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Wang J, Wang S, Fang Z, Zhao J, Zhang G, Guo Y, Wang Q, Jiang Z, Zhong H, Hou W. Estrogen receptor GPR30 in the anterior cingulate cortex mediates exacerbated neuropathic pain in ovariectomized mice. Brain Res 2024; 1829:148798. [PMID: 38403038 DOI: 10.1016/j.brainres.2024.148798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 02/02/2024] [Accepted: 02/06/2024] [Indexed: 02/27/2024]
Abstract
Menopausal women experience neuropathic pain 63% more frequently than men do, which may attribute to the estrogen withdrawal. However, the underlying mechanisms remain unclear. Here, the role of estrogen receptors (ERs) in ovariectomized (OVX) female mice following chronic constriction injury (CCI) was investigated. With 17β-estradiol (E2) supplemented, aggravated mechanical allodynia in OVX mice could be significantly alleviated, particularly after intra-anterior cingulate cortex (ACC) E2 delivery. Pharmacological interventions further demonstrated that the agonist of G-protein-coupled estrogen receptor 30 (GPR30), rather than ERα or ERβ in the ACC, exhibited the similar analgesic effect as E2, whereas antagonist of GPR30 exacerbated allodynia. Furthermore, OVX surgery reduced GPR30 expression in the ACC, which could be restored with estrogen supplementation. Selective downregulation of GPR30 in the ACC of naïve female mice induces mechanical allodynia, whereas GPR30 overexpression in the ACC remarkedly alleviated OVX-exacerbated allodynia. Collectively, estrogen withdrawal could downregulate the ACC GPR30 expression, resulting in exacerbated neuropathic pain. Our findings highlight the importance of GPR30 in the ACC in aggravated neuropathic pain during menopause, and offer a potential therapeutic candidate for neuropathic pain management in menopausal women.
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Affiliation(s)
- Jiajia Wang
- Department of Anesthesiology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Shiquan Wang
- Department of Anesthesiology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Zongping Fang
- Department of Anesthesiology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Jianshuai Zhao
- Department of Anesthesiology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Guoqing Zhang
- Department of Cardiovasology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, China
| | - Yaru Guo
- Department of Anesthesiology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Qun Wang
- Department of Anesthesiology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Zhenhua Jiang
- Department of Anesthesiology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, China; Department of Nursing, Fourth Military Medical University, Xi'an, Shaanxi Province, 710032, China
| | - Haixing Zhong
- Department of Anesthesiology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, China.
| | - Wugang Hou
- Department of Anesthesiology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, China.
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Hankerd K, Koo H, McDonough KE, Wang J, Pariyar R, Tang SJ, Chung JM, La JH. Gonadal hormone-dependent nociceptor sensitization maintains nociplastic pain state in female mice. Pain 2023; 164:402-412. [PMID: 35975896 PMCID: PMC9755459 DOI: 10.1097/j.pain.0000000000002715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 06/02/2022] [Indexed: 02/06/2023]
Abstract
ABSTRACT Nociplastic pain conditions develop predominantly in women. We recently established a murine nociplastic pain model by applying postinjury thermal (40°C) stimulation to an injured (capsaicin-injected) area, triggering a transition to a nociplastic pain state manifesting as persistent mechanical hypersensitivity outside of the previously injured area. The nociplastic pain state was centrally maintained by spinal microglia in males but peripherally by ongoing afferent activity at the previously injured area in females. Here, we investigated whether gonadal hormones are critical for the development of this peripherally maintained nociplastic pain state in females. Although the transition to a nociplastic pain state still occurred in ovariectomized females, the pain state was maintained neither by ongoing afferent activity at the previously injured area nor by spinal microglia. Estradiol reconstitution a week before the injury plus postinjury stimulation, but not after the transition had already occurred, restored the development of peripherally maintained nociplastic mechanical hypersensitivity in ovariectomized females. G protein-coupled estrogen receptor antagonism during the transition phase mimicked ovariectomy in gonad-intact females, whereas the receptor antagonism after the transition gradually alleviated the nociplastic mechanical hypersensitivity. At the previously injured area, afferents responsive to allyl isothiocyanate (AITC), a TRPA1 agonist, contributed to the maintenance of nociplastic mechanical hypersensitivity in gonad-intact females. In ex vivo skin-nerve preparations, only AITC-responsive afferents from the nociplastic pain model in gonad-intact females showed ongoing activities greater than control. These results suggest that gonadal hormones are critical for peripherally maintained nociplastic pain state in females by sensitizing AITC-responsive afferents to be persistently active.
