1
|
Lin Z, Hua G, Hu X. Lipid metabolism associated crosstalk: the bidirectional interaction between cancer cells and immune/stromal cells within the tumor microenvironment for prognostic insight. Cancer Cell Int 2024; 24:295. [PMID: 39174964 PMCID: PMC11342506 DOI: 10.1186/s12935-024-03481-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Accepted: 08/13/2024] [Indexed: 08/24/2024] Open
Abstract
Cancer is closely related to lipid metabolism, with the tumor microenvironment (TME) containing numerous lipid metabolic interactions. Cancer cells can bidirectionally interact with immune and stromal cells, the major components of the TME. This interaction is primarily mediated by fatty acids (FAs), cholesterol, and phospholipids. These interactions can lead to various physiological changes, including immune suppression, cancer cell proliferation, dissemination, and anti-apoptotic effects on cancer cells. The physiological modulation resulting from this lipid metabolism-associated crosstalk between cancer cells and immune/stromal cells provides valuable insights into cancer prognosis. A comprehensive literature review was conducted to examine the function of the bidirectional lipid metabolism interactions between cancer cells and immune/stromal cells within the TME, particularly how these interactions influence cancer prognosis. A novel autophagy-extracellular vesicle (EV) pathway has been proposed as a mediator of lipid metabolism interactions between cancer cells and immune cells/stromal cells, impacting cancer prognosis. As a result, different forms of lipid metabolism interactions have been described as being linked to cancer prognosis, including those mediated by the autophagy-EV pathway. In conclusion, understanding the bidirectional lipid metabolism interactions between cancer cells and stromal/immune cells in the TME can help develop more advanced prognostic approaches for cancer patients.
Collapse
Affiliation(s)
- Zhongshu Lin
- Queen Mary College, Nanchang University, Nanchang, China
- School of Biological and Behavioural Science, Queen Mary University of London, London, UK
| | - Guanxiang Hua
- Queen Mary College, Nanchang University, Nanchang, China
- School of Biological and Behavioural Science, Queen Mary University of London, London, UK
| | - Xiaojuan Hu
- Queen Mary College, Nanchang University, Nanchang, China.
- School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang, China.
| |
Collapse
|
2
|
Miyashita-Ishiwata M, El Sabeh M, Reschke LD, Afrin S, Borahay MA. Differential response to hypoxia in leiomyoma and myometrial cells. Life Sci 2022; 290:120238. [PMID: 34942165 PMCID: PMC8757389 DOI: 10.1016/j.lfs.2021.120238] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 12/06/2021] [Accepted: 12/12/2021] [Indexed: 02/03/2023]
Abstract
AIMS Recent evidence suggests that repetitive hypoxia occurs during menstrual cycles due to vasoconstriction and myometrial contraction. It is unknown if hypoxia contributes to the development of uterine leiomyoma, the most common tumor of the female reproductive system. This study aims to characterize the response to hypoxia in leiomyoma and myometrial cells; and determine if an aberrant leiomyoma response to hypoxia may contribute to leiomyomatogenesis. MAIN METHODS Primary and immortalized leiomyoma and myometrial cells were cultured under normoxic and hypoxic conditions. Expression levels of vascular endothelial growth factor-A (VEGF-A), adrenomedullin (ADM), endothelin-1 (ET-1), and hypoxia-inducible factor-1 alpha (HIF-1α) were measured by qRT-PCR, western blotting and ELISA. Cell proliferation was assessed using MTT assay and proliferating-cell-nuclear-antigen (PCNA) expression. KC7F2 (HIF-1α inhibitor) was used to examine the regulating mechanisms. KEY FINDINGS As expected, hypoxia induced HIF-1α expression in both leiomyoma and myometrial cells. However, hypoxia induced VEGF-A, ET-1 and ADM expression and VEGF-A secretion into the culture media in leiomyoma but not myometrial cells. MTT assay and PCNA expression showed that hypoxia induces proliferation in leiomyoma, but not myometrial cells. HIF-1α inhibitor abrogated the hypoxia-induced VEGF-A, ET-1, ADM, and PCNA expression in leiomyoma cells. SIGNIFICANCE This study suggests an aberrant leiomyoma cellular response to hypoxia compared to myometrium. This differential response to menstruation-related repetitive hypoxia episodes may lead to selective proliferation of hypoxia-adaptive leiomyoma cells and contribute to leiomyoma growth. Thus, in addition to adding to our understanding of leiomyoma pathobiology, the study proposes angiogenic factors as a potential leiomyoma therapeutic target.
