, the main bioactive components of total alkaloids were to be identified and analyzed in this study. MATERIALS AND METHODS First, the UHPLC/Q-TOF-MS method was used to identify and quantify the major components in the TALH extract. The wound healing activity was evaluated in vivo using a rat full-thickness cutaneous wound model. Histological study of wound healing in rat model was performed via immunohistochemistry and immunofluorescence. Cell proliferation was determined by MTT assay. Wound healing and transwell assays were used for detection of cell migration. The effect on tube formation was determined by tube formation assay in HUVECs. Western blot and RT-PCR were used to detect the expressions of relative proteins and genes respectively. Knock-down of SRC by siRNA was done to verify the crucial role of SRC in promotion of angiogenesis induced by TALH. RESULTS Seven characteristic peaks were recognized in the UHPLC/Q-TOF-MS spectrum, while four of the main components were quantified. The wound model in rats showed that treatment of TALH promoted wound healing by stimulating cellular proliferation and collagen deposition. In vitro experiments showed that co-treatment of TALH and VEGF increased cell proliferation, migration and tube formation in HUVECs. Mechanistic studies suggested that the co-treatment increased gene expressions of SRC, MEK1/2 and ERK1/2, as well as the phosphorylation levels of these proteins. Furthermore, the effect of co-treatment was attenuated after SRC knockdown, suggesting that SRC plays an important role in angiogenesis and wound healing induced by TALH and VEGF co-treatment. CONCLUSION Our results showed that TALH was one of the main active components of L. japonicus that promoted angiogenesis and wound healing by regulating the SRC/MEK/ERK pathway. Our study provided scientific basis for better clinical application of L. japonicas.
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Affiliation(s)
- Xiao-Qin Shi
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China; Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai, 201203, PR China
| | - Gan Chen
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China; Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai, 201203, PR China
| | - Jia-Qi Tan
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China; Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai, 201203, PR China
| | - Zhuo Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China; Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai, 201203, PR China
| | - Si-Min Chen
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China; Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai, 201203, PR China
| | - Jia-Hui He
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China; Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai, 201203, PR China
| | - Li Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China; Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai, 201203, PR China.
| | - Hong-Xi Xu
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
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5
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MacLean JA, Hayashi K. Progesterone Actions and Resistance in Gynecological Disorders. Cells 2022; 11:cells11040647. [PMID: 35203298 PMCID: PMC8870180 DOI: 10.3390/cells11040647] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/10/2022] [Accepted: 02/11/2022] [Indexed: 02/06/2023] Open
Abstract
Estrogen and progesterone and their signaling mechanisms are tightly regulated to maintain a normal menstrual cycle and to support a successful pregnancy. The imbalance of estrogen and progesterone disrupts their complex regulatory mechanisms, leading to estrogen dominance and progesterone resistance. Gynecological diseases are heavily associated with dysregulated steroid hormones and can induce chronic pelvic pain, dysmenorrhea, dyspareunia, heavy bleeding, and infertility, which substantially impact the quality of women’s lives. Because the menstrual cycle repeatably occurs during reproductive ages with dynamic changes and remodeling of reproductive-related tissues, these alterations can accumulate and induce chronic and recurrent conditions. This review focuses on faulty progesterone signaling mechanisms and cellular responses to progesterone in endometriosis, adenomyosis, leiomyoma (uterine fibroids), polycystic ovary syndrome (PCOS), and endometrial hyperplasia. We also summarize the association with gene mutations and steroid hormone regulation in disease progression as well as current hormonal therapies and the clinical consequences of progesterone resistance.
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6
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Insight on Polyunsaturated Fatty Acids in Endometrial Receptivity. Biomolecules 2021; 12:biom12010036. [PMID: 35053184 PMCID: PMC8773570 DOI: 10.3390/biom12010036] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/16/2021] [Accepted: 12/20/2021] [Indexed: 12/15/2022] Open
Abstract
Endometrial receptivity plays a crucial role in fertilization as well as pregnancy outcome in patients faced with fertility challenges. The optimization of endometrial receptivity may help with normal implantation of the embryo, and endometrial receptivity may be affected by numerous factors. Recently, the role of lipids in pregnancy has been increasingly recognized. Fatty acids and their metabolites may be involved in all stages of pregnancy and play a role in supporting cell proliferation and development, participating in cell signaling and regulating cell function. Polyunsaturated fatty acids, in particular, are essential fatty acids for the human body that can affect the receptivity of the endometrium through in a variety of methods, such as producing prostaglandins, estrogen and progesterone, among others. Additionally, polyunsaturated fatty acids are also involved in immunity and the regulation of endometrial decidualization. Fatty acids are essential for fetal placental growth and development. The interrelationship of polyunsaturated fatty acids with these substances and how they may affect endometrial receptivity will be reviewed in this article.
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7
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Rusidzé M, Adlanmérini M, Chantalat E, Raymond-Letron I, Cayre S, Arnal JF, Deugnier MA, Lenfant F. Estrogen receptor-α signaling in post-natal mammary development and breast cancers. Cell Mol Life Sci 2021; 78:5681-5705. [PMID: 34156490 PMCID: PMC8316234 DOI: 10.1007/s00018-021-03860-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 05/12/2021] [Accepted: 05/19/2021] [Indexed: 12/16/2022]
Abstract
17β-estradiol controls post-natal mammary gland development and exerts its effects through Estrogen Receptor ERα, a member of the nuclear receptor family. ERα is also critical for breast cancer progression and remains a central therapeutic target for hormone-dependent breast cancers. In this review, we summarize the current understanding of the complex ERα signaling pathways that involve either classical nuclear “genomic” or membrane “non-genomic” actions and regulate in concert with other hormones the different stages of mammary development. We describe the cellular and molecular features of the luminal cell lineage expressing ERα and provide an overview of the transgenic mouse models impacting ERα signaling, highlighting the pivotal role of ERα in mammary gland morphogenesis and function and its implication in the tumorigenic processes. Finally, we describe the main features of the ERα-positive luminal breast cancers and their modeling in mice.
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Affiliation(s)
- Mariam Rusidzé
- INSERM U1297, Institut Des Maladies Métaboliques et Cardiovasculaires, Université de Toulouse - UPS, CHU, Toulouse, France
| | - Marine Adlanmérini
- INSERM U1297, Institut Des Maladies Métaboliques et Cardiovasculaires, Université de Toulouse - UPS, CHU, Toulouse, France
| | - Elodie Chantalat
- INSERM U1297, Institut Des Maladies Métaboliques et Cardiovasculaires, Université de Toulouse - UPS, CHU, Toulouse, France
| | - I Raymond-Letron
- LabHPEC et Institut RESTORE, Université de Toulouse, CNRS U-5070, EFS, ENVT, Inserm U1301, Toulouse, France
| | - Surya Cayre
- Department of Cell Biology and Cancer, Institut Curie, PSL Research University, Sorbonne University, CNRS UMR144, Paris, France
| | - Jean-François Arnal
- INSERM U1297, Institut Des Maladies Métaboliques et Cardiovasculaires, Université de Toulouse - UPS, CHU, Toulouse, France
| | - Marie-Ange Deugnier
- Department of Cell Biology and Cancer, Institut Curie, PSL Research University, Sorbonne University, CNRS UMR144, Paris, France
| | - Françoise Lenfant
- INSERM U1297, Institut Des Maladies Métaboliques et Cardiovasculaires, Université de Toulouse - UPS, CHU, Toulouse, France.
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8
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Maurya VK, DeMayo FJ, Lydon JP. Illuminating the "Black Box" of Progesterone-Dependent Embryo Implantation Using Engineered Mice. Front Cell Dev Biol 2021; 9:640907. [PMID: 33898429 PMCID: PMC8058370 DOI: 10.3389/fcell.2021.640907] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Accepted: 03/11/2021] [Indexed: 02/04/2023] Open
Abstract
Synchrony between progesterone-driven endometrial receptivity and the arrival of a euploid blastocyst is essential for embryo implantation, a prerequisite event in the establishment of a successful pregnancy. Advancement of embryo implantation within the uterus also requires stromal fibroblasts of the endometrium to transform into epithelioid decidual cells, a progesterone-dependent cellular transformation process termed decidualization. Although progesterone is indispensable for these cellular processes, the molecular underpinnings are not fully understood. Because human studies are restricted, much of our fundamental understanding of progesterone signaling in endometrial periimplantation biology comes from in vitro and in vivo experimental systems. In this review, we focus on the tremendous progress attained with the use of engineered mouse models together with high throughput genome-scale analysis in disclosing key signals, pathways and networks that are required for normal endometrial responses to progesterone during the periimplantation period. Many molecular mediators and modifiers of the progesterone response are implicated in cross talk signaling between epithelial and stromal cells of the endometrium, an intercellular communication system that is critical for the ordered spatiotemporal control of embryo invasion within the maternal compartment. Accordingly, derailment of these signaling systems is causally linked with infertility, early embryo miscarriage and gestational complications that symptomatically manifest later in pregnancy. Such aberrant progesterone molecular responses also contribute to endometrial pathologies such as endometriosis, endometrial hyperplasia and cancer. Therefore, our review makes the case that further identification and functional analysis of key molecular mediators and modifiers of the endometrial response to progesterone will not only provide much-needed molecular insight into the early endometrial cellular changes that promote pregnancy establishment but lend credible hope for the development of more effective mechanism-based molecular diagnostics and precision therapies in the clinical management of female infertility, subfertility and a subset of gynecological morbidities.
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Affiliation(s)
- Vineet K Maurya
- Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, United States
| | - Francesco J DeMayo
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, Durham, NC, United States
| | - John P Lydon
- Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, United States
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9
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Marquardt RM, Lee K, Kim TH, Lee B, DeMayo FJ, Jeong JW. Interleukin-13 receptor subunit alpha-2 is a target of progesterone receptor and steroid receptor coactivator-1 in the mouse uterus†. Biol Reprod 2020; 103:760-768. [PMID: 32558878 DOI: 10.1093/biolre/ioaa110] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 05/21/2020] [Indexed: 12/14/2022] Open
Abstract
The endometrium, composed of epithelial and stromal cell compartments, is tightly regulated by the ovarian steroid hormones estrogen (E2) and progesterone (P4) during early pregnancy. Through the progesterone receptor (PGR), steroid receptor coactivators, and other transcriptional coregulators, progesterone inhibits E2-induced cell proliferation and induces the differentiation of stromal cells in a process called decidualization to promote endometrial receptivity. Although interleukin-13 receptor subunit alpha-2 (Il13ra2) is expressed in the human and mouse endometrium, its potential role in the steroid hormone regulation of the endometrium has not been thoroughly examined. In this study, we employed PGR knockout mice and steroid receptor coactivator-1 knockout mice (SRC-1-/-) to profile the expression of Il13ra2 in the murine endometrium and determine the role of these transcriptional regulators in the hormone-responsiveness of Il13ra2 expression. Furthermore, we utilized a well-established decidualization-inducing steroidogenic cocktail and a siRNA-based knockdown of IL13RA2 to determine the importance of IL13RA2 in the decidualization of primary human endometrial stromal cells. Our findings demonstrate that Il13ra2 is expressed in the subepithelial stroma of the murine endometrium in response to ovarian steroid hormones and during early pregnancy in a PGR- and SRC-1-dependent manner. Furthermore, we show that knockdown of IL13RA2 before in vitro decidualization of primary human endometrial stromal cells partially compromises the full decidualization response. We conclude that Il13ra2 is a downstream target of progesterone through PGR and SRC-1 and plays a role in mediating the stromal action of ovarian steroid hormones.
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Affiliation(s)
- Ryan M Marquardt
- Department of Obstetrics, Gynecology & Reproductive Biology, Michigan State University, College of Human Medicine, Grand Rapids, MI, USA.,Cell and Molecular Biology Program, Michigan State University, East Lansing, MI, USA
| | - Kevin Lee
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA
| | - Tae Hoon Kim
- Department of Obstetrics, Gynecology & Reproductive Biology, Michigan State University, College of Human Medicine, Grand Rapids, MI, USA
| | - Brandon Lee
- Department of Obstetrics, Gynecology & Reproductive Biology, Michigan State University, College of Human Medicine, Grand Rapids, MI, USA.,Program of Neuroscience, Bowdoin College, Brunswick, ME, USA
| | - Francesco J DeMayo
- Reproductive and Development Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Jae-Wook Jeong
- Department of Obstetrics, Gynecology & Reproductive Biology, Michigan State University, College of Human Medicine, Grand Rapids, MI, USA
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10
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O'Malley BW. SRC-2 Coactivator: a role in human metabolic evolution and disease. Mol Med 2020; 26:45. [PMID: 32410572 PMCID: PMC7227291 DOI: 10.1186/s10020-020-00168-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 04/16/2020] [Indexed: 11/10/2022] Open
Abstract
The large family of transcriptional coactivators originated with the cloning of the subfamily of Steroid Receptor Coactivators (SRC-1,2,3). These 3 coactivators serve as primary 'master genes' to direct the coordinate transcription of multiple genes required for physiological goals in cells, specifically, carbohydrate, lipid, or anabolic growth metabolisms. SRC-2 is of special interest in terms of lipid metabolism and energy accrual and is the topic of a collection of our research discoveries and publications described in this Perspective.