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Affiliation(s)
- Kali Hankerd
- Department of Neuroscience, Cell Biology, and Anatomy, University of Texas Medical Branch, Galveston, TX, USA
| | - Ho Koo
- Department of Neuroscience, Cell Biology, and Anatomy, University of Texas Medical Branch, Galveston, TX, USA
| | - Kathleen E McDonough
- Department of Neuroscience, Cell Biology, and Anatomy, University of Texas Medical Branch, Galveston, TX, USA
| | - Jigong Wang
- Department of Neuroscience, Cell Biology, and Anatomy, University of Texas Medical Branch, Galveston, TX, USA
| | - Ramesh Pariyar
- Department of Neuroscience, Cell Biology, and Anatomy, University of Texas Medical Branch, Galveston, TX, USA
| | - Shao-Jun Tang
- Stony Brook University Pain and Analgesia Research Center (SPARC) and Department of Anesthesiology, Stony Brook University, Stony Brook, NY, USA
| | - Jin Mo Chung
- Department of Neuroscience, Cell Biology, and Anatomy, University of Texas Medical Branch, Galveston, TX, USA
| | - Jun-Ho La
- Department of Neuroscience, Cell Biology, and Anatomy, University of Texas Medical Branch, Galveston, TX, USA
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Zheng W, Huang X, Wang J, Gao F, Chai Z, Zeng J, Li S, Yu C. The chronification mechanism of orofacial inflammatory pain: Facilitation by GPER1 and microglia in the rostral ventral medulla. Front Mol Neurosci 2023; 15:1078309. [PMID: 36683848 PMCID: PMC9853019 DOI: 10.3389/fnmol.2022.1078309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 12/12/2022] [Indexed: 01/08/2023] Open
Abstract
Background Chronic orofacial pain is a common and incompletely defined clinical condition. The role of G protein-coupled estrogen receptor 1 (GPER1) as a new estrogen receptor in trunk and visceral pain regulation is well known. Here, we researched the role of GPER1 in the rostral ventral medulla (RVM) during chronic orofacial pain. Methods and Results A pain model was established where rats were injected in the temporomandibular joint with complete Freund's adjuvant (CFA) to simulate chronic orofacial pain. Following this a behavioral test was performed to establish pain threshold and results showed that the rats injected with CFA had abnormal pain in the orofacial regions. Additional Immunostaining and blot analysis indicated that microglia were activated in the RVM and GPER1 and c-Fos were significantly upregulated in the rats. Conversely, when the rats were injected with G15 (a GPER1 inhibitor) the abnormal pain the CFA rats were experiencing was alleviated and microglia activation was prevented. In addition, we found that G15 downregulated the expression of phospholipase C (PLC) and protein kinase C (PKC), inhibited the expression of GluA1, restores aberrant synaptic plasticity and reduces the overexpression of the synapse-associated proteins PSD-95 and syb-2 in the RVM of CFA rats. Conclusion The findings indicate that GPER1 mediates chronic orofacial pain through modulation of the PLC-PKC signal pathway, sensitization of the RVM region and enhancement of neural plasticity. These results of this study therefore suggest that GPER1 may serve as a potential therapeutic target for chronic orofacial pain.