Collapse
Affiliation(s)
- Mariko Miyashita-Ishiwata
- Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, MD, USA, Address: 4940 Eastern Ave, Baltimore, MD, USA 21224-2780
| | - Malak El Sabeh
- Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, MD, USA, Address: 4940 Eastern Ave, Baltimore, MD, USA 21224-2780
| | - Lauren D Reschke
- Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, MD, USA, Address: 4940 Eastern Ave, Baltimore, MD, USA 21224-2780
| | - Sadia Afrin
- Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, MD, USA, Address: 4940 Eastern Ave, Baltimore, MD, USA 21224-2780
| | - Mostafa A Borahay
- Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, MD, USA, Address: 4940 Eastern Ave, Baltimore, MD, USA 21224-2780,Correspondence address: Department of Gynecology & Obstetrics, Johns Hopkins University School of Medicine, 720 Rutland Ave, Baltimore, MD, 21205, USA,
| |
Collapse
|
3
|
Kirschen GW, AlAshqar A, Miyashita-Ishiwata M, Reschke L, El Sabeh M, Borahay MA. Vascular biology of uterine fibroids: connecting fibroids and vascular disorders. Reproduction 2021; 162:R1-R18. [PMID: 34034234 DOI: 10.1530/rep-21-0087] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 05/25/2021] [Indexed: 12/12/2022]
Abstract
Fibroids are benign tumors caused by the proliferation of myometrial smooth muscle cells in the uterus that can lead to symptoms such as abdominal pain, constipation, urinary retention, and infertility. While traditionally thought of as a disease process intrinsic to the uterus, accumulating evidence suggests that fibroid growth may be linked with the systemic vasculature system, although cell-intrinsic factors are certainly of principal importance in their inception. Fibroids are associated with essential hypertension and preeclampsia, as well as atherosclerosis, for reasons that are becoming increasingly elucidated. Factors such as the renin-angiotensin-aldosterone system, estrogen, and endothelial dysfunction all likely play a role in fibroid pathogenesis. In this review, we lay out a framework for reconceptualizing fibroids as a systemic vascular disorder, and discuss how pharmaceutical agents and other interventions targeting the vasculature may aid in the novel treatment of fibroids.
Collapse
Affiliation(s)
- Gregory W Kirschen
- Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, Maryland, USA
| | - Abdelrahman AlAshqar
- Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, Maryland, USA.,Department of Obstetrics and Gynecology, Kuwait University, Kuwait City, Kuwait
| | | | - Lauren Reschke
- Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, Maryland, USA
| | - Malak El Sabeh
- Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, Maryland, USA
| | - Mostafa A Borahay
- Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, Maryland, USA
| |
Collapse
|
4
|
Siao AC, Shih LJ, Lin YY, Tsuei YW, Kuo YC, Ku HC, Chuu CP, Hsiao PJ, Kao YH. Investigation of the Molecular Mechanisms by Which Endothelin-3 Stimulates Preadipocyte Growth. Front Endocrinol (Lausanne) 2021; 12:661828. [PMID: 34093437 PMCID: PMC8176213 DOI: 10.3389/fendo.2021.661828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 04/12/2021] [Indexed: 11/13/2022] Open
Abstract
Endothelins induce many biological responses, and they are composed of three peptides: ET-1, ET-2, and ET-3. Reports have indicated that ET-1 regulates cell proliferation, adipogenesis, and other cell responses and that ET-3 stimulates the growth of gastrointestinal epithelial cells and melanocytes. However, the signalling pathways of ET3 that mediate the growth of fat cells are still unclear. Using 3T3-L1 white preadipocytes, we found that ET-3 induced increases in both cell number and BrdU incorporation. Pretreatment with an ETAR antagonist (but not an ETBR antagonist) blocked the ET-3-induced increases in both cell number and BrdU incorporation. Additionally, BQ610 suppressed the ET-3-induced increases in phosphorylation of AMPK, c-JUN, and STAT3 proteins, and pretreatment with specific inhibitors of AMPK, JNK/c-JUN, or JAK/STAT3 prevented the ET-3-induced increases in phosphorylation of AMPK, c-JUN, and STAT3, respectively. Neither p38 MAPK inhibitor nor PKC inhibitor altered the effects of ET-3 on cell growth. These data suggest that ET-3 stimulates preadipocyte growth through the ETAR, AMPK, JNK/c-JUN, and STAT3 pathways. Moreover, ET-3 did not alter HIB1B brown preadipocyte and D12 beige preadipocyte growth, suggesting a preadipocyte type-dependent effect. The results of this study may help explain how endothelin mediates fat cell activity and fat cell-associated diseases.
Collapse
Affiliation(s)
- An-Ci Siao
- Department of Life Sciences, National Central University, Taoyuan, Taiwan
| | - Li-Jane Shih
- Medical Laboratory, Taoyuan Armed Forces General Hospital, Taoyuan, Taiwan
- Graduate Institute of Medical Science, National Defense Medical Center, Taipei, Taiwan
| | - Yen-Yue Lin
- Department of Life Sciences, National Central University, Taoyuan, Taiwan
- Department of Emergency Medicine, Taoyuan Armed Forces General Hospital, Taoyuan City, Taiwan
- Department of Emergency Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Yi-Wei Tsuei
- Department of Emergency Medicine, Taoyuan Armed Forces General Hospital, Taoyuan City, Taiwan
| | - Yow-Chii Kuo
- Department of Gastroenterology, Landseed Hospital, Taoyuan, Taiwan
| | - Hui-Chen Ku
- Department of Pediatrics, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - Chih-Ping Chuu
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan
| | - Po-Jen Hsiao
- Department of Life Sciences, National Central University, Taoyuan, Taiwan
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan
- Division of Nephrology, Department of Internal Medicine, Taoyuan Armed Forces General Hospital, Taoyuan City, Taiwan
- Division of Nephrology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Yung-Hsi Kao
- Department of Life Sciences, National Central University, Taoyuan, Taiwan