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Affiliation(s)
- Bert W O'Malley
- Department of Molecular and Cellular Biology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA.
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11
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Uterine Tumor Resembling Ovarian Sex Cord Tumor: A Distinct Entity Characterized by Recurrent NCOA2/3 Gene Fusions. Am J Surg Pathol 2019; 43:178-186. [PMID: 30273195 DOI: 10.1097/pas.0000000000001153] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Uterine tumor resembling ovarian sex-cord tumor (UTROSCT) is a rare and distinctive neoplasm of unclear histogenesis, and uncertain malignant potential. These neoplasms morphologically resemble sex-cord stromal tumors of the ovary, and possess a polyphenotypic immunophenotype. Their molecular pathogenesis has yet to be elucidated; notably, however, tumors lack alterations found in other uterine tumors bearing sex-cord-like differentiation, such as endometrial stromal sarcoma. Following identification of an index patient with an ESR1-NCOA3 fusion gene by RNA-sequencing, we undertook a retrospective review for additional cases of UTROSCT. We identified a total of 4 patients, with an average age of 53 years (range, 38 to 68 y). RNA-sequencing was performed in all cases, revealing an ESR1-NCOA3 fusion in 2 cases and one case each with related ESR1-NCOA2 and GREB1-NCOA2 fusions. Each of the tumors showed histologic and an immunophenotype features within the previously reported spectrum of UTROSCT; interestingly, one case contained prominent spindle cell fascicles and another was largely comprised of sheets of small round cells. Our results demonstrate UTROSCT are defined by recurrent fusions involving NCOA2 or NCOA3, a finding that is directly amenable to diagnostic evaluation. This study confirms UTROSCT is molecularly distinct from endometrial stromal sarcoma, and raises intriguing new questions into the pathogenesis of these neoplasms and possible relationship with other NCOA fusion-positive uterine tumors.
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12
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Marquardt RM, Kim TH, Shin JH, Jeong JW. Progesterone and Estrogen Signaling in the Endometrium: What Goes Wrong in Endometriosis? Int J Mol Sci 2019; 20:E3822. [PMID: 31387263 PMCID: PMC6695957 DOI: 10.3390/ijms20153822] [Citation(s) in RCA: 202] [Impact Index Per Article: 40.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 07/30/2019] [Accepted: 08/01/2019] [Indexed: 02/07/2023] Open
Abstract
In the healthy endometrium, progesterone and estrogen signaling coordinate in a tightly regulated, dynamic interplay to drive a normal menstrual cycle and promote an embryo-receptive state to allow implantation during the window of receptivity. It is well-established that progesterone and estrogen act primarily through their cognate receptors to set off cascades of signaling pathways and enact large-scale gene expression programs. In endometriosis, when endometrial tissue grows outside the uterine cavity, progesterone and estrogen signaling are disrupted, commonly resulting in progesterone resistance and estrogen dominance. This hormone imbalance leads to heightened inflammation and may also increase the pelvic pain of the disease and decrease endometrial receptivity to embryo implantation. This review focuses on the molecular mechanisms governing progesterone and estrogen signaling supporting endometrial function and how they become dysregulated in endometriosis. Understanding how these mechanisms contribute to the pelvic pain and infertility associated with endometriosis will open new avenues of targeted medical therapies to give relief to the millions of women suffering its effects.
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Affiliation(s)
- Ryan M Marquardt
- Department of Obstetrics, Gynecology & Reproductive Biology, Michigan State University, Grand Rapids, MI 49503, USA
- Cell and Molecular Biology Program, Michigan State University, East Lansing, MI 48824, USA
| | - Tae Hoon Kim
- Department of Obstetrics, Gynecology & Reproductive Biology, Michigan State University, Grand Rapids, MI 49503, USA
| | - Jung-Ho Shin
- Division of Reproductive Endocrinology, Department of Obstetrics and Gynecology, Guro Hospital, Korea University Medical Center, Seoul 08318, Korea
| | - Jae-Wook Jeong
- Department of Obstetrics, Gynecology & Reproductive Biology, Michigan State University, Grand Rapids, MI 49503, USA.
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13
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Mendelson CR, Gao L, Montalbano AP. Multifactorial Regulation of Myometrial Contractility During Pregnancy and Parturition. Front Endocrinol (Lausanne) 2019; 10:714. [PMID: 31708868 PMCID: PMC6823183 DOI: 10.3389/fendo.2019.00714] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 10/03/2019] [Indexed: 12/30/2022] Open
Abstract
The steroid hormones progesterone (P4) and estradiol-17β (E2), produced by the placenta in humans and the ovaries in rodents, serve crucial roles in the maintenance of pregnancy, and the initiation of parturition. Because of their critical importance for species survival, the mechanisms whereby P4 and its nuclear receptor (PR) maintain myometrial quiescence during pregnancy, and for the decline in P4/PR and increase in E2/estrogen receptor (ER) function leading to parturition, are multifaceted, cooperative, and redundant. These actions of P4/PR include: (1) PR interaction with proinflammatory transcription factors, nuclear factor κB (NF-κB), and activating protein 1 (AP-1) bound to promoters of proinflammatory and contractile/contraction-associated protein (CAP) genes and recruitment of corepressors to inhibit NF-κB and AP-1 activation of gene expression; (2) upregulation of inhibitors of proinflammatory transcription factor activation (IκBα, MKP-1); (3) induction of transcriptional repressors of CAP genes (e.g., ZEB1). In rodents and most other mammals, circulating maternal P4 levels remain elevated throughout most of pregnancy and decline precipitously near term. By contrast, in humans, circulating P4 levels and myometrial PR levels remain elevated throughout pregnancy and into labor. However, even in rodents, wherein P4 levels decline near term, P4 levels remain higher than the Kd for PR binding. Thus, parturition is initiated in all species by a series of molecular events that antagonize the P4/PR maintenance of uterine quiescence. These events include: direct interaction of inflammatory transcription factors (e.g., NF-κB, AP-1) with PR; increased expression of P4 metabolizing enzymes; increased expression of truncated/inhibitory PR isoforms; altered expression of PR coactivators and corepressors. This article will review various mechanisms whereby P4 acting through PR isoforms maintains myometrial quiescence during pregnancy as well as those that underlie the decline in PR function leading to labor. The roles of P4- and E2-regulated miRNAs in the regulation and integration of these mechanisms will also be considered.
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14
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Szwarc MM, Hai L, Gibbons WE, White LD, Mo Q, Kommagani R, Lanz RB, DeMayo FJ, O’Malley BW, Lydon JP. Retinoid signaling controlled by SRC-2 in decidualization revealed by transcriptomics. Reproduction 2018; 156:387-395. [PMID: 30325183 PMCID: PMC6208442 DOI: 10.1530/rep-18-0282] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Establishment of a successful pregnancy requires not only implantation of a healthy embryo into a receptive uterus but also progesterone receptor (PGR)-dependent transformation of endometrial stromal cells (ESCs) into specialized decidual cells. Decidual cells support the developing embryo and are critical for placentation. We have previously shown that a known transcriptional coregulator of the PGR, steroid receptor coactivator-2 (SRC-2), is a critical driver of endometrial decidualization in both human and mouse endometrium. However, the full spectrum of genes transcriptionally controlled by SRC-2 in decidualizing ESCs has not been identified. Therefore, using an RNA- and chromatin immunoprecipitation-sequencing approach, we have identified the transcriptome of decidualizing human ESCs (hESCs) that requires SRC-2. We revealed that the majority of hESC genes regulated by SRC-2 are associated with decidualization. Over 50% of SRC-2-regulated genes are also controlled by the PGR. While ontology analysis showed that SRC-2-dependent genes are functionally linked to signaling processes known to underpin hESC decidualization, cell membrane processes were significantly enriched in this analysis. Follow-up studies showed that retinoid signaling is dependent on SRC-2 during hESC decidualization. Specifically, SRC-2 is required for full induction of the retinol transporter, stimulated by retinoic acid 6 (STRA6), which is essential for hESC decidualization. Together our findings show that a critical subset of genes transcriptionally reprogramed by PGR during hESC decidualization requires SRC-2. Among the multiple genes, pathways and networks that are dependent on SRC-2 during hESC decidualization, first-line analysis supports a critical role for this coregulator in maintaining retinoid signaling during progesterone-driven decidualization.
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Affiliation(s)
- Maria M. Szwarc
- Department of Molecular & Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
| | - Lan Hai
- Department of Molecular & Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
| | - William E. Gibbons
- Department of Obstetrics & Gynecology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
| | - Lisa D. White
- Genomic & RNA Profiling Core Facility, Departments of Molecular & Human Genetics and Molecular & Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
| | - Qianxing Mo
- Department of Medicine and Dan L. Duncan Cancer Center, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
| | - Ramakrishna Kommagani
- Department of Obstetrics & Gynecology, Washington University School of Medicine, St. Louis, MO, 63110
| | - Rainer B. Lanz
- Department of Molecular & Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
| | - Francesco J. DeMayo
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, 27709
| | - Bert W. O’Malley
- Department of Molecular & Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
| | - John P. Lydon
- Department of Molecular & Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
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15
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Namiki T, Ito J, Kashiwazaki N. Molecular mechanisms of embryonic implantation in mammals: Lessons from the gene manipulation of mice. Reprod Med Biol 2018; 17:331-342. [PMID: 30377389 PMCID: PMC6194304 DOI: 10.1002/rmb2.12103] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 03/22/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Human infertility has become a serious and social issue all over the world, especially in developed countries. Numerous types of assisted reproductive technology have been developed and are widely used to treat infertility. However, pregnancy outcomes require further improvement. It is essential to understand the cross-talk between the uterus (mother) and the embryo (fetus) in pregnancy, which is a very complicated event. METHODS The mammalian uterus requires many physiological and morphological changes for pregnancy-associated events, including implantation, decidualization, placentation, and parturition, to occur. Here is discussed recent advances in the knowledge of the molecular mechanisms underlying these reproductive events - in particular, embryonic implantation and decidualization - based on original and review articles. MAIN FINDINGS RESULTS In mice, embryonic implantation and decidualization are regulated by two steroid hormones: estrogen and progesterone. Along with these hormones, cytokines, cell-cycle regulators, growth factors, and transcription factors have essential roles in implantation and decidualization in mice. CONCLUSION Recent studies using the gene manipulation of mice have given considerable insight into the molecular mechanisms underlying embryonic implantation and decidualization. However, as most of the findings are based on mice, comparative research using different mammalian species will be useful for a better understanding of the species-dependent differences that are associated with reproductive events, including embryonic implantation.