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Affiliation(s)
- Wenwen Zheng
- The Affiliated Hospital of Stomatology, Chongqing Medical University, Chongqing, China
| | - Xilu Huang
- The Affiliated Hospital of Stomatology, Chongqing Medical University, Chongqing, China
| | - Jing Wang
- The Affiliated Hospital of Stomatology, Chongqing Medical University, Chongqing, China
| | - Feng Gao
- The Sixth People’s Hospital of Chongqing, Anesthesiology, Chongqing, China
| | - Zhaowu Chai
- The Affiliated Hospital of Stomatology, Chongqing Medical University, Chongqing, China
| | - Jie Zeng
- The Affiliated Hospital of Stomatology, Chongqing Medical University, Chongqing, China
| | - Sisi Li
- The Affiliated Hospital of Stomatology, Chongqing Medical University, Chongqing, China
| | - Cong Yu
- The Affiliated Hospital of Stomatology, Chongqing Medical University, Chongqing, China,*Correspondence: Cong Yu, ✉
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Modulatory Effects of Estradiol and Its Mixtures with Ligands of GPER and PPAR on MAPK and PI3K/Akt Signaling Pathways and Tumorigenic Factors in Mouse Testis Explants and Mouse Tumor Leydig Cells. Biomedicines 2022; 10:biomedicines10061390. [PMID: 35740412 PMCID: PMC9219706 DOI: 10.3390/biomedicines10061390] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/02/2022] [Accepted: 06/07/2022] [Indexed: 11/16/2022] Open
Abstract
The present study was designed to evaluate how estradiol alone or in combination with G protein-coupled estrogen receptor (GPER) agonists and GPER and peroxisome proliferator-activated receptor (PPAR) antagonists alter the expression of tumor growth factor β (TGF-β), cyclooxygenase-2 (COX-2), hypoxia inducible factor 1-alpha (HIF-1α), and vascular endothelial growth factor (VEGF) in mouse testis explants and MA-10 mouse tumor Leydig cells. In order to define the hormone-associated signaling pathway, the expression of MAPK and PI3K/Akt was also examined. Tissue explants and cells were treated with estradiol as well as GPER agonist (ICI 182,780), GPER antagonist (G-15), PPARα antagonist (GW6471), and PPARγ antagonist (T00709072) in various combinations. First, we showed that in testis explants GPER and PPARα expressions were activated by the GPER agonist and estradiol (either alone or in mixtures), whereas PPARγ expression was activated only by GPER agonist. Second, increased TGF-β expression and decreased COX-2 expression were found in all experimental groups of testicular explants and MA-10 cells, except for up-regulated COX-2 expression in estradiol-treated cells, compared to respective controls. Third, estradiol treatment led to elevated expression of HIF-1α and VEGF, while their lower levels versus control were noted in the remaining groups of explants. Finally, we demonstrated the up-regulation of MAPK and PI3Kp85/Akt expressions in estradiol-treated groups of both ex vivo and in vitro models, whereas estradiol in mixtures with compounds of agonistic or antagonistic properties either up-regulated or down-regulated signaling kinase expression levels. Our results suggest that a balanced estrogen level and its action together with proper GPER and PPAR signaling play a key role in the maintenance of testis homeostasis. Moreover, changes in TGF-β and COX-2 expressions (that disrupted estrogen pathway) as well as disturbed GPER-PPAR signaling observed after estradiol treatment may be involved in testicular tumorigenesis.
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5
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McHann MC, Blanton HL, Guindon J. Role of sex hormones in modulating breast and ovarian cancer associated pain. Mol Cell Endocrinol 2021; 533:111320. [PMID: 34033890 PMCID: PMC8263503 DOI: 10.1016/j.mce.2021.111320] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 04/16/2021] [Accepted: 05/09/2021] [Indexed: 01/18/2023]
Abstract
According to the National Cancer Institute in 2020 there will be an estimated 21,750 new ovarian cancer cases and 276,480 new breast cancer cases. Both breast and ovarian cancer are hormone dependent cancers, meaning they cannot grow without the presence of hormones. The two most studied hormones in these two cancers are estrogen and progesterone, which are also involved in the modulation of pain. The incidence of pain in breast and ovarian cancer is very high. Research about mechanisms involved in modulation of pain by hormones are still being debated, as some studies find estrogen to be anti-nociceptive and others pro-nociceptive in pain studies. Moreover, analgesic treatments for breast and ovarian cancer-associated pain are limited and often ineffective. In this review, we will focus on estrogen and progesterone mechanisms of action in modulation of pain and cancer. We will also discuss new treatment options for these types of cancer and associated-pain.
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Affiliation(s)
- Melissa C McHann
- Department of Pharmacology and Neuroscience at Texas Tech University Health Sciences Center, USA
| | - Henry L Blanton
- Department of Pharmacology and Neuroscience at Texas Tech University Health Sciences Center, USA
| | - Josée Guindon
- Department of Pharmacology and Neuroscience at Texas Tech University Health Sciences Center, USA.