| |
Collapse
|
5
|
Bernacchioni C, Ciarmela P, Vannuzzi V, Greco S, Vannuccini S, Malentacchi F, Pellegrino P, Capezzuoli T, Sorbi F, Cencetti F, Bruni P, Donati C, Petraglia F. Sphingosine 1-phosphate signaling in uterine fibroids: implication in activin A pro-fibrotic effect. Fertil Steril 2021; 115:1576-1585. [PMID: 33500141 DOI: 10.1016/j.fertnstert.2020.12.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 12/15/2020] [Accepted: 12/22/2020] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To explore the link between sphingosine 1-phosphate (S1P) signaling and leiomyoma and the possible S1P cross-talk with the fibrotic effect of activin A. DESIGN Case-control laboratory study. SETTING University institute and university hospital. PATIENT(S) Patients with uterine fibroids (n = 26). INTERVENTIONS(S) Tissue specimens of leiomyoma and normal myometrium were obtained from patients undergoing myomectomy or total hysterectomy. MAIN OUTCOME MEASURE(S) Expression of mRNA levels of the enzyme involved in S1P metabolism, S1P receptors, and S1P transporter Spns2 was evaluated in matched leiomyoma/myometrium specimens and cell populations. The effects of inhibition of S1P metabolism and signaling was evaluated on activin A-induced fibrotic action in leiomyoma cell lines. RESULT(S) The expression of the enzymes responsible for S1P formation, sphingosine kinase (SK) 1 and 2, and S1P2, S1P3, and S1P5 receptors was significantly augmented in leiomyomas compared with adjacent myometrium. In leiomyoma cells, but not in myometrial cells, activin A increased mRNA expression levels of SK1, SK2, and S1P2. The profibrotic action of activin A was abolished when SK1/2 were inhibited or S1P2/3 were blocked. Finally, S1P augmented by itself mRNA levels of fibrotic markers (fibronectin, collagen 1A1) and activin A in leiomyomas but not in myometrial cells. CONCLUSION(S) This study shows that S1P signaling is dysregulated in uterine fibroids and involved in activin A-induced fibrosis, opening new perspectives for uterine fibroid treatment.
Collapse
Affiliation(s)
- Caterina Bernacchioni
- Department of Experimental and Clinical Biomedical Sciences "M. Serio," University of Florence, Florence, Italy
| | - Pasquapina Ciarmela
- Department of Experimental and Clinical Medicine, Faculty of Medicine, Università Politecnica delle Marche, Ancona, Italy
| | - Valentina Vannuzzi
- Department of Experimental and Clinical Biomedical Sciences "M. Serio," University of Florence, Florence, Italy
| | - Stefania Greco
- Department of Experimental and Clinical Medicine, Faculty of Medicine, Università Politecnica delle Marche, Ancona, Italy
| | - Silvia Vannuccini
- Department of Experimental and Clinical Biomedical Sciences "M. Serio," University of Florence, Florence, Italy
| | - Francesca Malentacchi
- Department of Experimental and Clinical Biomedical Sciences "M. Serio," University of Florence, Florence, Italy
| | - Pamela Pellegrino
- Department of Experimental and Clinical Medicine, Faculty of Medicine, Università Politecnica delle Marche, Ancona, Italy
| | - Tommaso Capezzuoli
- Department of Experimental and Clinical Biomedical Sciences "M. Serio," University of Florence, Florence, Italy
| | - Flavia Sorbi
- Department of Experimental and Clinical Biomedical Sciences "M. Serio," University of Florence, Florence, Italy
| | - Francesca Cencetti
- Department of Experimental and Clinical Biomedical Sciences "M. Serio," University of Florence, Florence, Italy
| | - Paola Bruni
- Department of Experimental and Clinical Biomedical Sciences "M. Serio," University of Florence, Florence, Italy
| | - Chiara Donati
- Department of Experimental and Clinical Biomedical Sciences "M. Serio," University of Florence, Florence, Italy.
| | - Felice Petraglia
- Department of Experimental and Clinical Biomedical Sciences "M. Serio," University of Florence, Florence, Italy
| |
Collapse
|
6
|
Siao AC, Lin YY, Shih LJ, Tsuei YW, Chuu CP, Kuo YC, Kao YH. Endothelin-1 stimulates preadipocyte growth via the PKC, STAT3, AMPK, c-JUN, ERK, sphingosine kinase, and sphingomyelinase pathways. Am J Physiol Cell Physiol 2020; 319:C839-C857. [PMID: 32755450 DOI: 10.1152/ajpcell.00491.2019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Endothelin (ET)-1 regulates adipogenesis and the endocrine activity of fat cells. However, relatively little is known about the ET-1 signaling pathway in preadipocyte growth. We used 3T3-L1 preadipocytes to investigate the signaling pathways involved in ET-1 modulation of preadipocyte proliferation. As indicated by an increased number of cells and greater incorporation of bromodeoxyuridine (BrdU), the stimulation of preadipocyte growth by ET-1 depends on concentration and timing. The concentration of ET-1 that increased preadipocyte number by 51-67% was ~100 nM for ~24-48 h of treatment. ET-1 signaling time dependently stimulated phosphorylation of ERK, c-JUN, STAT3, AMPK, and PKCα/βII proteins but not AKT, JNK, or p38 MAPK. Treatment with an ETAR antagonist, such as BQ610, but not ETBR antagonist BQ788, blocked the ET-1-induced increase in cell proliferation and phosphorylated levels of ERK, c-JUN, STAT3, AMPK, and PKCα/βII proteins. In addition, pretreatment with specific inhibitors of ERK1/2 (U0126), JNK (SP600125), JAK2/STAT3 (AG490), AMPK (compound C), or PKC (Ro318220) prevented the ET-1-induced increase in cell proliferation and reduced the ET-1-stimulated phosphorylation of ERK1/2, c-JUN, STAT3, AMPK, and PKCα/β. Moreover, the SphK antagonist suppressed ET-1-induced cell proliferation and ERK, c-JUN, STAT3, AMPK, and PKC phosphorylation, and the SMase2 antagonist suppressed ET-1-induced cell proliferation. However, neither the p38 MAPK antagonist nor the CerS inhibitor altered the effect of ET-1. The results indicate that ETAR, JAK2/STAT3, ERK1/2, JNK/c-JUN, AMPK, PKC, SphK, and SMase2, but not ETBR, p38 MAPK, or CerS, are necessary for the ET-1 stimulation of preadipocyte proliferation.