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Affiliation(s)
- Takafumi Namiki
- Laboratory of Animal ReproductionGraduate School of Veterinary ScienceAzabu UniversitySagamiharaJapan
| | - Junya Ito
- Laboratory of Animal ReproductionGraduate School of Veterinary ScienceAzabu UniversitySagamiharaJapan
- School of Veterinary MedicineAzabu UniversitySagamiharaJapan
| | - Naomi Kashiwazaki
- Laboratory of Animal ReproductionGraduate School of Veterinary ScienceAzabu UniversitySagamiharaJapan
- School of Veterinary MedicineAzabu UniversitySagamiharaJapan
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16
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Steroid Receptor Coactivator-2 Controls the Pentose Phosphate Pathway through RPIA in Human Endometrial Cancer Cells. Sci Rep 2018; 8:13134. [PMID: 30177747 PMCID: PMC6120906 DOI: 10.1038/s41598-018-31372-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 08/17/2018] [Indexed: 12/13/2022] Open
Abstract
Steroid receptor coactivator-2 (SRC-2) is a transcriptional coregulator that modulates the activity of many transcription factors. Levels of SRC-2 are elevated in endometrial biopsies from polycystic ovary syndrome patients, a population predisposed to endometrial cancer (EC). Increased expression of SRC-2 is also detected in neoplastic endometrium suggesting a causal link between elevated SRC-2 expression and the emergence of endometrial disorders that can lead to cancer. Here, we reveal that SRC-2 knockdown reduces EC cell proliferation and anchorage-independence. Additionally, SRC-2 is required to maintain cellular glycolytic capacity and oxidative phosphorylation, processes essential for EC cell proliferation. Importantly, SRC-2 is critical for the normal performance of the pentose phosphate pathway (PPP). Perturbation of the PPP due to loss of SRC-2 expression may result from the depletion of ribose-5-P isomerase (RPIA), a key enzyme of the PPP. As with SRC-2, RPIA knockdown reduces EC cell proliferation, which is accompanied by a decrease in glycolytic capacity and oxidative phosphorylation. Glucose metabolite tracking experiments confirmed that knockdown of SRC-2 and RPIA downregulates the metabolic rate of both glycolysis and the PPP, highlighting a novel regulatory cross-talk between glycolysis and the PPP modulated by SRC-2.
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17
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Hu M, Zhang Y, Feng J, Xu X, Zhang J, Zhao W, Guo X, Li J, Vestin E, Cui P, Li X, Wu XK, Brännström M, Shao LR, Billig H. Uterine progesterone signaling is a target for metformin therapy in PCOS-like rats. J Endocrinol 2018; 237:123-137. [PMID: 29535146 DOI: 10.1530/joe-18-0086] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 03/13/2018] [Indexed: 02/06/2023]
Abstract
Impaired progesterone (P4) signaling is linked to endometrial dysfunction and infertility in women with polycystic ovary syndrome (PCOS). Here, we report for the first time that elevated expression of progesterone receptor (PGR) isoforms A and B parallels increased estrogen receptor (ER) expression in PCOS-like rat uteri. The aberrant PGR-targeted gene expression in PCOS-like rats before and after implantation overlaps with dysregulated expression of Fkbp52 and Ncoa2, two genes that contribute to the development of uterine P4 resistance. In vivo and in vitro studies of the effects of metformin on the regulation of the uterine P4 signaling pathway under PCOS conditions showed that metformin directly inhibits the expression of PGR and ER along with the regulation of several genes that are targeted dependently or independently of PGR-mediated uterine implantation. Functionally, metformin treatment corrected the abnormal expression of cell-specific PGR and ER and some PGR-target genes in PCOS-like rats with implantation. Additionally, we documented how metformin contributes to the regulation of the PGR-associated MAPK/ERK/p38 signaling pathway in the PCOS-like rat uterus. Our data provide novel insights into how metformin therapy regulates uterine P4 signaling molecules under PCOS conditions.
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Affiliation(s)
- Min Hu
- Department of Physiology/EndocrinologyInstitute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Traditional Chinese MedicineThe First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yuehui Zhang
- Department of Physiology/EndocrinologyInstitute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Obstetrics and GynecologyKey Laboratory and Unit of Infertility in Chinese Medicine, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Jiaxing Feng
- Department of Obstetrics and GynecologyKey Laboratory and Unit of Infertility in Chinese Medicine, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xue Xu
- Department of Obstetrics and GynecologyKey Laboratory and Unit of Infertility in Chinese Medicine, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Jiao Zhang
- Department of Acupuncture and MoxibustionSecond Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Wei Zhao
- Department of Obstetrics and GynecologyKey Laboratory and Unit of Infertility in Chinese Medicine, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xiaozhu Guo
- Department of Obstetrics and GynecologyKey Laboratory and Unit of Infertility in Chinese Medicine, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Juan Li
- Department of Physiology/EndocrinologyInstitute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Traditional Chinese MedicineThe First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Edvin Vestin
- Department of Physiology/EndocrinologyInstitute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Peng Cui
- Department of Physiology/EndocrinologyInstitute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Integrative Medicine and NeurobiologyState Key Lab of Medical Neurobiology, Shanghai Medical College and Institute of Acupuncture Research (WHO Collaborating Center for Traditional Medicine), Institute of Brain Science, Fudan University, Shanghai, China
- Institute of Integrative Medicine of Fudan UniversityShanghai, China
| | - Xin Li
- Department of Physiology/EndocrinologyInstitute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Gynecology Obstetrics and GynecologyHospital of Fudan University, Shanghai, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related DiseasesShanghai, China
| | - Xiao-Ke Wu
- Department of Obstetrics and GynecologyKey Laboratory and Unit of Infertility in Chinese Medicine, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Mats Brännström
- Department of Obstetrics and GynecologySahlgrenska University Hospital, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Linus R Shao
- Department of Physiology/EndocrinologyInstitute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Håkan Billig
- Department of Physiology/EndocrinologyInstitute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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18
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Gershon E, Hadas R, Elbaz M, Booker E, Muchnik M, Kleinjan-Elazary A, Karasenti S, Genin O, Cinnamon Y, Gray PC. Identification of Trophectoderm-Derived Cripto as an Essential Mediator of Embryo Implantation. Endocrinology 2018; 159:1793-1807. [PMID: 29506220 DOI: 10.1210/en.2017-03039] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 02/17/2018] [Indexed: 01/09/2023]
Abstract
Cripto-1 (TDGF1) is a multifunctional signaling factor that stimulates cellular effects, including proliferation, migration, survival, epithelial-to-mesenchymal transition, and angiogenesis, to regulate embryogenesis, tissue homeostasis, and tumorigenesis. Those cell behaviors are also associated with implantation of the embryo into the uterine wall, and this led us to investigate the role of embryo-derived Cripto in embryo attachment and implantation. In this study, we show that Cripto and its signaling mediator GRP78 are uniquely localized to embryo implantation sites. We knocked down Cripto expression specifically in trophoblast cells and found that this resulted in a corresponding decrease in the levels of its downstream signaling mediators, phosphorylated (phospho-)SMAD2, phospho-SRC, phospho-extracellular signal-regulated kinase, and phospho-AKT, which are also known mediators of embryo implantation. We then transplanted Cripto knockdown and control embryos into uteri of pseudopregnant female mice and found that embryos with Cripto-depleted trophoblast cells had dramatically impaired capacity to attach to the uterine wall when compared with controls. This loss of appropriate embryo attachment following Cripto knockdown in trophoblast cells was associated with abnormally enlarged implantation sites that were almost completely devoid of microvessels. A role for Cripto in embryo implantation was further supported by our demonstration that attachment of trophoblast-derived spheroids to endometrial cells in vitro was stimulated by Cripto treatment and diminished by treatment with either of two mechanistically distinct Cripto blocking agents. Collectively, our findings identify Cripto as a novel and critical embryo attachment factor and suggest that modulation of Cripto signaling may have significant therapeutic potential for the treatment of infertility and other related disorders.
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Affiliation(s)
- Eran Gershon
- Department of Ruminant Science, Agricultural Research Organization, Rishon LeZion, Israel
| | - Ron Hadas
- Department of Biological Regulation, the Weizmann Institute of Science, Rehovot, Israel
| | - Michal Elbaz
- Department of Ruminant Science, Agricultural Research Organization, Rishon LeZion, Israel
| | - Evan Booker
- Clayton Foundation Laboratories for Peptide Biology, Salk Institute for Biological Studies, La Jolla, California
| | - Moran Muchnik
- Department of Ruminant Science, Agricultural Research Organization, Rishon LeZion, Israel
| | - Alona Kleinjan-Elazary
- Department of Ruminant Science, Agricultural Research Organization, Rishon LeZion, Israel
| | - Sharon Karasenti
- Department of Ruminant Science, Agricultural Research Organization, Rishon LeZion, Israel
| | - Olga Genin
- Department of Poultry and Aquaculture Science, Agricultural Research Organization, Rishon LeZion, Israel
| | - Yuval Cinnamon
- Department of Poultry and Aquaculture Science, Agricultural Research Organization, Rishon LeZion, Israel
| | - Peter C Gray
- Clayton Foundation Laboratories for Peptide Biology, Salk Institute for Biological Studies, La Jolla, California
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19
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De Amicis F, Guido C, Santoro M, Giordano F, Donà A, Rizza P, Pellegrino M, Perrotta I, Bonofiglio D, Sisci D, Panno ML, Tramontano D, Aquila S, Andò S. Ligand activated progesterone receptor B drives autophagy-senescence transition through a Beclin-1/Bcl-2 dependent mechanism in human breast cancer cells. Oncotarget 2018; 7:57955-57969. [PMID: 27462784 PMCID: PMC5295403 DOI: 10.18632/oncotarget.10799] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 07/09/2016] [Indexed: 12/21/2022] Open
Abstract
Loss of progesterone-receptors (PR) expression is associated with breast cancer progression. Herein we provide evidence that OHPg/PR-B through Beclin-1 evoke autophagy-senescence transition, in breast cancer cells. Specifically, OHPg increases Beclin-1 expression through a transcriptional mechanism due to the occupancy of Beclin-1 promoter by PR-B, together with the transcriptional coactivator SRC-2. This complex binds at a canonical half progesterone responsive element, which is fundamental for OHPg effects, as shown by site-directed mutagenesis. Beside, OHPg via non-genomic action rapidly activates JNK, which phosphorylates Bcl-2, producing the functional release from Beclin-1 interaction. This is not linked to an efficient autophagic flux, since p62 levels, marker of degradation via lysosomes, were not reduced after sustained OHPg stimulus. Instead, the cell cycle inhibitor p27 was induced, together with an irreversible G1 arrest, hallmark of cellular senescence. Specifically the increase of senescence-associated β-galactosidase activity was blocked by Bcl-2 siRNA but also by Beclin-1 siRNA. Collectively these findings support the importance of PR-B expression in breast cancer cells, thus targeting PR-B may be a useful strategy to provide additional approaches to existing therapies for breast cancer patients.
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Affiliation(s)
- Francesca De Amicis
- Centro Sanitario, University of Calabria, Rende, Italy.,Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
| | - Carmela Guido
- Centro Sanitario, University of Calabria, Rende, Italy.,Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
| | - Marta Santoro
- Centro Sanitario, University of Calabria, Rende, Italy
| | - Francesca Giordano
- Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
| | - Ada Donà
- Centro Sanitario, University of Calabria, Rende, Italy.,Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
| | - Pietro Rizza
- Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
| | - Michele Pellegrino
- Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
| | | | - Daniela Bonofiglio
- Centro Sanitario, University of Calabria, Rende, Italy.,Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
| | - Diego Sisci
- Centro Sanitario, University of Calabria, Rende, Italy.,Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
| | - Maria Luisa Panno
- Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
| | - Donatella Tramontano
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples "Federico II", Naples, Italy
| | - Saveria Aquila
- Centro Sanitario, University of Calabria, Rende, Italy.,Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
| | - Sebastiano Andò
- Centro Sanitario, University of Calabria, Rende, Italy.,Department of Pharmacy, Health Science and Nutrition, University of Calabria, Rende, Italy
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20
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Woods L, Perez-Garcia V, Kieckbusch J, Wang X, DeMayo F, Colucci F, Hemberger M. Decidualisation and placentation defects are a major cause of age-related reproductive decline. Nat Commun 2017; 8:352. [PMID: 28874785 PMCID: PMC5585348 DOI: 10.1038/s41467-017-00308-x] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 06/20/2017] [Indexed: 12/19/2022] Open
Abstract
Mammalian reproductive performance declines rapidly with advanced maternal age. This effect is largely attributed to the exponential increase in chromosome segregation errors in the oocyte with age. Yet many pregnancy complications and birth defects that become more frequent in older mothers, in both humans and mice, occur in the absence of karyotypic abnormalities. Here, we report that abnormal embryonic development in aged female mice is associated with severe placentation defects, which result from major deficits in the decidualisation response of the uterine stroma. This problem is rooted in a blunted hormonal responsiveness of the ageing uterus. Importantly, a young uterine environment can restore normal placental as well as embryonic development. Our data highlight the pivotal, albeit under-appreciated, impact of maternal age on uterine adaptability to pregnancy as major contributor to the decline in reproductive success in older females.Advanced maternal age has been associated with lower reproductive success and higher risk of pregnancy complications. Here the authors show that maternal ageing-related embryonic abnormalities in mouse are caused by decidualisation and placentation defects that can be rescued by transferring the embryo from an old to a young uterus.