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6
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Mallet C, Boudieu L, Lamoine S, Coudert C, Jacquot Y, Eschalier A. The Antitumor Peptide ERα17p Exerts Anti-Hyperalgesic and Anti-Inflammatory Actions Through GPER in Mice. Front Endocrinol (Lausanne) 2021; 12:578250. [PMID: 33815268 PMCID: PMC8011567 DOI: 10.3389/fendo.2021.578250] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 02/08/2021] [Indexed: 12/12/2022] Open
Abstract
Persistent inflammation and persistent pain are major medical, social and economic burdens. As such, related pharmacotherapy needs to be continuously improved. The peptide ERα17p, which originates from a part of the hinge region/AF2 domain of the human estrogen receptor α (ERα), exerts anti-proliferative effects in breast cancer cells through a mechanism involving the hepta-transmembrane G protein-coupled estrogen receptor (GPER). It is able to decrease the size of xenografted human breast tumors, in mice. As GPER has been reported to participate in pain and inflammation, we were interested in exploring the potential of ERα17p in this respect. We observed that the peptide promoted anti-hyperalgesic effects from 2.5 mg/kg in a chronic mice model of paw inflammation induced by the pro-inflammatory complete Freund's adjuvant (CFA). This action was abrogated by the specific GPER antagonist G-15, leading to the conclusion that a GPER-dependent mechanism was involved. A systemic administration of a Cy5-labeled version of the peptide allowed its detection in both, the spinal cord and brain. However, ERα17p-induced anti-hyperalgesia was detected at the supraspinal level, exclusively. In the second part of the study, we have assessed the anti-inflammatory action of ERα17p in mice using a carrageenan-evoked hind-paw inflammation model. A systemic administration of ERα17p at a dose of 2.5 mg/kg was responsible for reduced paw swelling. Overall, our work strongly suggests that GPER inverse agonists, including ERα17p, could be used to control hyperalgesia and inflammation.
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Affiliation(s)
- Christophe Mallet
- Université Clermont Auvergne, INSERM, NEURO-DOL Basics & Clinical Pharmacology of Pain, Clermont-Ferrand, France
- ANALGESIA Institute, Faculty of Medicine, Clermont-Ferrand, France
- *Correspondence: Christophe Mallet,
| | - Ludivine Boudieu
- Université Clermont Auvergne, INSERM, NEURO-DOL Basics & Clinical Pharmacology of Pain, Clermont-Ferrand, France
- ANALGESIA Institute, Faculty of Medicine, Clermont-Ferrand, France
| | - Sylvain Lamoine
- Université Clermont Auvergne, INSERM, NEURO-DOL Basics & Clinical Pharmacology of Pain, Clermont-Ferrand, France
- ANALGESIA Institute, Faculty of Medicine, Clermont-Ferrand, France
| | - Catherine Coudert
- Université Clermont Auvergne, INSERM, NEURO-DOL Basics & Clinical Pharmacology of Pain, Clermont-Ferrand, France
- ANALGESIA Institute, Faculty of Medicine, Clermont-Ferrand, France
| | - Yves Jacquot
- Université de Paris, Faculté de Pharmacie de Paris, CiTCoM, CNRS UMR 8038, INSERM U1268, Paris, France
| | - Alain Eschalier
- Université Clermont Auvergne, INSERM, NEURO-DOL Basics & Clinical Pharmacology of Pain, Clermont-Ferrand, France
- ANALGESIA Institute, Faculty of Medicine, Clermont-Ferrand, France
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Li ZL, Xue Y, Tao ZY, Du WZ, Jiang YG, Cao DY. Spinal 5-HT 3 receptor contributes to somatic hyperalgesia induced by sub-chronic stress. Mol Pain 2020; 15:1744806919859723. [PMID: 31184246 PMCID: PMC6613060 DOI: 10.1177/1744806919859723] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Zhuo-Lin Li
- 1 Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Research Center of Stomatology, Xi'an Jiaotong University College of Stomatology, Xi'an, Shaanxi, P. R. China.,2 Department of Endodontics, Xi'an Jiaotong University College of Stomatology, Xi'an, Shaanxi, P. R. China
| | - Yang Xue
- 1 Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Research Center of Stomatology, Xi'an Jiaotong University College of Stomatology, Xi'an, Shaanxi, P. R. China
| | - Zhuo-Ying Tao
- 1 Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Research Center of Stomatology, Xi'an Jiaotong University College of Stomatology, Xi'an, Shaanxi, P. R. China
| | - Wen-Zhi Du
- 1 Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Research Center of Stomatology, Xi'an Jiaotong University College of Stomatology, Xi'an, Shaanxi, P. R. China
| | - Yue-Gui Jiang
- 2 Department of Endodontics, Xi'an Jiaotong University College of Stomatology, Xi'an, Shaanxi, P. R. China
| | - Dong-Yuan Cao
- 1 Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Research Center of Stomatology, Xi'an Jiaotong University College of Stomatology, Xi'an, Shaanxi, P. R. China
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8