Collapse
Affiliation(s)
- An-Ci Siao
- Department of Life Sciences, National Central University, Taoyuan, Taiwan
| | - Yen-Yue Lin
- Department of Life Sciences, National Central University, Taoyuan, Taiwan.,Department of Emergency, Taoyuan Armed Forces General Hospital, Taoyuan, Taiwan.,National Defense Medical Center, Taipei, Taiwan
| | - Li-Jane Shih
- National Defense Medical Center, Taipei, Taiwan.,Medical Laboratory, Taoyuan Armed Forces General Hospital, Taoyuan, Taiwan
| | - Yi-Wei Tsuei
- Department of Emergency, Taoyuan Armed Forces General Hospital, Taoyuan, Taiwan
| | - Chih-Pin Chuu
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Yow-Chii Kuo
- Division of Gastroenterology, Landseed Hospital, Taoyuan, Taiwan
| | - Yung-Hsi Kao
- Department of Life Sciences, National Central University, Taoyuan, Taiwan
| |
Collapse
|
7
|
Hanazono A, Sanpei Y, Kamada S, Sugawara M, Iijima K. Hidden relationship between fingolimod and bleeding: Possible novel management of fingolimod-associated lymphopenia. Med Hypotheses 2020; 140:109635. [PMID: 32092561 DOI: 10.1016/j.mehy.2020.109635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 02/15/2020] [Indexed: 10/25/2022]
Abstract
Fingolimod, a functional antagonist of sphingosine-1 phosphate receptor, is a disease modifying drug of multiple sclerosis and its remarkable adverse effect is peripheral lymphopenia because the drug retains lymphocyte in the secondary lymphoid tissues. Therefore, in theory, when severe bleedings occurred, the fingolimod-treated patients could not compensate for the loss of lymphocytes induced by bleedings because of the retention in the secondary lymphoid tissues. In addition, because most of the fingolimod is reported to be distributed in the erythrocytes, and the erythrocytes are the main regulator of serum sphingosine-1 phosphate concentration, bleeding may also affect metabolism of fingolimod and prognosis of multiple sclerosis. However, no study had focused the relationship between fingolimod and bleedings in multiple sclerosis. We encountered the first case in which fingolimod-associated lymphopenia worsened synchronously with gynecological bleeding, and was improved by the bleeding prophylaxis, uterine myomectomy. This case had statistically significant positive correlation between the serum hemoglobin level and peripheral lymphocyte count (P = 0.0000000507). We then had three similar cases. In these 4 correlative patients out of the 14 fingolimod-treated patients in our institution, the importance of the bleeding in fingolimod-treated patients was indicated by line graphs, point diagrams, and statistically significant correlation coefficients. Bleeding should be focused on by all of physicians treating multiple sclerosis with fingolimod.
Collapse
Affiliation(s)
- Akira Hanazono
- Akita University Graduate School of Medicine, Department of Neurology, 1-1-1 Hondo, Akita 010-8543, Japan.
| | - Yui Sanpei
- Akita University Graduate School of Medicine, Department of Neurology, 1-1-1 Hondo, Akita 010-8543, Japan
| | - Sachiko Kamada
- Akita University Graduate School of Medicine, Department of Neurology, 1-1-1 Hondo, Akita 010-8543, Japan
| | - Masashiro Sugawara
- Akita University Graduate School of Medicine, Department of Neurology, 1-1-1 Hondo, Akita 010-8543, Japan
| | - Katsunori Iijima
- Akita University Graduate School of Medicine, Department of Neurology, 1-1-1 Hondo, Akita 010-8543, Japan
| |
Collapse
|
8
|
Commandeur AE, Styer AK, Teixeira JM. Epidemiological and genetic clues for molecular mechanisms involved in uterine leiomyoma development and growth. Hum Reprod Update 2015; 21:593-615. [PMID: 26141720 DOI: 10.1093/humupd/dmv030] [Citation(s) in RCA: 119] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 06/09/2015] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Uterine leiomyomas (fibroids) are highly prevalent benign smooth muscle tumors of the uterus. In the USA, the lifetime risk for women developing uterine leiomyomas is estimated as up to 75%. Except for hysterectomy, most therapies or treatments often provide only partial or temporary relief and are not successful in every patient. There is a clear racial disparity in the disease; African-American women are estimated to be three times more likely to develop uterine leiomyomas and generally develop more severe symptoms. There is also familial clustering between first-degree relatives and twins, and multiple inherited syndromes in which fibroid development occurs. Leiomyomas have been described as clonal and hormonally regulated, but despite the healthcare burden imposed by the disease, the etiology of uterine leiomyomas remains largely unknown. The mechanisms involved in their growth are also essentially unknown, which has contributed to the slow progress in development of effective treatment options. METHODS A comprehensive PubMed search for and critical assessment of articles related to the epidemiological, biological and genetic clues for