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Affiliation(s)
- Laura Woods
- Epigenetics Programme, The Babraham Institute, Babraham Research Campus, Cambridge, CB22 3AT, UK
- Centre for Trophoblast Research, University of Cambridge, Downing Street, Cambridge, CB2 3EG, UK
| | - Vicente Perez-Garcia
- Epigenetics Programme, The Babraham Institute, Babraham Research Campus, Cambridge, CB22 3AT, UK
- Centre for Trophoblast Research, University of Cambridge, Downing Street, Cambridge, CB2 3EG, UK
| | - Jens Kieckbusch
- Department of Obstetrics and Gynaecology, University of Cambridge School of Clinical Medicine, NIHR Cambridge Biomedical Research Centre, Addenbrooke's Hospital, Box 111, Hills Road, Cambridge, CB2 0SP, UK
| | - Xiaoqiu Wang
- Reproductive and Developmental Biology Laboratory, NIEHS, Research Triangle Park, Durham, NC, 27709, USA
| | - Francesco DeMayo
- Reproductive and Developmental Biology Laboratory, NIEHS, Research Triangle Park, Durham, NC, 27709, USA
| | - Francesco Colucci
- Department of Obstetrics and Gynaecology, University of Cambridge School of Clinical Medicine, NIHR Cambridge Biomedical Research Centre, Addenbrooke's Hospital, Box 111, Hills Road, Cambridge, CB2 0SP, UK
| | - Myriam Hemberger
- Epigenetics Programme, The Babraham Institute, Babraham Research Campus, Cambridge, CB22 3AT, UK.
- Centre for Trophoblast Research, University of Cambridge, Downing Street, Cambridge, CB2 3EG, UK.
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21
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Triki M, Lapierre M, Cavailles V, Mokdad-Gargouri R. Expression and role of nuclear receptor coregulators in colorectal cancer. World J Gastroenterol 2017; 23:4480-4490. [PMID: 28740336 PMCID: PMC5504363 DOI: 10.3748/wjg.v23.i25.4480] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 09/30/2016] [Accepted: 10/31/2016] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer (CRC) is one of the most common human cancers and the cause of about 700000 deaths per year worldwide. Deregulation of the WNT/β-catenin pathway is a key event in CRC initiation. This pathway interacts with other nuclear signaling pathways, including members of the nuclear receptor superfamily and their transcription coregulators. In this review, we provide an overview of the literature dealing with the main coactivators (NCoA-1 to 3, NCoA-6, PGC1-α, p300, CREBBP and MED1) and corepressors (N-CoR1 and 2, NRIP1 and MTA1) of nuclear receptors and summarize their links with the WNT/β-catenin signaling cascade, their expression in CRC and their role in intestinal physiopathology.
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22
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Suresh S, Durakoglugil D, Zhou X, Zhu B, Comerford SA, Xing C, Xie XJ, York B, O’Donnell KA. SRC-2-mediated coactivation of anti-tumorigenic target genes suppresses MYC-induced liver cancer. PLoS Genet 2017; 13:e1006650. [PMID: 28273073 PMCID: PMC5362238 DOI: 10.1371/journal.pgen.1006650] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 03/22/2017] [Accepted: 02/23/2017] [Indexed: 12/15/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the fifth most common solid tumor in the world and the third leading cause of cancer-associated deaths. A Sleeping Beauty-mediated transposon mutagenesis screen previously identified mutations that cooperate with MYC to accelerate liver tumorigenesis. This revealed a tumor suppressor role for Steroid Receptor Coactivator 2/Nuclear Receptor Coactivator 2 (Src-2/Ncoa2) in liver cancer. In contrast, SRC-2 promotes survival and metastasis in prostate cancer cells, suggesting a tissue-specific and context-dependent role for SRC-2 in tumorigenesis. To determine if genetic loss of SRC-2 is sufficient to accelerate MYC-mediated liver tumorigenesis, we bred Src-2-/- mice with a MYC-induced liver tumor model and observed a significant increase in liver tumor burden. RNA sequencing of liver tumors and in vivo chromatin immunoprecipitation assays revealed a set of direct target genes that are bound by SRC-2 and exhibit downregulated expression in Src-2-/- liver tumors. We demonstrate that activation of SHP (Small Heterodimer Partner), DKK4 (Dickkopf-4), and CADM4 (Cell Adhesion Molecule 4) by SRC-2 suppresses tumorigenesis in vitro and in vivo. These studies suggest that SRC-2 may exhibit oncogenic or tumor suppressor activity depending on the target genes and nuclear receptors that are expressed in distinct tissues and illuminate the mechanisms of tumor suppression by SRC-2 in liver.
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Affiliation(s)
- Shruthy Suresh
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, TX, United States of America
| | - Deniz Durakoglugil
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, TX, United States of America
| | - Xiaorong Zhou
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, TX, United States of America
- Department of Immunology, Nantong University School of Medicine, Nantong, China
| | - Bokai Zhu
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, United States of America
| | - Sarah A. Comerford
- Department of Molecular Genetics, UT Southwestern Medical Center, Dallas, TX, United States of America
| | - Chao Xing
- Department of Clinical Sciences, UT Southwestern Medical Center, Dallas, TX, United States of America
- McDermott Center for Human Growth and Development, UT Southwestern Medical Center, Dallas, TX, United States of America
| | - Xian-Jin Xie
- Department of Clinical Sciences, UT Southwestern Medical Center, Dallas, TX, United States of America
- Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, TX, United States of America
| | - Brian York
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, United States of America
- Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, United States of America
| | - Kathryn A. O’Donnell
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, TX, United States of America
- Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, TX, United States of America
- * E-mail:
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23
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Kim SC, Park MN, Lee YJ, Joo JK, An BS. Interaction of steroid receptor coactivators and estrogen receptors in the human placenta. J Mol Endocrinol 2016; 56:239-47. [PMID: 26733313 DOI: 10.1530/jme-15-0248] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 01/04/2016] [Indexed: 01/27/2023]
Abstract
Female sex steroid hormones such as estrogen and progesterone have a pivotal role in maintaining pregnancy in human and animals. Especially, estrogen exerts specific effects on the cardiovascular system and angiogenesis, and thus affects significantly on placentation. Although the functions of estrogen have been emphasized during pregnancy, their signaling pathways in the placenta have not been fully understood. In this study, estrogen signaling was evaluated according to gestational age. Human placenta samples were collected and divided into early preterm (n=10), late preterm (n=18), and term (n=20) groups. First, serum estrogen concentration and corticotropin-releasing hormone (CRH) mRNA expression, which is known as gestation clock gene, were increased following gestation age in our experimental condition, as we expected. Next, the expression of estrogen receptors (ERs) and steroid receptor coactivators (SRCs) in the placenta was evaluated. ERα (ESR1) and ERβ (ESR2) were expressed highly at term period compared with early preterm. In addition, SRC family including SRC1, SRC2, and SRC3 was expressed in the human placenta, and the levels of SRC1, SRC2, and SRC3 were increased in the placenta at the late stage of gestation. The interaction of ERs with SRCs was also examined, which was significantly enhanced at term period. In the immunostaining results, it was indicated that ERs and SRCs were all dominantly expressed in syncytiotrophoblast cells. These results suggested that SRC1, SRC2, and SRC3 were expressed and interact with ERs highly at the late stage of gestation, and may amplify the signaling of estrogen in the placenta to maintain pregnancy.
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Affiliation(s)
- Seung Chul Kim
- Department of Obstetrics and GynecologyBiomedical Research Institute, Pusan National University School of Medicine, Busan, Republic of Korea
| | - Mee-Na Park
- Department of Biomaterials ScienceCollege of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, Republic of Korea
| | - Young Joo Lee
- Department of Obstetrics and GynecologyBiomedical Research Institute, Pusan National University School of Medicine, Busan, Republic of Korea
| | - Jong Kil Joo
- Department of Obstetrics and GynecologyBiomedical Research Institute, Pusan National University School of Medicine, Busan, Republic of Korea
| | - Beum-Soo An
- Department of Biomaterials ScienceCollege of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, Republic of Korea
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24
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Cuevas CA, Tapia-Pizarro A, Salvatierra AM, Munroe DJ, Velasquez L, Croxatto HB. Effect of single post-ovulatory administration of mifepristone (RU486) on transcript profile during the receptive period in human endometrium. Reproduction 2016; 151:331-49. [DOI: 10.1530/rep-15-0458] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 01/11/2016] [Indexed: 12/24/2022]
Abstract
Progesterone regulates uterine function during the luteal phase and is essential for the acquisition of endometrial receptivity. The objective of the present study was to identify endometrial transcripts whose expression is altered during the window of implantation after the administration of 200 mg of the antiprogestin mifepristone, 48 h after the LH peak (LH+2, LH+0=LH peak), and to determine the relationship of these transcripts with those regulated during the acquisition of receptivity. Endometrial samples were obtained in LH+7 from seven women of proven fertility, each one contributing with one cycle treated with placebo and another with mifepristone. Additionally, endometrial samples were obtained in LH+2 and LH+7 during a single untreated spontaneous cycle from seven normal fertile women as a reference. DNA microarrays were used to identify transcripts significantly regulated (defined as ≥2.0-fold change with false discovery rate below 1% usingt-test) with the administration of mifepristone vs placebo, or during the transition from pre-receptive to receptive (LH+2 vs LH+7). Approximately 2000 transcripts were significantly regulated in both comparisons (mifepristone vs placebo and LH+2 vs LH+7), but only 777 of them were coincident and displayed opposite regulation except for 25. The mRNA level for eight selected genes regulated by mifepristone was confirmed by real-time RT-PCR. We conclude that not all changes in endometrial transcript levels occurring in the transition from LH+2 to LH+7 seem to be regulated by the progesterone receptor and ∼37% of the genes whose transcript levels changed by effect of mifepristone could be associated with the acquisition of receptivity.
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25
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Szwarc MM, Lydon JP, O'Malley BW. Steroid receptor coactivators as therapeutic targets in the female reproductive system. J Steroid Biochem Mol Biol 2015; 154:32-8. [PMID: 26151740 PMCID: PMC5201167 DOI: 10.1016/j.jsbmb.2015.06.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 06/15/2015] [Accepted: 06/16/2015] [Indexed: 11/25/2022]
Abstract
The steroid receptor coactivators (SRCs/p160/NCOA) are a family of three transcriptional coregulators initially discovered to transactivate the transcriptional potency of steroid hormone receptors. Even though SRCs were also found to modulate the activity of multiple other transcription factors, their function is still strongly associated with regulation of steroid hormone action and many studies have found that they are critical for the regulation of reproductive biology. In the case of the female reproductive tract, SRCs have been found to play crucial roles in its physiology, ranging from ovulation, implantation, to parturition. Not surprisingly, SRCs' action has been linked to numerous abnormalities and debilitating disorders of female reproductive tissues, including infertility, cancer, and endometriosis. Many of these pathologies are still in critical need of therapeutic intervention and "proof-of-principle" studies have found that SRCs are excellent targets in pathological states. Therefore, small molecule modulators of SRCs' activity could be applied in the future in the treatment of many diseases of the female reproductive system.
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Affiliation(s)
- Maria M Szwarc
- Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, USA
| | - John P Lydon
- Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, USA
| | - Bert W O'Malley
- Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, USA.
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26
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Diao H, Li R, El Zowalaty AE, Xiao S, Zhao F, Dudley EA, Ye X. Deletion of Lysophosphatidic Acid Receptor 3 (Lpar3) Disrupts Fine Local Balance of Progesterone and Estrogen Signaling in Mouse Uterus During Implantation. Biol Reprod 2015; 93:123. [PMID: 26447143 DOI: 10.1095/biolreprod.115.131110] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 10/06/2015] [Indexed: 12/11/2022] Open
Abstract
Lpar3 encodes LPA3, the third G protein-coupled receptor for lysophosphatidic acid (LPA). Lpar3(-/-) female mice had delayed embryo implantation. Their serum progesterone and estrogen levels were comparable with control on Gestation Day 3.5 (D3.5) at 1100 h. There was reduced cell proliferation in D3.5 and D4.5 Lpar3(-/-) stroma. Progesterone receptor (PGR) disappeared from D4.5 Lpar3(+/+) uterine luminal epithelium (LE) but remained highly expressed in D4.5 Lpar3(-/-) LE. Pgr and PGR- target genes but not estrogen receptor alpha (ERalpha [Esr1]) or ESR target genes, were upregulated in D4.5 Lpar3(-/-) LE. It was hypothesized that suppression of PGR activity in LE could restore on-time uterine receptivity in Lpar3(-/-) mice. A low dose of RU486 (5 μg/mouse) given on D3.5 at 900 h rescued delayed implantation in all pregnant Lpar3(-/-) females and significantly increased number of implantation sites compared to vehicle-treated pregnant Lpar3(-/-) females detected on D4.5. E2 (25 ng/mouse) had a similar effect as 5 μg RU486 on embryo implantation in Lpar3(-/-) females. However, when the ovaries were removed on late D2.5 to create an experimentally induced delayed implantation model, 25 ng E2 activated implantation in Lpar3(+/+) but not Lpar3(-/-) females detected on D4.5. These results demonstrate that deletion of Lpar3 leads to an increased ratio of progesterone signaling/estrogen signaling that can be optimized by low doses of RU486 or E2 to restore on-time implantation in Lpar3(-/-) females.