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Jiang M, Liu Y, Wu H, Ma Z, Gu X. High Estrogen Level Modifies Postoperative Hyperalgesia via GPR30 and MMP-9 in Dorsal Root Ganglia Neurons. Neurochem Res 2020; 45:1661-1673. [PMID: 32303987 DOI: 10.1007/s11064-020-03032-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 03/17/2020] [Accepted: 04/10/2020] [Indexed: 12/18/2022]
Abstract
The cycling of sex hormones is one of the factors affecting pain in females, and the mechanisms are not fully understood. G-protein coupled estrogen receptor 30 (GPR30) is the estrogen receptor known to be involved in mechanical hyperalgesia. Studies have demonstrated that matrix metalloproteinase-9 (MMP-9) is a critical component in peripheral/central nervous system hypersensitivity and neuroinflammation, both of which participate in hyperalgesia. Here, ovariectomized rats were treated with low or high dose estrogen replacement, and then plantar incisions were made. Subsequently, mechanical allodynia was evaluated by determining the paw withdrawal mechanical threshold before and after the incision. In rats with incisions, high estrogen levels induced postoperative hyperalgesia and upregulation of GPR30 and MMP-9 in dorsal root ganglia (DRGs). MMP-9 was expressed primarily in DRG neurons co-expressing GPR30, and led to the activation of IL-1β. After intrathecal injection of the GPR30 agonist G1, female rats with low estrogen and plantar incisions continued to exhibit significant hyperalgesia until 48 h post-incision. In high estrogen level rats with plantar incisions, intrathecal injection of GPR30 antagonist G15 significantly attenuated postoperative hyperalgesia. Intraperitoneal injection of N-acetyl-cysteine, a source of cysteine that prevents the oxidation of cysteine residues on MMP-9, significantly relieved high estrogen-induced postoperative hyperalgesia via suppression of MMP-9 and IL-1β activation in DRGs. These results demonstrate that high estrogen level in rats with incisions elicit GPR30 and MMP-9 upregulation in DRGs and subsequently activate IL-1β, leading to induced postoperative hyperalgesia.
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Affiliation(s)
- Ming Jiang
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, Jiangsu, China
| | - Yue Liu
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, Jiangsu, China
| | - Hao Wu
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, Jiangsu, China
| | - Zhengliang Ma
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, Jiangsu, China
| | - Xiaoping Gu
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, Jiangsu, China.
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9
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Kotula-Balak M, Pawlicki P, Milon A, Tworzydlo W, Sekula M, Pacwa A, Gorowska-Wojtowicz E, Bilinska B, Pawlicka B, Wiater J, Zarzycka M, Galas J. The role of G-protein-coupled membrane estrogen receptor in mouse Leydig cell function-in vivo and in vitro evaluation. Cell Tissue Res 2018; 374:389-412. [PMID: 29876633 PMCID: PMC6209072 DOI: 10.1007/s00441-018-2861-7] [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: 02/14/2018] [Accepted: 05/14/2018] [Indexed: 12/27/2022]
Abstract
In this study, G-coupled estrogen receptor (GPER) was inactivated, by treatment with antagonist (G-15), in testes of C57BL/6 mice: immature (3 weeks old), mature (3 months old) and aged (1.5 years old) (50 μg/kg bw), as well as MA-10 mouse Leydig cells (10 nM/24 h) alone or in combination with 17β-estradiol or antiestrogen (ICI 182,780). In G-15-treated mice, overgrowth of interstitial tissue was found in both mature and aged testes. Depending on age, differences in structure and distribution of various Leydig cell organelles were observed. Concomitantly, modulation of activity of the mitochondria and tubulin microfibers was revealed. Diverse and complex GPER regulation at the mRNA level and protein of estrogen signaling molecules (estrogen receptor α and β; ERα, ERβ and cytochrome P450 aromatase; P450arom) in G-15 Leydig cells was found in relation to age and the experimental system utilized (in vivo and in vitro). Changes in expression patterns of ERs and P450arom, as well as steroid secretion, reflected Leydig cell heterogeneity to estrogen regulation throughout male life including cell physiological status.We show, for the first time, GPER with ERs and P450arom work in tandem to maintain Leydig cell architecture and supervise its steroidogenic function by estrogen during male life. Full set of estrogen signaling molecules, with involvement of GPER, is crucial for proper Leydig cell function where each molecule acts in a specific and/or complementary manner. Further understanding of the mechanisms by which GPER controls Leydig cells with special regard to male age, cell of origin and experimental system used is critical for predicting and preventing testis steroidogenic disorders based on perturbations in estrogen signaling.