uterine leiomyoma development was performed. The individual functions of some of the best candidate genes are explained to provide more insight into their biological function and to interconnect and organize genes and pathways in one overarching figure that represents the current state of knowledge about uterine leiomyoma development and growth. RESULTS In this review, the widely recognized roles of estrogen and progesterone in uterine leiomyoma pathobiology on the basis of clinical and experimental data are presented. This is followed by fundamental aspects and concepts including the possible cellular origin of uterine fibroids. The central themes in the subsequent parts are cytogenetic aberrations in leiomyomas and the racial/ethnic disparities in uterine fibroid biology. Then, the attributes of various in vitro and in vivo, human syndrome, rodent xenograft, naturally mutant, and genetically modified models used to study possible molecular mechanisms of leiomyoma development and growth are described. Particular emphasis is placed on known links to fibrosis, hypertrophy, and hyperplasia and genes that are potentially important in these processes. CONCLUSIONS Menstrual cycle-related injury and repair and coinciding hormonal cycling appears to affect myometrial stem cells that, at a certain stage of fibroid development, often obtain cytogenetic aberrations and mutations of Mediator complex subunit 12 (MED12). Mammalian target of rapamycin (mTOR), a master regulator of proliferation, is activated in many of these tumors, possibly by mechanisms that are similar to some human fibrosis syndromes and/or by mutation of upstream tumor suppressor genes. Animal models of the disease support some of these dysregulated pathways in fibroid etiology or pathogenesis, but none are definitive. All of this suggests that there are likely several key mechanisms involved in the disease that, in addition to increasing the complexity of uterine fibroid pathobiology, offer possible approaches for patient-specific therapies. A final model that incorporates many of these reported mechanisms is presented with a discussion of their implications for leiomyoma clinical practice.
Collapse
Affiliation(s)
- Arno E Commandeur
- Center for Reproductive Medicine, Women's and Children's Hospital, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Aaron K Styer
- Vincent Center for Reproductive Biology, Department of Obstetrics, Gynecology, and Reproductive Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Jose M Teixeira
- Department of Obstetrics, Gynecology and Reproductive Biology, College of Human Medicine, Michigan State University, 333 Bostwick Ave NE, 4018A, Grand Rapids, MI, USA Department of Women's Health, Spectrum Health Systems, Grand Rapids, MI, USA
| |
Collapse
|
9
|
Wang SH, Cheng CY, Tang PC, Chen CF, Chen HH, Lee YP, Huang SY. Acute heat stress induces differential gene expressions in the testes of a broiler-type strain of Taiwan country chickens. PLoS One 2015; 10:e0125816. [PMID: 25932638 PMCID: PMC4416790 DOI: 10.1371/journal.pone.0125816] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 03/18/2015] [Indexed: 11/29/2022] Open
Abstract
The expression of testicular genes following acute heat stress has been reported in layer-type roosters, but few similar studies have been conducted on broilers. This study investigated the effect of acute heat stress on the gene expression in the testes of a broiler-type strain of Taiwan country chickens. Roosters were subjected to acute heat stress (38°C) for 4 h, and then exposed to 25°C, with testes collected 0, 2, and 6 h after the cessation of heat stress, using non-heat-stressed roosters as controls (n = 3 roosters per group). The body temperature and respiratory rate increased significantly (p<0.05) during the heat stress. The numbers of apoptotic cells increased 2 h after the acute heat stress (79 ± 7 vs. 322 ± 192, control vs. heat stress; p<0.05), which was earlier than the time of increase in layer-type roosters. Based on a chicken 44 K oligo microarray, 163 genes were found to be expressed significantly different in the testes of the heat-stressed chickens from those of the controls, including genes involved in the response to stimulus, protein metabolism, signal transduction, cell adhesion, transcription, and apoptosis. The mRNA expressions of upregulated genes, including HSP25, HSP90AA1, HSPA2, and LPAR2, and of downregulated genes, including CDH5, CTNNA3, EHF, CIRBP, SLA, and NTF3, were confirmed through quantitative real-time polymerase chain reaction (qRT-PCR). Moreover, numerous transcripts in the testes exhibited distinct expressions between the heat-stressed broiler-type and layer-type chickens. We concluded that the transcriptional responses of testes to acute heat stress may differ between the broiler-type and layer-type roosters. Whether the differential expression patterns associate with the heat-tolerance in the strains require a further exploration.