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Affiliation(s)
- Honglu Diao
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, Athens, Georgia Reproductive Medical Center, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Rong Li
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, Athens, Georgia Interdisciplinary Toxicology Program, University of Georgia, Athens, Georgia
| | - Ahmed E El Zowalaty
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, Athens, Georgia Interdisciplinary Toxicology Program, University of Georgia, Athens, Georgia
| | - Shuo Xiao
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, Athens, Georgia Interdisciplinary Toxicology Program, University of Georgia, Athens, Georgia
| | - Fei Zhao
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, Athens, Georgia Interdisciplinary Toxicology Program, University of Georgia, Athens, Georgia
| | - Elizabeth A Dudley
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, Athens, Georgia Interdisciplinary Toxicology Program, University of Georgia, Athens, Georgia
| | - Xiaoqin Ye
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, Athens, Georgia Interdisciplinary Toxicology Program, University of Georgia, Athens, Georgia
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27
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Dhakal P, Rumi MAK, Kubota K, Chakraborty D, Chien J, Roby KF, Soares MJ. Neonatal Progesterone Programs Adult Uterine Responses to Progesterone and Susceptibility to Uterine Dysfunction. Endocrinology 2015. [PMID: 26204463 PMCID: PMC4588825 DOI: 10.1210/en.2015-1397] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
In this report, we investigated the consequences of neonatal progesterone exposure on adult rat uterine function. Female pups were subcutaneously injected with vehicle or progesterone from postnatal days 3 to 9. Early progesterone exposure affected endometrial gland biogenesis, puberty, decidualization, and fertility. Because decidualization and pregnancy success are directly linked to progesterone action on the uterus, we investigated the responsiveness of the adult uterus to progesterone. We first identified progesterone-dependent uterine gene expression using RNA sequencing and quantitative RT-PCR in Holtzman Sprague-Dawley rats and progesterone-resistant Brown Norway rats. The impact of neonatal progesterone treatment on adult uterine progesterone responsiveness was next investigated using quantitative RT-PCR. Progesterone resistance affected the spectrum and total number of progesterone-responsive genes and the magnitude of uterine responses for a subset of progesterone targets. Several progesterone-responsive genes in adult uterus exhibited significantly dampened responses in neonatally progesterone-treated females compared with those of vehicle-treated controls, whereas other progesterone-responsive transcripts did not differ between female rats exposed to vehicle or progesterone as neonates. The organizational actions of progesterone on the uterus were dependent on signaling through the progesterone receptor but not estrogen receptor 1. To summarize, neonatal progesterone exposure leads to disturbances in endometrial gland biogenesis, progesterone resistance, and uterine dysfunction. Neonatal progesterone effectively programs adult uterine responsiveness to progesterone.
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Affiliation(s)
- Pramod Dhakal
- Institute for Reproductive Health and Regenerative Medicine, Departments of Pathology and Laboratory Medicine (P.D., M.A.K.R., K.K., D.C., M.J.S.), Cancer Biology (J.C.), and Anatomy and Cell Biology (K.F.R.), University of Kansas Medical Center, Kansas City, Kansas 66160
| | - M A Karim Rumi
- Institute for Reproductive Health and Regenerative Medicine, Departments of Pathology and Laboratory Medicine (P.D., M.A.K.R., K.K., D.C., M.J.S.), Cancer Biology (J.C.), and Anatomy and Cell Biology (K.F.R.), University of Kansas Medical Center, Kansas City, Kansas 66160
| | - Kaiyu Kubota
- Institute for Reproductive Health and Regenerative Medicine, Departments of Pathology and Laboratory Medicine (P.D., M.A.K.R., K.K., D.C., M.J.S.), Cancer Biology (J.C.), and Anatomy and Cell Biology (K.F.R.), University of Kansas Medical Center, Kansas City, Kansas 66160
| | - Damayanti Chakraborty
- Institute for Reproductive Health and Regenerative Medicine, Departments of Pathology and Laboratory Medicine (P.D., M.A.K.R., K.K., D.C., M.J.S.), Cancer Biology (J.C.), and Anatomy and Cell Biology (K.F.R.), University of Kansas Medical Center, Kansas City, Kansas 66160
| | - Jeremy Chien
- Institute for Reproductive Health and Regenerative Medicine, Departments of Pathology and Laboratory Medicine (P.D., M.A.K.R., K.K., D.C., M.J.S.), Cancer Biology (J.C.), and Anatomy and Cell Biology (K.F.R.), University of Kansas Medical Center, Kansas City, Kansas 66160
| | - Katherine F Roby
- Institute for Reproductive Health and Regenerative Medicine, Departments of Pathology and Laboratory Medicine (P.D., M.A.K.R., K.K., D.C., M.J.S.), Cancer Biology (J.C.), and Anatomy and Cell Biology (K.F.R.), University of Kansas Medical Center, Kansas City, Kansas 66160
| | - Michael J Soares
- Institute for Reproductive Health and Regenerative Medicine, Departments of Pathology and Laboratory Medicine (P.D., M.A.K.R., K.K., D.C., M.J.S.), Cancer Biology (J.C.), and Anatomy and Cell Biology (K.F.R.), University of Kansas Medical Center, Kansas City, Kansas 66160
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28
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Szwarc MM, Lydon JP, O'Malley BW. Reprint of "Steroid receptor coactivators as therapeutic targets in the female reproductive system". J Steroid Biochem Mol Biol 2015; 153:144-50. [PMID: 26291832 DOI: 10.1016/j.jsbmb.2015.08.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 06/15/2015] [Accepted: 06/16/2015] [Indexed: 11/22/2022]
Abstract
The steroid receptor coactivators (SRCs/p160/NCOA) are a family of three transcriptional coregulators initially discovered to transactivate the transcriptional potency of steroid hormone receptors. Even though SRCs were also found to modulate the activity of multiple other transcription factors, their function is still strongly associated with regulation of steroid hormone action and many studies have found that they are critical for the regulation of reproductive biology. In the case of the female reproductive tract, SRCs have been found to play crucial roles in its physiology, ranging from ovulation, implantation, to parturition. Not surprisingly, SRCs' action has been linked to numerous abnormalities and debilitating disorders of female reproductive tissues, including infertility, cancer, and endometriosis. Many of these pathologies are still in critical need of therapeutic intervention and "proof-of-principle" studies have found that SRCs are excellent targets in pathological states. Therefore, small molecule modulators of SRCs' activity could be applied in the future in the treatment of many diseases of the female reproductive system.
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Affiliation(s)
- Maria M Szwarc
- Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, USA
| | - John P Lydon
- Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, USA
| | - Bert W O'Malley
- Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, USA.
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29
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Chen X, Qin L, Liu Z, Liao L, Martin JF, Xu J. Knockout of SRC-1 and SRC-3 in Mice Decreases Cardiomyocyte Proliferation and Causes a Noncompaction Cardiomyopathy Phenotype. Int J Biol Sci 2015. [PMID: 26221073 PMCID: PMC4515817 DOI: 10.7150/ijbs.12408] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Noncompaction cardiomyopathy (NCC) is a congenital heart disease that causes ventricular dysfunction and high mortality rate in children. The mechanisms responsible for NCC are still unknown. The steroid receptor coactivator-1 (SRC-1) and SRC-3 are transcriptional coactivators for nuclear hormone receptors and certain other transcription factors that regulate many genes in development and organ function. However, the roles of SRC-1/3 in heart morphogenesis, function and NCC occurrence are unknown. This study aims to examine the spatial and temporal expression patterns of SRC-1/3 in the heart and investigate the specific roles of SRC-1/3 in heart development, function and NCC occurrence. Immunochemical analysis detected SRC-1/3 expressions in the proliferating cardiomyocytes of mouse heart at prenatal and neonatal stages, while these expressions disappeared within two weeks after birth. Through generating and characterizing mouse lines with global or cardiomyocyte-specific knockouts of SRC-1/3, we found ablation of SRC-1/3 in the myocardial lineage resulted in prominent trabeculae, deep intertrabecular recesses and thin ventricular wall and septum. These developmental defects caused a failure of trabecular compaction, decreased internal ventricular dimension, reduced cardiac ejection fraction and output and led to a high rate of postnatal mortality. Collectively, these structural and functional abnormalities closely simulate the phenotype of NCC patients. Further molecular analysis of cardiomyocytes in vivo and in vitro revealed that SRC-1/3 directly up-regulate cyclin E2, cyclin B1 and myocardin to promote cardiomyocyte proliferation and differentiation. In conclusion, SRC-1/3 are required for cardiomyocyte proliferation and differentiation at earlier developmental stages, and their dysfunction causes NCC-like abnormalities in the hearts of newborn and adult mice.
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Affiliation(s)
- Xian Chen
- 1. Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Li Qin
- 1. Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Zhaoliang Liu
- 1. Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Lan Liao
- 1. Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - James F Martin
- 2. Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jianming Xu
- 1. Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA. ; 3. Sichuan Medical University, Luzhou, Sichuan 646000, China
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30
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Yun BH, Jeon YE, Seo SK, Park JH, Yoon SO, Cho S, Choi YS, Lee BS. Effects of a Levonorgestrel-Releasing Intrauterine System on the Expression of Steroid Receptor Coregulators in Adenomyosis. Reprod Sci 2015; 22:1539-48. [DOI: 10.1177/1933719115589411] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Bo Hyon Yun
- Department of Obstetrics and Gynecology, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
- Institute of Women’s Life Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Young Eun Jeon
- Institute of Women’s Life Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
- Department of Obstetrics and Gynecology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seok Kyo Seo
- Department of Obstetrics and Gynecology, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
- Institute of Women’s Life Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Joo Hyun Park
- Institute of Women’s Life Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
- Department of Obstetrics and Gynecology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sun Och Yoon
- Department of Pathology, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - SiHyun Cho
- Institute of Women’s Life Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
- Department of Obstetrics and Gynecology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Young Sik Choi
- Department of Obstetrics and Gynecology, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
- Institute of Women’s Life Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Byung Seok Lee
- Department of Obstetrics and Gynecology, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
- Institute of Women’s Life Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
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31
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Bozickovic O, Hoang T, Fenne IS, Helland T, Skartveit L, Ouchida M, Mellgren G, Sagen JV. Cyclin C interacts with steroid receptor coactivator 2 and upregulates cell cycle genes in MCF-7 cells. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2015; 1853:2383-91. [PMID: 25986860 DOI: 10.1016/j.bbamcr.2015.05.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 04/23/2015] [Accepted: 05/09/2015] [Indexed: 11/16/2022]
Abstract
Steroid receptor coactivator 2 (SRC-2) is a coactivator that regulates nuclear receptor activity. We previously reported that SRC-2 protein is degraded through the action of cAMP-dependent protein kinase A (PKA) and cAMP response element binding protein (CREB). In the study presented here, we aimed to identify proteins that interact with and thereby regulate SRC-2. We isolated cyclin C (CCNC) as an interacting partner with the SRC-2 degradation domain aa 347-758 in a yeast two-hybrid assay and confirmed direct interaction in an in vitro assay. The protein level of SRC-2 was increased with CCNC overexpression in COS-1 cells and decreased with CCNC silencing in COS-1 and MCF-7 cells. In a pulse-chase assay, we further show that silencing of CCNC resulted in a different SRC-2 degradation pattern during the first 6 h after the pulse. Finally, we provide evidence that CCNC regulates expression of cell cycle genes upregulated by SRC-2. In conclusion, our results suggest that CCNC temporarily protects SRC-2 against degradation and this event is involved in the transcriptional regulation of SRC-2 cell cycle target genes.