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Affiliation(s)
- M Kotula-Balak
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Jagiellonian University in Kraków, Gronostajowa 9, 30-387, Krakow, Poland.
| | - P Pawlicki
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Jagiellonian University in Kraków, Gronostajowa 9, 30-387, Krakow, Poland
| | - A Milon
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Jagiellonian University in Kraków, Gronostajowa 9, 30-387, Krakow, Poland
| | - W Tworzydlo
- Department of Developmental Biology and Invertebrate Morphology, Institute of Zoology and Biomedical Research, Jagiellonian University in Kraków, Gronostajowa 9, 30-387, Krakow, Poland
| | - M Sekula
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Jagiellonian University in Kraków, Gronostajowa 9, 30-387, Krakow, Poland
| | - A Pacwa
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Jagiellonian University in Kraków, Gronostajowa 9, 30-387, Krakow, Poland
| | - E Gorowska-Wojtowicz
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Jagiellonian University in Kraków, Gronostajowa 9, 30-387, Krakow, Poland
| | - B Bilinska
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Jagiellonian University in Kraków, Gronostajowa 9, 30-387, Krakow, Poland
| | - B Pawlicka
- Department of Genetics and Evolutionism, Institute of Zoology and Biomedical Research, Jagiellonian University in Kraków, Gronostajowa 9, 30-387, Krakow, Poland
| | - J Wiater
- Department of Cell Biology and Imaging, Institute of Zoology and Biomedical Research, Jagiellonian University in Kraków, Gronostajowa 9, 30-387, Krakow, Poland
| | - M Zarzycka
- Medical Biochemistry, Jagiellonian University Medical College, Kopernika 7, 31-034, Krakow, Poland
| | - J Galas
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Jagiellonian University in Kraków, Gronostajowa 9, 30-387, Krakow, Poland
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10
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Sandweiss AJ, Cottier KE, McIntosh MI, Dussor G, Davis TP, Vanderah TW, Largent-Milnes TM. 17-β-Estradiol induces spreading depression and pain behavior in alert female rats. Oncotarget 2017; 8:114109-114122. [PMID: 29371973 PMCID: PMC5768390 DOI: 10.18632/oncotarget.23141] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 11/26/2017] [Indexed: 01/17/2023] Open
Abstract
AIMS Test the putative contribution of 17-β-estradiol in the development of spreading depression (SD) events and head pain in awake, non-restrained rats. MAIN METHODS Female, Sprague-Dawley rats were intact or underwent ovariectomy followed one week later by surgery to place electrodes onto the dura to detect epidural electroencephalographic activity (dEEG). dEEG activity was recorded two days later for 12 hours after systemic administration of 17-β-estradiol (180 μg/kg, i.p.). A separate set of rats were observed for changes in exploratory, ambulatory, fine, and rearing behaviors; periorbital allodynia was also assessed. KEY FINDINGS A bolus of 17-β-estradiol significantly elevated serum estrogen levels, increased SD episodes over a 12-hour recording period and decreased rearing behaviors in ovariectomized rats. Pre-administration of ICI 182,780, an estrogen receptor antagonist, blocked 17-β-estradiol-evoked SD events and pain behaviors; similar results were observed when the antimigraine therapeutic sumatriptan was used. SIGNIFICANCE These data indicate that an estrogen receptor-mediated mechanism contributes to SD events in ovariectomized rats and pain behaviors in both ovariectomized -and intact- rats. This suggests that estrogen plays a different role in each phenomenon of migraine where intense fluctuations in concentration may influence SD susceptibility. This is the first study to relate estrogen peaks to SD development and pain behaviors in awake, freely moving female rats, establishing a framework for future preclinical migraine studies.