Collapse
Affiliation(s)
- Shih-Han Wang
- Department of Animal Science, National Chung Hsing University, Taichung, 40227, Taiwan
| | - Chuen-Yu Cheng
- Department of Animal Science, National Chung Hsing University, Taichung, 40227, Taiwan
| | - Pin-Chi Tang
- Department of Animal Science, National Chung Hsing University, Taichung, 40227, Taiwan
- Agricultural Biotechnology Center, National Chung Hsing University, Taichung, 40227, Taiwan
- Center for the Integrative and Evolutionary Galliformes Genomics, iEGG Center, National Chung Hsing University, Taichung, 40227, Taiwan
| | - Chih-Feng Chen
- Department of Animal Science, National Chung Hsing University, Taichung, 40227, Taiwan
- Agricultural Biotechnology Center, National Chung Hsing University, Taichung, 40227, Taiwan
- Center for the Integrative and Evolutionary Galliformes Genomics, iEGG Center, National Chung Hsing University, Taichung, 40227, Taiwan
| | - Hsin-Hsin Chen
- Department of Veterinary Medicine, National Chung Hsing University, Taichung, 40227, Taiwan
| | - Yen-Pai Lee
- Department of Animal Science, National Chung Hsing University, Taichung, 40227, Taiwan
| | - San-Yuan Huang
- Department of Animal Science, National Chung Hsing University, Taichung, 40227, Taiwan
- Agricultural Biotechnology Center, National Chung Hsing University, Taichung, 40227, Taiwan
- Center for the Integrative and Evolutionary Galliformes Genomics, iEGG Center, National Chung Hsing University, Taichung, 40227, Taiwan
- Center of Nanoscience and Nanotechnology, National Chung Hsing University, Taichung, 40227, Taiwan
- * E-mail:
| |
Collapse
|
10
|
Elevated adenosine signaling via adenosine A2B receptor induces normal and sickle erythrocyte sphingosine kinase 1 activity. Blood 2015; 125:1643-52. [PMID: 25587035 DOI: 10.1182/blood-2014-08-595751] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Erythrocyte possesses high sphingosine kinase 1 (SphK1) activity and is the major cell type supplying plasma sphingosine-1-phosphate, a signaling lipid regulating multiple physiological and pathological functions. Recent studies revealed that erythrocyte SphK1 activity is upregulated in sickle cell disease (SCD) and contributes to sickling and disease progression. However, how erythrocyte SphK1 activity is regulated remains unknown. Here we report that adenosine induces SphK1 activity in human and mouse sickle and normal erythrocytes in vitro. Next, using 4 adenosine receptor-deficient mice and pharmacological approaches, we determined that the A2B adenosine receptor (ADORA2B) is essential for adenosine-induced SphK1 activity in human and mouse normal and sickle erythrocytes in vitro. Subsequently, we provide in vivo genetic evidence that adenosine deaminase (ADA) deficiency leads to excess plasma adenosine and elevated erythrocyte SphK1 activity. Lowering adenosine by ADA enzyme therapy or genetic deletion of ADORA2B significantly reduced excess adenosine-induced erythrocyte SphK1 activity in ADA-deficient mice. Finally, we revealed that protein kinase A-mediated extracellular signal-regulated kinase 1/2 activation functioning downstream of ADORA2B underlies adenosine-induced erythrocyte SphK1 activity. Overall, our findings reveal a novel signaling network regulating erythrocyte SphK1 and highlight innovative mechanisms regulating SphK1 activity in normal and SCD.
Collapse
|
11
|
Wang G, Ishikawa H, Sone K, Kobayashi T, Kim JJ, Kurita T, Shozu M. Nonobese diabetic/severe combined immunodeficient murine xenograft model for human uterine leiomyoma. Fertil Steril 2014; 101:1485-92. [DOI: 10.1016/j.fertnstert.2014.01.054] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 01/13/2014] [Accepted: 01/28/2014] [Indexed: 10/25/2022]
|
12
|
Abstract
The role of sphingolipids as bioactive signaling molecules that can regulate cell fate decisions puts them at center stage for cancer treatment and prevention. While ceramide and sphingosine have been established as antigrowth molecules, sphingosine-1-phosphate (S1P) offers a progrowth message to cells. The enzymes responsible for maintaining the balance between these "stop" or "go" signals are the sphingosine kinases (SK), SK1 and SK2. While the relative contribution of SK2 is still being elucidated and may involve an intranuclear role, a substantial amount of evidence suggests that regulation of sphingolipid levels by SK1 is an important component of carcinogenesis. Here, we review the literature regarding the role of SK1 as an oncogene that can function to enhance cancer cell viability and promote tumor growth and metastasis; highlighting the importance of developing specific SK1 inhibitors to supplement current cancer therapies.
Collapse
Affiliation(s)
- Linda A Heffernan-Stroud
- Molecular and Cellular Biology and Pathobiology Program, Medical University of South Carolina, Charleston, SC, USA
| | | |
Collapse
|
13
|
Zhang Y, Knutsen GR, Brown MD, Ruest LB. Control of endothelin-a receptor expression by progesterone is enhanced by synergy with Gata2. Mol Endocrinol 2013; 27:892-908. [PMID: 23592430 PMCID: PMC3656236 DOI: 10.1210/me.2012-1334] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Accepted: 04/10/2013] [Indexed: 11/19/2022] Open
Abstract
The endothelin-A receptor (Ednra) is involved in several physiological, pathological, and developmental pathways. Known for its function in vasoconstriction after being activated by endothelin-1, Ednra also controls cephalic neural crest cell development and appears to play a role in several pathologies, including cancer and periodontitis. However, the mechanisms regulating Ednra expression have not been identified despite its important functions. In this study, we investigated the role progesterone plays in Ednra gene expression in vivo and in vitro. In mice, pregnancy promotes Ednra expression in the heart, kidney, lung, uterus, and placenta, and the up-regulation is mediated by progesterone. We determined that the conserved region between -5.7 and -4.2 kb upstream of the mouse Ednra gene is necessary for the progesterone response. We also found that progesterone mediates Ednra activation through progesterone receptor B activation by its recruitment to PRE6, one of the 6 progesterone response elements found in that locus. However, gene activation by means of a GATA2 site was also necessary for the progesterone response. The Gata2 transcription factor enhances the progesterone response mediated by the progesterone receptor B. Together these results indicate that progesterone regulates Ednra expression by synergizing with Gata2 activity, a previously unknown mechanism. This mechanism may have an impact on pathologies involving the endothelin signaling.