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Affiliation(s)
- Olivera Bozickovic
- Department of Clinical Science, University of Bergen, Bergen N-5021, Norway; Hormone Laboratory, Haukeland University Hospital, Bergen N-5021, Norway.
| | - Tuyen Hoang
- Department of Clinical Science, University of Bergen, Bergen N-5021, Norway.
| | - Ingvild S Fenne
- Department of Clinical Science, University of Bergen, Bergen N-5021, Norway; Hormone Laboratory, Haukeland University Hospital, Bergen N-5021, Norway.
| | - Thomas Helland
- Department of Clinical Science, University of Bergen, Bergen N-5021, Norway; Hormone Laboratory, Haukeland University Hospital, Bergen N-5021, Norway.
| | - Linn Skartveit
- Department of Clinical Science, University of Bergen, Bergen N-5021, Norway; Hormone Laboratory, Haukeland University Hospital, Bergen N-5021, Norway.
| | - Mamoru Ouchida
- Department of Molecular Genetics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
| | - Gunnar Mellgren
- Department of Clinical Science, University of Bergen, Bergen N-5021, Norway; Hormone Laboratory, Haukeland University Hospital, Bergen N-5021, Norway.
| | - Jørn V Sagen
- Department of Clinical Science, University of Bergen, Bergen N-5021, Norway; Hormone Laboratory, Haukeland University Hospital, Bergen N-5021, Norway.
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32
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Wetendorf M, DeMayo FJ. Progesterone receptor signaling in the initiation of pregnancy and preservation of a healthy uterus. THE INTERNATIONAL JOURNAL OF DEVELOPMENTAL BIOLOGY 2015; 58:95-106. [PMID: 25023675 DOI: 10.1387/ijdb.140069mw] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Infertility and reproductive-associated disease are global problems in the world today affecting millions of women. A successful pregnancy requires a healthy uterus ready to receive and support an implanting embryo. As an endocrine organ, the uterus is dependent on the secretions of the ovarian hormones estrogen and progesterone which signal via their cognate receptors, the estrogen and progesterone receptors. The progesterone receptor not only functions using classical nuclear receptor signaling, but also participates in non-genomic signaling at the cellular membrane. The complexity of progesterone signaling is further enhanced by the existence of multiple isoforms and post-translational regulation via kinases and transcription coregulators. This dynamic means of regulation of the progesterone receptor is evidenced in its necessary role in a successful pregnancy. Within early pregnancy, the progesterone receptor elicits activation of its target genes in a spatiotemporal manner in order to allow for successful embryo attachment and uterine decidualization. Additionally, appropriate progesterone signaling is important for the prevention of uterine disease such as endometrial cancer, endometriosis, and leiomyoma. The utilization of progesterone receptor modulators in the treatment of these devastating uterine diseases is promising. This review presents a general overview of progesterone receptor structure, function, and regulation and highlights its important role in the establishment of pregnancy and as a therapeutic target in uterine disease.
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Affiliation(s)
- Margeaux Wetendorf
- Integrative Molecular and Biomedical Sciences Graduate Program , Baylor College of Medicine, One Baylor Plaza, Houston, TX, USA
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Cha JM, Dey SK. Reflections on Rodent Implantation. REGULATION OF IMPLANTATION AND ESTABLISHMENT OF PREGNANCY IN MAMMALS 2015; 216:69-85. [DOI: 10.1007/978-3-319-15856-3_5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Gellersen B, Brosens JJ. Cyclic decidualization of the human endometrium in reproductive health and failure. Endocr Rev 2014; 35:851-905. [PMID: 25141152 DOI: 10.1210/er.2014-1045] [Citation(s) in RCA: 626] [Impact Index Per Article: 62.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Decidualization denotes the transformation of endometrial stromal fibroblasts into specialized secretory decidual cells that provide a nutritive and immunoprivileged matrix essential for embryo implantation and placental development. In contrast to most mammals, decidualization of the human endometrium does not require embryo implantation. Instead, this process is driven by the postovulatory rise in progesterone levels and increasing local cAMP production. In response to falling progesterone levels, spontaneous decidualization causes menstrual shedding and cyclic regeneration of the endometrium. A growing body of evidence indicates that the shift from embryonic to maternal control of the decidual process represents a pivotal evolutionary adaptation to the challenge posed by invasive and chromosomally diverse human embryos. This concept is predicated on the ability of decidualizing stromal cells to respond to individual embryos in a manner that either promotes implantation and further development or facilitates early rejection. Furthermore, menstruation and cyclic regeneration involves stem cell recruitment and renders the endometrium intrinsically capable of adapting its decidual response to maximize reproductive success. Here we review the endocrine, paracrine, and autocrine cues that tightly govern this differentiation process. In response to activation of various signaling pathways and genome-wide chromatin remodeling, evolutionarily conserved transcriptional factors gain access to the decidua-specific regulatory circuitry. Once initiated, the decidual process is poised to transit through distinct phenotypic phases that underpin endometrial receptivity, embryo selection, and, ultimately, resolution of pregnancy. We discuss how disorders that subvert the programming, initiation, or progression of decidualization compromise reproductive health and predispose for pregnancy failure.
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Affiliation(s)
- Birgit Gellersen
- Endokrinologikum Hamburg (B.G.), 20251 Hamburg, Germany; and Division of Reproductive Health (J.J.B.), Warwick Medical School, University of Warwick, Coventry CV4 7AL, United Kingdom
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Abstract
Selective estrogen receptor modulators (SERMs) are a class of small-molecule chemical compounds that bind to estrogen receptor (ER) ligand binding domain (LBD) with high affinity and selectively modulate ER transcriptional activity in a cell- and tissue-dependent manner. The prototype of SERMs is tamoxifen, which has agonist activity in bone, but has antagonist activity in breast. Tamoxifen can reduce the risk of breast cancer and, at same time, prevent osteoporosis in postmenopausal women. Tamoxifen is widely prescribed for treatment and prevention of breast cancer. Mechanistically the activity of SERMs is determined by the selective recruitment of coactivators and corepressors in different cell types and tissues. Therefore, understanding the coregulator function is the key to understanding the tissue selective activity of SERMs.
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Affiliation(s)
- Qin Feng
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Bert W O'Malley
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA.
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Cantley JL, Vatner DF, Galbo T, Madiraju A, Petersen M, Perry RJ, Kumashiro N, Guebre-Egziabher F, Gattu AK, Stacy MR, Dione DP, Sinusas AJ, Ragolia L, Hall CE, Manchem VP, Bhanot S, Bogan JS, Samuel VT. Targeting steroid receptor coactivator 1 with antisense oligonucleotides increases insulin-stimulated skeletal muscle glucose uptake in chow-fed and high-fat-fed male rats. Am J Physiol Endocrinol Metab 2014; 307:E773-83. [PMID: 25159329 PMCID: PMC4216948 DOI: 10.1152/ajpendo.00148.2014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The steroid receptor coactivator 1 (SRC1) regulates key metabolic pathways, including glucose homeostasis. SRC1(-/-) mice have decreased hepatic expression of gluconeogenic enzymes and a reduction in the rate of endogenous glucose production (EGP). We sought to determine whether decreasing hepatic and adipose SRC1 expression in normal adult rats would alter glucose homeostasis and insulin action. Regular chow-fed and high-fat-fed male Sprage-Dawley rats were treated with an antisense oligonucleotide (ASO) against SRC1 or a control ASO for 4 wk, followed by metabolic assessments. SRC1 ASO did not alter basal EGP or expression of gluconeogenic enzymes. Instead, SRC1 ASO increased insulin-stimulated whole body glucose disposal by ~30%, which was attributable largely to an increase in insulin-stimulated muscle glucose uptake. This was associated with an approximately sevenfold increase in adipose expression of lipocalin-type prostaglandin D2 synthase, a previously reported regulator of insulin sensitivity, and an approximately 70% increase in plasma PGD2 concentration. Muscle insulin signaling, AMPK activation, and tissue perfusion were unchanged. Although GLUT4 content was unchanged, SRC1 ASO increased the cleavage of tether-containing UBX domain for GLUT4, a regulator of GLUT4 translocation. These studies point to a novel role of adipose SRC1 as a regulator of insulin-stimulated muscle glucose uptake.
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Affiliation(s)
- Jennifer L Cantley
- Howard Hughes Medical Institute and Departments of Internal Medicine and
| | | | | | | | | | | | - Naoki Kumashiro
- Howard Hughes Medical Institute and Departments of Internal Medicine and
| | | | - Arijeet K Gattu
- Departments of Internal Medicine and West Haven Veterans Affairs Medical Center, West Haven, Connecticut
| | | | | | | | - Louis Ragolia
- Vascular Biology Institute, Winthrop-University Hospital, Mineola, New York
| | - Christopher E Hall
- Vascular Biology Institute, Winthrop-University Hospital, Mineola, New York
| | | | | | - Jonathan S Bogan
- Departments of Internal Medicine and Cell Biology, Yale School of Medicine, New Haven, Connecticut
| | - Varman T Samuel
- Departments of Internal Medicine and West Haven Veterans Affairs Medical Center, West Haven, Connecticut;
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Szwarc MM, Kommagani R, Lessey BA, Lydon JP. The p160/steroid receptor coactivator family: potent arbiters of uterine physiology and dysfunction. Biol Reprod 2014; 91:122. [PMID: 25297546 PMCID: PMC4434928 DOI: 10.1095/biolreprod.114.125021] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Revised: 09/22/2014] [Accepted: 10/03/2014] [Indexed: 11/01/2022] Open
Abstract
The p160/steroid receptor coactivator (SRC) family comprises three pleiotropic coregulators (SRC-1, SRC-2, and SRC-3; otherwise known as NCOA1, NCOA2, and NCOA3, respectively), which modulate a wide spectrum of physiological responses and clinicopathologies. Such pleiotropy is achieved through their inherent structural complexity, which allows this coregulator class to control both nuclear receptor and non-nuclear receptor signaling. As observed in other physiologic systems, members of the SRC family have recently been shown to play pivotal roles in uterine biology and pathobiology. In the murine uterus, SRC-1 is required to launch a full steroid hormone response, without which endometrial decidualization is markedly attenuated. From "dovetailing" clinical and mouse studies, an isoform of SRC-1 was recently identified which promotes endometriosis by reprogramming endometrial cells to evade apoptosis and to colonize as endometriotic lesions within the peritoneal cavity. The endometrium fails to decidualize without SRC-2, which accounts for the infertility phenotype exhibited by mice devoid of this coregulator. In related studies on human endometrial stromal cells, SRC-2 was shown to act as a molecular "pacemaker" of the glycolytic flux. This finding is significant because acceleration of the glycolytic flux provides the necessary bioenergy and biomolecules for endometrial stromal cells to switch from quiescence to a proliferative phenotype, a critical underpinning in the decidual progression program. Although studies on uterine SRC-3 function are in their early stages, clinical studies provide tantalizing support for the proposal that SRC-3 is causally linked to endometrial hyperplasia as well as with endometrial pathologies in patients diagnosed with polycystic ovary syndrome. This proposal is now driving the development and application of innovative technologies, particularly in the mouse, to further understand the functional role of this elusive uterine coregulator in normal and abnormal physiologic contexts. Because dysregulation of this coregulator triad potentially presents a triple threat for increased risk of subfecundity, infertility, or endometrial disease, a clearer understanding of the individual and combinatorial roles of these coregulators in uterine function is urgently required. This minireview summarizes our current understanding of uterine SRC function, with a particular emphasis on the next critical questions that need to be addressed to ensure significant expansion of our knowledge of this underexplored field of uterine biology.