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Affiliation(s)
- Alexander J. Sandweiss
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, Arizona 85724, USA
| | - Karissa E. Cottier
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, Arizona 85724, USA
| | - Mary I. McIntosh
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, Arizona 85724, USA
| | - Gregory Dussor
- School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, Texas 75080, USA
| | - Thomas P. Davis
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, Arizona 85724, USA
| | - Todd W. Vanderah
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, Arizona 85724, USA
| | - Tally M. Largent-Milnes
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, Arizona 85724, USA
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11
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Payrits M, Sághy É, Cseko K, Pohóczky K, Bölcskei K, Ernszt D, Barabás K, Szolcsányi J, Ábrahám IM, Helyes Z, Szoke É. Estradiol Sensitizes the Transient Receptor Potential Vanilloid 1 Receptor in Pain Responses. Endocrinology 2017; 158:3249-3258. [PMID: 28977586 DOI: 10.1210/en.2017-00101] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 06/29/2017] [Indexed: 11/19/2022]
Abstract
Sex differences exist in chronic pain pathologies, and gonadal estradiol (E2) alters the pain sensation. The nocisensor transient receptor potential vanilloid 1 (TRPV1) receptor plays a critical role in triggering pain. Here we examined the impact of E2 on the function of TRPV1 receptor in mice sensory neurons in vitro and in vivo. Both mechano- and thermonociceptive thresholds of the plantar surface of the paw of female mice were significantly lower in proestrus compared with the estrus phase. These thresholds were higher in ovariectomized (OVX) mice and significantly lower in sham-operated mice in proestrus compared with the sham-operated mice in estrus phase. This difference was absent in TRPV1 receptor-deficient mice. Furthermore, E2 potentiated the TRPV1 receptor activation-induced mechanical hyperalgesia in OVX mice. Long pretreatment (14 hours) with E2 induced a significant increase in TRPV1 receptor messenger RNA expression and abolished the capsaicin-induced TRPV1 receptor desensitization in primary sensory neurons. The short E2 incubation (10 minutes) also prevented the desensitization, which reverted after coadministration of E2 and the tropomyosin-related kinase A (TrkA) receptor inhibitor. Our study provides in vivo and in vitro evidence for E2-induced TRPV1 receptor upregulation and sensitization mediated by TrkAR via E2-induced genomic and nongenomic mechanisms. The sensitization and upregulation of TRPV1 receptor by E2 in sensory neurons may explain the greater pain sensitivity in female mice.
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Affiliation(s)
- Maja Payrits
- Department of Pharmacology and Pharmacotherapy, University of Pécs Medical School, H-7624 Pécs, Hungary
- Janos Szentagothai Research Centre, University of Pécs, H-7624 Pécs, Hungary
| | - Éva Sághy
- Department of Pharmacology and Pharmacotherapy, University of Pécs Medical School, H-7624 Pécs, Hungary
- Janos Szentagothai Research Centre, University of Pécs, H-7624 Pécs, Hungary
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, H-1089, Budapest, Hungary
| | - Kata Cseko
- Department of Pharmacology and Pharmacotherapy, University of Pécs Medical School, H-7624 Pécs, Hungary
- Janos Szentagothai Research Centre, University of Pécs, H-7624 Pécs, Hungary
| | - Krisztina Pohóczky
- Department of Pharmacology and Pharmacotherapy, University of Pécs Medical School, H-7624 Pécs, Hungary
- Janos Szentagothai Research Centre, University of Pécs, H-7624 Pécs, Hungary
| | - Kata Bölcskei
- Department of Pharmacology and Pharmacotherapy, University of Pécs Medical School, H-7624 Pécs, Hungary
- Janos Szentagothai Research Centre, University of Pécs, H-7624 Pécs, Hungary
| | - Dávid Ernszt
- Janos Szentagothai Research Centre, University of Pécs, H-7624 Pécs, Hungary
- Department of Pharmaceutical Biotechnology, University of Pécs, Medical School, H-7624 Pécs, Hungary
| | - Klaudia Barabás
- Janos Szentagothai Research Centre, University of Pécs, H-7624 Pécs, Hungary
- Institute of Physiology, University of Pécs, Medical School, H-7624 Pécs, Hungary
| | - János Szolcsányi
- Department of Pharmacology and Pharmacotherapy, University of Pécs Medical School, H-7624 Pécs, Hungary
- Janos Szentagothai Research Centre, University of Pécs, H-7624 Pécs, Hungary
| | - István M Ábrahám
- Janos Szentagothai Research Centre, University of Pécs, H-7624 Pécs, Hungary
- Institute of Physiology, University of Pécs, Medical School, H-7624 Pécs, Hungary
- MTA-PTE NAP B Molecular Neuroendocrinology Research Group-Hungary, H-7624 Pécs, Hungary