Collapse
Affiliation(s)
- Yanping Zhang
- Center for Craniofacial Research and Diagnosis and Department of Biomedical Sciences, Texas A&M University-Baylor College of Dentistry, Dallas, Texas 75246, USA
| | | | | | | |
Collapse
|
14
|
KARIYA AYAKO, TABUCHI YOSHIAKI, YUNOKI TATSUYA, KONDO TAKASHI. Identification of common gene networks responsive to mild hyperthermia in human cancer cells. Int J Mol Med 2013; 32:195-202. [DOI: 10.3892/ijmm.2013.1366] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Accepted: 03/14/2013] [Indexed: 11/05/2022] Open
|
15
|
Sphingolipid content in the human uterus and pair-matched uterine leiomyomas remains constant. Lipids 2012; 48:245-50. [PMID: 23239114 DOI: 10.1007/s11745-012-3746-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Accepted: 11/06/2012] [Indexed: 12/17/2022]
Abstract
In the present work we sought to investigate the content of sphingolipids (sphingosine, sphinganine, sphingosine-1-phosphate and ceramide) in human fibroids and pair-matched healthy uterus tissue. We demonstrated that, in uterine leiomyomas, the contents of sphingosine, sphinganine, sphingosine-1-phosphate and ceramide remains quite constant. However, a trend towards elevation of ceramide and simultaneous reduction of sphingosine-1 phosphate levels was also noticed. Additionally, in uterine leiomyomas we found relevant activation of both PTEN and MAPK(ERK1/2) signaling pathways with only a minor change in AKT activity and relatively absent HIF-1α/AMPK activation. In conclusion, rather modest changes in sphingolipids are correlated with the activation of PTEN and MAPK(ERK1/2) signaling proteins in human uterine leiomyomas.
Collapse
|
16
|
Undem C, Rios EJ, Maylor J, Shimoda LA. Endothelin-1 augments Na⁺/H⁺ exchange activity in murine pulmonary arterial smooth muscle cells via Rho kinase. PLoS One 2012; 7:e46303. [PMID: 23029469 PMCID: PMC3460862 DOI: 10.1371/journal.pone.0046303] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Accepted: 08/29/2012] [Indexed: 12/20/2022] Open
Abstract
Excessive production of endothelin-1 (ET-1), a potent vasoconstrictor, occurs with several forms of pulmonary hypertension. In addition to modulating vasomotor tone, ET-1 can potentiate pulmonary arterial smooth muscle cell (PASMC) growth and migration, both of which contribute to the vascular remodeling that occurs during the development of pulmonary hypertension. It is well established that changes in cell proliferation and migration in PASMCs are associated with alkalinization of intracellular pH (pHi), typically due to activation of Na+/H+ exchange (NHE). In the systemic vasculature, ET-1 increases pHi, Na+/H+ exchange activity and stimulates cell growth via a mechanism dependent on protein kinase C (PKC). These results, coupled with data describing elevated levels of ET-1 in hypertensive animals/humans, suggest that ET-1 may play an important role in modulating pHi and smooth muscle growth in the lung; however, the effect of ET-1 on basal pHi and NHE activity has yet to be examined in PASMCs. Thus, we used fluorescent microscopy in transiently (3–5 days) cultured rat PASMCs and the pH-sensitive dye, BCECF-AM, to measure changes in basal pHi and NHE activity induced by increasing concentrations of ET-1 (10−10 to 10−8 M). We found that application of exogenous ET-1 increased pHi and NHE activity in PASMCs and that the ET-1-induced augmentation of NHE was prevented in PASMCs pretreated with an inhibitor of Rho kinase, but not inhibitors of PKC. Moreover, direct activation of PKC had no effect on pHi or NHE activity in PASMCs. Our results indicate that ET-1 can modulate pH homeostasis in PASMCs via a signaling pathway that includes Rho kinase and that, in contrast to systemic vascular smooth muscle, activation of PKC does not appear to be an important regulator of PASMC pHi.