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Affiliation(s)
- Maria M Szwarc
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas
| | - Ramakrishna Kommagani
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas
| | - Bruce A Lessey
- Department of Obstetrics and Gynecology, University of South Carolina School of Medicine, Greenville, South Carolina
| | - John P Lydon
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas
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Manavathi B, Samanthapudi VSK, Gajulapalli VNR. Estrogen receptor coregulators and pioneer factors: the orchestrators of mammary gland cell fate and development. Front Cell Dev Biol 2014; 2:34. [PMID: 25364741 PMCID: PMC4207046 DOI: 10.3389/fcell.2014.00034] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Accepted: 07/21/2014] [Indexed: 12/14/2022] Open
Abstract
The steroid hormone, 17β-estradiol (E2), plays critical role in various cellular processes such as cell proliferation, differentiation, migration and apoptosis, and is essential for reproduction and mammary gland development. E2 actions are mediated by two classical nuclear hormone receptors, estrogen receptor α and β (ERs). The activity of ERs depends on the coordinated activity of ligand binding, post-translational modifications (PTMs), and importantly the interaction with their partner proteins called “coregulators.” Because coregulators are proved to be crucial for ER transcriptional activity, and majority of breast cancers are ERα positive, an increased interest in the field has led to the identification of a large number of coregulators. In the last decade, gene knockout studies using mouse models provided impetus to our further understanding of the role of these coregulators in mammary gland development. Several coregulators appear to be critical for terminal end bud (TEB) formation, ductal branching and alveologenesis during mammary gland development. The emerging studies support that, coregulators along with the other ER partner proteins called “pioneer factors” together contribute significantly to E2 signaling and mammary cell fate. This review discusses emerging themes in coregulator and pioneer factor mediated action on ER functions, in particular their role in mammary gland cell fate and development.
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Affiliation(s)
- Bramanandam Manavathi
- Department of Biochemistry, School of Life Sciences, University of Hyderabad Hyderabad, India
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Pawar S, Hantak AM, Bagchi IC, Bagchi MK. Minireview: Steroid-regulated paracrine mechanisms controlling implantation. Mol Endocrinol 2014; 28:1408-22. [PMID: 25051170 DOI: 10.1210/me.2014-1074] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Implantation is an essential process during establishment of pregnancy in mammals. It is initiated with the attachment of the blastocyst to a receptive uterine epithelium followed by its invasion into the stromal tissue. These events are profoundly regulated by the steroid hormones 17β-estradiol and progesterone. During the past several years, mouse models harboring conditional gene knockout mutations have become powerful tools for determining the functional roles of cellular factors involved in various aspects of implantation biology. Studies using these genetic models as well as primary cultures of human endometrial cells have established that the estrogen receptor α, the progesterone receptor, and their downstream target genes critically regulate uterine growth and differentiation, which in turn control embryo-endometrial interactions during early pregnancy. These studies have uncovered a diverse array of molecular cues, which are produced under the influence of estrogen receptor α and progesterone receptor and exchanged between the epithelial and stromal compartments of the uterus during the progressive phases of implantation. These paracrine signals are critical for acquisition of uterine receptivity and functional interactions with the embryo. This review highlights recent work describing paracrine mechanisms that govern steroid-regulated uterine epithelial-stromal dialogue during implantation and their roles in fertility and disease.
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Affiliation(s)
- Sandeep Pawar
- Departments of Molecular and Integrative Physiology (S.P., A.M.H., M.K.B.) and Comparative Biosciences (I.C.B.), University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
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Szwarc MM, Kommagani R, Jeong JW, Wu SP, Tsai SY, Tsai MJ, O’Malley BW, DeMayo FJ, Lydon JP. Perturbing the cellular levels of steroid receptor coactivator-2 impairs murine endometrial function. PLoS One 2014; 9:e98664. [PMID: 24905738 PMCID: PMC4048228 DOI: 10.1371/journal.pone.0098664] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 05/01/2014] [Indexed: 01/24/2023] Open
Abstract
As pleiotropic coregulators, members of the p160/steroid receptor coactivator (SRC) family control a broad spectrum of transcriptional responses that underpin a diverse array of physiological and pathophysiological processes. Because of their potent coregulator properties, strict controls on SRC expression levels are required to maintain normal tissue functionality. Accordingly, an unwarranted increase in the cellular levels of SRC members has been causally linked to the initiation and/or progression of a number of clinical disorders. Although knockout mouse models have underscored the critical non-redundant roles for each SRC member in vivo, there are surprisingly few mouse models that have been engineered to overexpress SRCs. This deficiency is significant since SRC involvement in many of these disorders is based on unscheduled increases in the levels (rather than the absence) of SRC expression. To address this deficiency, we used recent mouse technology that allows for the targeted expression of human SRC-2 in cells which express the progesterone receptor. Through cre-loxP recombination driven by the endogenous progesterone receptor promoter, a marked elevation in expression levels of human SRC-2 was achieved in endometrial cells that are positive for the progesterone receptor. As a result of this increase in coregulator expression, female mice are severely subfertile due to a dysfunctional uterus, which exhibits a hypersensitivity to estrogen exposure. Our findings strongly support the proposal from clinical observations that increased levels of SRC-2 are causal for a number of endometrial disorders which compromise fertility. Future studies will use this mouse model to decipher the molecular mechanisms that underpin the endometrial defect. We believe such mechanistic insight may provide new molecular descriptors for diagnosis, prognosis, and/or therapy in the clinical management of female infertility.
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Affiliation(s)
- Maria M. Szwarc
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Ramakrishna Kommagani
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Jae-Wook Jeong
- Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, College of Human Medicine, Grand Rapids, Michigan, United States of America
| | - San-Pin Wu
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Sophia Y. Tsai
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Ming-Jer Tsai
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Bert W. O’Malley
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Francesco J. DeMayo
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - John P. Lydon
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
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Reineke EL, Benham A, Soibam B, Stashi E, Taegtmeyer H, Entman ML, Schwartz RJ, O'Malley BW. Steroid receptor coactivator-2 is a dual regulator of cardiac transcription factor function. J Biol Chem 2014; 289:17721-31. [PMID: 24811170 DOI: 10.1074/jbc.m113.539908] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
We have previously demonstrated the potential role of steroid receptor coactivator-2 (SRC-2) as a co-regulator in the transcription of critical molecules modulating cardiac function and metabolism in normal and stressed hearts. The present study seeks to extend the previous information by demonstrating SRC-2 fulfills this role by serving as a critical coactivator for the transcription and activity of critical transcription factors known to control cardiac growth and metabolism as well as in their downstream signaling. This knowledge broadens our understanding of the mechanism by which SRC-2 acts in normal and stressed hearts and allows further investigation of the transcriptional modifications mediating different types and degrees of cardiac stress. Moreover, the genetic manipulation of SRC-2 in this study is specific for the heart and thereby eliminating potential indirect effects of SRC-2 deletion in other organs. We have shown that SRC-2 is critical to transcriptional control modulated by MEF2, GATA-4, and Tbx5, thereby enhancing gene expression associated with cardiac growth. Additionally, we describe SRC-2 as a novel regulator of PPARα expression, thus controlling critical steps in metabolic gene expression. We conclude that through regulation of cardiac transcription factor expression and activity, SRC-2 is a critical transcriptional regulator of genes important for cardiac growth, structure, and metabolism, three of the main pathways altered during the cardiac stress response.
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Affiliation(s)
- Erin L Reineke
- From the Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas 77030
| | - Ashley Benham
- the Stem Cell Engineering Department, Texas Heart Institute at St. Luke's Episcopal Hospital, Houston, Texas 77030
| | - Benjamin Soibam
- the Stem Cell Engineering Department, Texas Heart Institute at St. Luke's Episcopal Hospital, Houston, Texas 77030
| | - Erin Stashi
- From the Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas 77030
| | - Heinrich Taegtmeyer
- the Department of Internal Medicine, Division of Cardiology, The University of Texas Medical School at Houston, Houston, Texas 77030
| | - Mark L Entman
- the Department of Medicine, Division of Cardiovascular Sciences, Baylor College of Medicine, Houston, Texas 77030, and
| | - Robert J Schwartz
- the Stem Cell Engineering Department, Texas Heart Institute at St. Luke's Episcopal Hospital, Houston, Texas 77030, the Department of Biology and Biochemistry, University of Houston, Houston, Texas 77004
| | - Bert W O'Malley
- From the Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas 77030,
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Kommagani R, Szwarc MM, Kovanci E, Creighton CJ, O'Malley BW, Demayo FJ, Lydon JP. A murine uterine transcriptome, responsive to steroid receptor coactivator-2, reveals transcription factor 23 as essential for decidualization of human endometrial stromal cells. Biol Reprod 2014; 90:75. [PMID: 24571987 DOI: 10.1095/biolreprod.114.117531] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Recent data from human and mouse studies strongly support an indispensable role for steroid receptor coactivator-2 (SRC-2)-a member of the p160/SRC family of coregulators-in progesterone-dependent endometrial stromal cell decidualization, an essential cellular transformation process that regulates invasion of the developing embryo into the maternal compartment. To identify the key progesterone-induced transcriptional changes that are dependent on SRC-2 and required for endometrial decidualization, we performed comparative genome-wide transcriptional profiling of endometrial tissue RNA from ovariectomized SRC-2(flox/flox) (SRC-2(f/f) [control]) and PR(cre/+)/SRC-2(flox/flox) (SRC-2(d/d) [SRC-2-depleted]) mice, acutely treated with vehicle or progesterone. Although data mining revealed that only a small subset of the total progesterone-dependent transcriptional changes is dependent on SRC-2 (∼13%), key genes previously reported to mediate progesterone-driven endometrial stromal cell decidualization are present within this subset. Along with providing a more detailed molecular portrait of the decidual transcriptional program governed by SRC-2, the degree of functional diversity of these progesterone mediators underscores the pleiotropic regulatory role of SRC-2 in this tissue. To showcase the utility of this powerful informational resource to uncover novel signaling paradigms, we stratified the total SRC-2-dependent subset of progesterone-induced transcriptional changes in terms of novel gene expression and identified transcription factor 23 (Tcf23), a basic-helix-loop-helix transcription factor, as a new progesterone-induced target gene that requires SRC-2 for full induction. Importantly, using primary human endometrial stromal cells in culture, we demonstrate that TCF23 function is essential for progesterone-dependent decidualization, providing crucial translational support for this transcription factor as a new decidual mediator of progesterone action.
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Affiliation(s)
- Ramakrishna Kommagani
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas
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Kommagani R, Szwarc MM, Kovanci E, Gibbons WE, Putluri N, Maity S, Creighton CJ, Sreekumar A, DeMayo FJ, Lydon JP, O'Malley BW. Acceleration of the glycolytic flux by steroid receptor coactivator-2 is essential for endometrial decidualization. PLoS Genet 2013; 9:e1003900. [PMID: 24204309 PMCID: PMC3812085 DOI: 10.1371/journal.pgen.1003900] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Accepted: 09/03/2013] [Indexed: 12/23/2022] Open
Abstract
Early embryo miscarriage is linked to inadequate endometrial decidualization, a cellular transformation process that enables deep blastocyst invasion into the maternal compartment. Although much of the cellular events that underpin endometrial stromal cell (ESC) decidualization are well recognized, the individual gene(s) and molecular pathways that drive the initiation and progression of this process remain elusive. Using a genetic mouse model and a primary human ESC culture model, we demonstrate that steroid receptor coactivator-2 (SRC-2) is indispensable for rapid steroid hormone-dependent proliferation of ESCs, a critical cell-division step which precedes ESC terminal differentiation into decidual cells. We reveal that SRC-2 is required for increasing the glycolytic flux in human ESCs, which enables rapid proliferation to occur during the early stages of the decidualization program. Specifically, SRC-2 increases the glycolytic flux through induction of 6-phosphofructo-2-kinase/fructose-2, 6-bisphosphatase 3 (PFKFB3), a major rate-limiting glycolytic enzyme. Similarly, acute treatment of mice with a small molecule inhibitor of PFKFB3 significantly suppressed the ability of these animals to exhibit an endometrial decidual response. Together, these data strongly support a conserved mechanism of action by which SRC-2 accelerates the glycolytic flux through PFKFB3 induction to provide the necessary bioenergy and biomass to meet the demands of a high proliferation rate observed in ESCs prior to their differentiation into decidual cells. Because deregulation of endometrial SRC-2 expression has been associated with common gynecological disorders of reproductive-age women, this signaling pathway, involving SRC-2 and PFKFB3, promises to offer new clinical approaches in the diagnosis and/or treatment of a non-receptive uterus in patients presenting idiopathic infertility, recurrent early pregnancy loss, or increased time to pregnancy. Failure of an embryo to correctly implant into the endometrium is a common cause of pregnancy failure or early embryo miscarriage. Although advances in our understanding of oocyte and embryo development have significantly increased pregnancy success rates, these rates remain unacceptably low due in part to an endometrium that is unreceptive to embryo implantation. Using experimental mouse genetics and a primary human cell culture model, we show here that the development of a receptive endometrium requires steroid receptor coactivator-2, a factor which modulates the response of an endometrial cell to the pregnancy hormone, progesterone. Specifically, we show that SRC-2 increases progesterone-dependent glycolysis in the endometrial cell to provide energy and biomolecules for the next round of cell division. For an endometrium to be receptive to embryo implantation, specific endometrial cells (termed stromal cells) need to divide and numerically increase just prior to development of the receptive state. Therefore, SRC-2 is critical for the metabolic reprogramming of the endometrium to a receptive state, which provides the pretext for considering this factor and its metabolic targets in the design of future clinical approaches to diagnose and therapeutically treat those women at a high risk for early pregnancy loss.