- Centre for Neuroscience, University of Pécs, H-7624 Pécs, Hungary
| | - Zsuzsanna Helyes
- Department of Pharmacology and Pharmacotherapy, University of Pécs Medical School, H-7624 Pécs, Hungary
- Janos Szentagothai Research Centre, University of Pécs, H-7624 Pécs, Hungary
- Centre for Neuroscience, University of Pécs, H-7624 Pécs, Hungary
- MTA-PTE NAP B Chronic Pain Research Group-Hungary, H-7624 Pécs, Hungary
| | - Éva Szoke
- Department of Pharmacology and Pharmacotherapy, University of Pécs Medical School, H-7624 Pécs, Hungary
- Janos Szentagothai Research Centre, University of Pécs, H-7624 Pécs, Hungary
- MTA-PTE NAP B Chronic Pain Research Group-Hungary, H-7624 Pécs, Hungary
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12
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Lu CL, Herndon C. New roles for neuronal estrogen receptors. Neurogastroenterol Motil 2017; 29. [PMID: 28597596 DOI: 10.1111/nmo.13121] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Accepted: 05/02/2017] [Indexed: 02/08/2023]
Abstract
Estrogens encompass steroid hormones which display physiological roles not only in the female reproductive system but also in other organ systems of non-reproductive controls, including the peripheral and central nervous systems. Traditionally, estrogen signals in neurons through a "genomic pathway": binding to estrogen receptors (ERs) which then interact with nuclear estrogen response elements to initiate transcription. This effect is usually delayed at onset (within several hours to days) and prolonged in duration. In addition to these classical ERs, recent data suggest that other ERs function through pregenomic signaling pathways. Estrogen's pregenomic pathways cause intracellular changes within seconds to minutes and go through a novel, 7-transmembrane spanning G protein-coupled receptor (GPER, formerly known as GPR30). In this review, we will briefly cover the cellular and molecular mechanisms of GPER and then discuss newly discovered roles of GPER in cognition, depression, homeostasis, pain processing, and other associated neuronal functions.
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Affiliation(s)
- C-L Lu
- Institute of Brain Science, Faculty of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan.,Endoscopy Center for Diagnosis and Treatment, Taipei Veterans General Hospital, Taipei, Taiwan.,Division of Gastroenterology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - C Herndon
- University of California, Los Angeles
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13
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Ma JN, McFarland K, Olsson R, Burstein ES. Estrogen Receptor Beta Selective Agonists as Agents to Treat Chemotherapeutic-Induced Neuropathic Pain. ACS Chem Neurosci 2016; 7:1180-7. [PMID: 27456785 DOI: 10.1021/acschemneuro.6b00183] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Chemotherapy-induced neuropathic pain (CINP) remains a major unmet medical need. Estrogen receptor beta (ERβ)-selective agonists represent a novel strategy for treating CINP because they are neuroprotective and may also have anticancer activity. We confirmed that ERβ-selective agonists have antiallodynic effects in the spinal nerve ligation model of neuropathic pain. We then showed that structurally diverse ERβ-selective agonists also relieved allodynia in CINP caused by taxol, oxaliplatin, and vincristine. These effects were receptor subtype specific and mediated by ERβ receptors as ERα-selective and nonselective estrogen agonists were inactive, a mixture of an ERβ and ERα agonist was inactive, and ERβ-selective antagonists blocked the effects of the ERβ-selective agonists. The efficacy and potency of ERβ-agonists was greater in male rats than females. To address the possibility that AC-186 might stimulate proliferation of cancers, rendering it unsuitable for treating CINP, we evaluated proliferative effects of AC-186 on prostate cancer cells and found it inhibited growth (LNCaP cells) or had no effect (PC3 cells) on these cells. Thus, ERβ-selective agonists exhibit potential for treating CINP.
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Affiliation(s)
- Jian-Nong Ma
- ACADIA Pharmaceuticals Inc., 3611 Valley Center Drive, Ste. 300, San Diego, California 92130, United States
| | - Krista McFarland
- ACADIA Pharmaceuticals Inc., 3611 Valley Center Drive, Ste. 300, San Diego, California 92130, United States
| | - Roger Olsson
- Chemical Biology & Therapeutics, Department of Experimental Medical Science, Lund University, S-221 84 Lund, Sweden
| | - Ethan S. Burstein
- ACADIA Pharmaceuticals Inc., 3611 Valley Center Drive, Ste. 300, San Diego, California 92130, United States
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