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Affiliation(s)
- Ramakrishna Kommagani
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Maria M. Szwarc
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Ertug Kovanci
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas, United States of America
| | - William E. Gibbons
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Nagireddy Putluri
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
- Alkek Center for Molecular Discovery, Baylor College of Medicine, Houston, Texas, United States of America
| | - Suman Maity
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
- Alkek Center for Molecular Discovery, Baylor College of Medicine, Houston, Texas, United States of America
| | - Chad J. Creighton
- Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, United States of America
| | - Arun Sreekumar
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
- Alkek Center for Molecular Discovery, Baylor College of Medicine, Houston, Texas, United States of America
| | - Francesco J. DeMayo
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - John P. Lydon
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
- * E-mail: (JPL); (BWO)
| | - Bert W. O'Malley
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
- Alkek Center for Molecular Discovery, Baylor College of Medicine, Houston, Texas, United States of America
- * E-mail: (JPL); (BWO)
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Dasgupta S, Lonard DM, O'Malley BW. Nuclear receptor coactivators: master regulators of human health and disease. Annu Rev Med 2013; 65:279-92. [PMID: 24111892 DOI: 10.1146/annurev-med-051812-145316] [Citation(s) in RCA: 135] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Transcriptional coregulators (coactivators and corepressors) have emerged as the principal modulators of the functions of nuclear receptors and other transcription factors. During the decade since the discovery of steroid receptor coactivator-1 (SRC-1), the first authentic coregulator, more than 400 coregulators have been identified and characterized, and deciphering their function has contributed significantly to our understanding of their role in human physiology. Deregulated expression of coregulators has been implicated in diverse disease states and related pathologies. The advancement of molecular technologies has enabled us to better characterize the molecular associations of the SRC family of coactivators with other protein complexes in the context of gene regulation. These continuing discoveries not only expand our knowledge of the roles of coactivators in various human diseases but allow us to discover novel coactivator-targeting strategies for therapeutic intervention in these diseases.
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Affiliation(s)
- Subhamoy Dasgupta
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas 77030;
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Charlier TD, Seredynski AL, Niessen NA, Balthazart J. Modulation of testosterone-dependent male sexual behavior and the associated neuroplasticity. Gen Comp Endocrinol 2013; 190:24-33. [PMID: 23523709 PMCID: PMC4761263 DOI: 10.1016/j.ygcen.2013.03.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Revised: 02/26/2013] [Accepted: 03/01/2013] [Indexed: 11/19/2022]
Abstract
Steroids modulate the transcription of a multitude of genes and ultimately influence numerous aspects of reproductive behaviors. Our research investigates how one single steroid, testosterone, is able to trigger this vast number of physiological and behavioral responses. Testosterone potency can be changed locally via aromatization into 17β-estradiol which then activates estrogen receptors of the alpha and beta sub-types. We demonstrated that the independent activation of either receptor activates different aspects of male sexual behavior in Japanese quail. In addition, several studies suggest that the specificity of testosterone action on target genes transcription is related to the recruitment of specific steroid receptor coactivators. We demonstrated that the specific down-regulation of the coactivators SRC-1 or SRC-2 in the medial preoptic nucleus by antisense techniques significantly inhibits steroid-dependent male-typical copulatory behavior and the underlying neuroplasticity. In conclusion, our results demonstrate that the interaction between several steroid metabolizing enzymes, steroid receptors and their coactivators plays a key role in the control of steroid-dependent male sexual behavior and the associated neuroplasticity in quail.
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Affiliation(s)
- Thierry D Charlier
- Research Group in Behavioral Neuroendocrinology, GIGA-Neurosciences, University of Liège, Belgium.
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Zhao Y, Park S, Bagchi MK, Taylor RN, Katzenellenbogen BS. The coregulator, repressor of estrogen receptor activity (REA), is a crucial regulator of the timing and magnitude of uterine decidualization. Endocrinology 2013; 154:1349-60. [PMID: 23392257 PMCID: PMC3578990 DOI: 10.1210/en.2012-2026] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Successful implantation and maintenance of pregnancy require the transformation of uterine endometrial stromal cells into distinct decidualized cells. Although estrogen and progesterone (P4) receptors are known to be essential for decidualization, the roles of steroid receptor coregulators in this process remain largely unknown. In this study, we have established a key role for the coregulator, repressor of estrogen receptor activity (REA), in the decidualization of human endometrial stromal cells (hESCs) in vitro and of the mouse uterus in vivo. Our studies revealed that the level of REA normally decreases to half as hESC decidualization proceeds and that uterine reduction of REA in transgenic heterozygous knockout mice or small interfering RNA knockdown of REA in hESC temporally accelerated and strongly enhanced the differentiation process, as indicated by changes in cell morphology and increased expression of biomarkers of decidualization, including P4 receptor. Findings in hESC cultured in vitro with estradiol, P4, and 8-bromo-cAMP over a 10-day period mirrored observations of enhanced decidualization response in transgenic mice with heterozygous deletion of REA. Importantly, gene expression and immunohistochemical analyses revealed changes in multiple components of the Janus kinase/signal transducer and activator of transcription pathway, including marked up-regulation of signal transducer and activator of transcription 3 and IL-11, master regulators of decidualization, and the down-regulation of several suppressor of cytokine signaling family members, upon reduction of REA. The findings highlight that REA physiologically restrains endometrial stromal cell decidualization, controlling the timing and magnitude of decidualization to enable proper coordination of uterine differentiation with concurrent embryo development that is essential for implantation and optimal fertility.
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Affiliation(s)
- Yuechao Zhao
- Department of Molecular and Integrative Physiology, University of Illinois and College of Medicine at Urbana-Champaign, Urbana, IL 61801, USA
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47
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Mechanisms of implantation: strategies for successful pregnancy. Nat Med 2013; 18:1754-67. [PMID: 23223073 DOI: 10.1038/nm.3012] [Citation(s) in RCA: 859] [Impact Index Per Article: 78.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Accepted: 10/16/2012] [Indexed: 12/14/2022]
Abstract
Physiological and molecular processes initiated during implantation for pregnancy success are complex but highly organized. This review primarily highlights adverse ripple effects arising from defects during the peri-implantation period that perpetuate throughout pregnancy. These defects are reflected in aberrations in embryo spacing, decidualization, placentation and intrauterine embryonic growth, manifesting in preeclampsia, miscarriages and/or preterm birth. Understanding molecular signaling networks that coordinate strategies for successful implantation and decidualization may lead to approaches to improve the outcome of natural pregnancy and pregnancy conceived from in vitro fertilization.
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Zhang S, Lin H, Kong S, Wang S, Wang H, Wang H, Armant DR. Physiological and molecular determinants of embryo implantation. Mol Aspects Med 2013; 34:939-80. [PMID: 23290997 DOI: 10.1016/j.mam.2012.12.011] [Citation(s) in RCA: 346] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 12/25/2012] [Accepted: 12/26/2012] [Indexed: 01/19/2023]
Abstract
Embryo implantation involves the intimate interaction between an implantation-competent blastocyst and a receptive uterus, which occurs in a limited time period known as the window of implantation. Emerging evidence shows that defects originating during embryo implantation induce ripple effects with adverse consequences on later gestation events, highlighting the significance of this event for pregnancy success. Although a multitude of cellular events and molecular pathways involved in embryo-uterine crosstalk during implantation have been identified through gene expression studies and genetically engineered mouse models, a comprehensive understanding of the nature of embryo implantation is still missing. This review focuses on recent progress with particular attention to physiological and molecular determinants of blastocyst activation, uterine receptivity, blastocyst attachment and uterine decidualization. A better understanding of underlying mechanisms governing embryo implantation should generate new strategies to rectify implantation failure and improve pregnancy rates in women.
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Affiliation(s)
- Shuang Zhang
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China; Graduate School of the Chinese Academy of Sciences, Beijing 100039, PR China
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Wang W, Taylor RN, Bagchi IC, Bagchi MK. Regulation of human endometrial stromal proliferation and differentiation by C/EBPβ involves cyclin E-cdk2 and STAT3. Mol Endocrinol 2012; 26:2016-30. [PMID: 23097472 DOI: 10.1210/me.2012-1169] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
During each menstrual cycle, the human uterus undergoes a unique transformation, known as decidualization, which involves endometrial stromal proliferation and differentiation. During this process, the stromal cells are transformed into decidual cells, which produce factors that prepare the uterus for potential embryo implantation. We previously identified the transcription factor CCAAT/enhancer-binding protein (C/EBP)β as a regulator of endometrial stromal proliferation and differentiation in mice. In this study, we addressed the role of C/EBPβ in human endometrial decidualization. Using small interfering RNA targeted to C/EBPβ mRNA, we demonstrated that C/EBPβ controls the proliferation of primary human endometrial stromal cells (HESCs) by regulating the expression of several key cell cycle-regulatory factors during the G(1)-S phase transition. Additionally, loss of C/EBPβ expression blocked the differentiation of HESCs in response to estrogen, progesterone, and cyclic AMP. Gene expression profiling of normal and C/EBPβ-deficient HESCs revealed that the receptor for the cytokine IL-11 and its downstream signal transducer signal transducer and activator of transcription 3 (STAT3) are targets of regulation by C/EBPβ. Chromatin immunoprecipitation analysis indicated that C/EBPβ controls the expression of STAT3 gene by directly interacting with a distinct regulatory sequence in its 5'-flanking region. Attenuation of STAT3 mRNA expression in HESCs resulted in markedly reduced differentiation of these cells, indicating an important role for STAT3 in decidualization. Gene expression profiling, using STAT3-deficient HESCs, showed an extensive overlap of pathways downstream of STAT3 and C/EBPβ during stromal cell differentiation. Collectively, these findings revealed a novel functional link between C/EBPβ and STAT3 that is a critical regulator of endometrial differentiation in women.
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Affiliation(s)
- Wei Wang
- Department of Molecular and Integrative Physiology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
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Park S, Yoon S, Zhao Y, Park SE, Liao L, Xu J, Lydon JP, DeMayo FJ, O'Malley BW, Bagchi MK, Katzenellenbogen BS. Uterine development and fertility are dependent on gene dosage of the nuclear receptor coregulator REA. Endocrinology 2012; 153:3982-94. [PMID: 22585830 PMCID: PMC3404350 DOI: 10.1210/en.2012-1044] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Although the effectiveness of nuclear hormone-receptor complexes is known to depend on coregulator partner proteins, relatively little is known about the roles of coregulators in uterine development and early stages of pregnancy and implantation. Because conventional genetic deletion of the coregulator, repressor of estrogen receptor activity (REA), was embryonic lethal, we here study REA conditional knockout mice generated by cre-loxP recombination, in which REA function was abrogated only in progesterone receptor-expressing tissues, to define the roles of REA in postembryonic stages and in a tissue-specific manner. We find that REA has gene dose-dependent activity impacting uterine development and fertility. Conditional homozygous mutant (REA(d/d)) mice developed to adulthood and showed normal ovarian function, but females were infertile with severely compromised uterine development and function characterized by cell cycle arrest, apoptosis, and altered adenogenesis (endometrial gland morphogenesis), resulting in failure of implantation and decidualization. By contrast, mice heterozygous for REA (REA(f/d)) had a very different phenotype, with estradiol treatment resulting in hyperstimulated, large uteri showing increased proliferation of luminal epithelial cells, and enhanced fluid imbibition associated with altered regulation of aquaporins. These REA(f/d) female mice showed a subfertility phenotype with reduced numbers and sizes of litters. These findings highlight that uterine development and regulation of estrogen receptor activities show a bimodal dependence on the gene dosage of REA. Optimal uterine development and functional activities require the normal gene dosage of REA, with partial or complete deletion resulting in hyperresponsiveness or underresponsiveness to hormone and subfertility or infertility, respectively.
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Affiliation(s)
- Sunghee Park
- Department of Molecular and Integrative Physiology, University of Illinois at Urbana-Champaign, 524 Burrill Hall, 407 South Goodwin Avenue, Urbana, Illinois 61801-3704, USA
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