Collapse
MESH Headings
- Animals
- Cells, Cultured
- Dose-Response Relationship, Drug
- Endothelin-1/pharmacology
- Enzyme Activation/drug effects
- Fluoresceins
- Fluorescent Dyes
- Hydrogen-Ion Concentration
- Male
- Mice
- Mice, Inbred C57BL
- Microscopy, Fluorescence
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/enzymology
- Myocytes, Smooth Muscle/cytology
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/enzymology
- Protein Kinase C/metabolism
- Protein Kinase Inhibitors/pharmacology
- Pulmonary Artery/cytology
- Pulmonary Artery/drug effects
- Pulmonary Artery/enzymology
- Signal Transduction/drug effects
- Sodium-Potassium-Exchanging ATPase/antagonists & inhibitors
- Sodium-Potassium-Exchanging ATPase/metabolism
- rho-Associated Kinases/antagonists & inhibitors
- rho-Associated Kinases/metabolism
Collapse
Affiliation(s)
- Clark Undem
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, United States of America
| | - Eon J. Rios
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, United States of America
| | - Julie Maylor
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, United States of America
| | - Larissa A. Shimoda
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, United States of America
- * E-mail:
| |
Collapse
|
17
|
Violet PC, Billon-Denis E, Robin P. Inhibition of lipid phosphate phosphatase activity by VPC32183 suppresses the ability of diacylglycerol pyrophosphate to activate ERK(1/2) MAP kinases. Biochim Biophys Acta Mol Cell Biol Lipids 2012; 1821:1394-405. [PMID: 22820196 DOI: 10.1016/j.bbalip.2012.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Revised: 06/26/2012] [Accepted: 07/11/2012] [Indexed: 11/17/2022]
Abstract
The lipidic metabolite, diacylglycerol pyrophosphate (DGPP), in its dioctanoyl form (DGPP 8:0), has been described as an antagonist for mammalian lysophosphatidic acid (LPA) receptors LPA1 and LPA3. In this study we show that DGPP 8:0 does not antagonize LPA dependent activation of ERK(1/2) MAP kinases but strongly stimulated them in various mammalian cell lines. LPA and DGPP 8:0 stimulation of ERK(1/2) occurred through different pathways. The DGPP 8:0 effect appeared to be dependent on PKC, Raf and MEK but was insensitive to pertussis toxin and did not involve G protein activation. Finally we showed that DGPP 8:0 effect on ERK(1/2) was dependent on its dephosphorylation by a phosphatase activity sharing lipid phosphate phosphatase properties. The inhibition of this phosphatase activity by VPC32183, a previously characterized LPA receptor antagonist, blocked the DGPP 8:0 effect on ERK(1/2) activation. Moreover, down-regulation of lipid phosphate phosphatase 1 (LPP1) expression by RNA interference technique also reduced DGPP 8:0-induced ERK(1/2) activation. Consistently, over expression of LPP1 in HEK293 cells increases DGPP 8:0 hydrolysis and this increased activity was inhibited by VPC32183. In conclusion, DGPP 8:0 does not exert its effect by acting on a G protein coupled receptor, but through its dephosphorylation by LPP1, generating dioctanoyl phosphatidic acid which in turn activates PKC. These results suggest that LPP1 could have a positive regulatory function on cellular signaling processes such as ERK(1/2) activation.
Collapse
Affiliation(s)
- Pierre-Christian Violet
- Université Paris-Sud 11, Institut de Biochimie et de Biophysique Moléculaire et Cellulaire, CNRS UMR 8619, 91405 Orsay CEDEX, France
| | | | | |
Collapse
|
18
|
Tanfin Z, Breuiller-Fouché M. The endothelin axis in uterine leiomyomas: new insights. Biol Reprod 2012; 87:5, 1-10. [PMID: 22553222 DOI: 10.1095/biolreprod.111.097725] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The endothelin axis, comprising endothelin-1 (ET-1) and its receptors (ETA and ETB), is involved in the pathophysiology of different human tumors. Here we review conventional approaches and gene expression profiling indicating the association of ET-1 and its cognate receptors with human and rat leiomyomas, the most common benign tumors of myometrium. Specifically, ET-1/ETA interactions affect human and rat leiomyoma cell proliferation through protein kinase C and mitogen-activated protein kinase-dependent signaling pathways. Recent experiments demonstrate that the ET-1 axis exerts a potent antiapoptotic effect involving sphingolipid metabolism and prostaglandin-endoperoxide synthase 2/prostaglandin system in the rat Eker leiomyoma tumor-derived ELT3 cell line. Evidence supports that steroid hormones, growth factors, and extracellular matrix are key regulators of the leiomyoma growth. Interestingly, the ET-1 axis is under steroid hormones and can cooperate with these growth factors. Therefore, ET-1 alone or in association with these factors could contribute to the complex regulation of uterine tumor growth, such as proliferation, survival, and extracellular matrix production. This review summarizes current knowledge and emerging data on ET-1 in uterine leiomyoma pathology.
Collapse
Affiliation(s)
- Zahra Tanfin
- Université Paris-Sud-11, Centre National de la Recherche Scientifique (CNRS), Institut de Biochimie et Biophysique Moléculaire et Cellulaire, Equipe Signalisation Moléculaire et Cellulaire utérine, Orsay, France
| | | |
Collapse
|
19
|
Tanfin Z, Serrano-Sanchez M, Leiber D. ATP-binding cassette ABCC1 is involved in the release of sphingosine 1-phosphate from rat uterine leiomyoma ELT3 cells and late pregnant rat myometrium. Cell Signal 2011; 23:1997-2004. [PMID: 21803151 DOI: 10.1016/j.cellsig.2011.07.010] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Revised: 07/13/2011] [Accepted: 07/13/2011] [Indexed: 01/08/2023]
Abstract
Sphingosine 1-phosphate (S1P), a bioactive lipid generated by sphingosine kinases (SphK1/2), initiates different signalling pathways involved in physiological and pathological processes. We previously demonstrated that in rat myometrium at late (day 19) gestation, SphK1 increases the expression of COX2 via S1P generation and release. In rat uterine leiomyoma cells (ELT3), SphK1/S1P axis controls survival and proliferation. In the present study we demonstrate that PDBu activates SphK1 but not SphK2. SphK1 activation requires PKC and MAPK ERK1/2. S1P produced by PDBu is released in the medium. PDBu-induced S1P export is abolished by Ro-318220 and BIM (PKC inhibitors), by U0126 and PD98059 (MEK inhibitors), SKI-II (SphKI/2 inhibitor) and SphK1-siRNA, suggesting the involvement of PKC, ERK and SphK1 respectively. The release of S1P is insensitive to inhibitors of ATP Binding Cassette (ABC)A1 and ABCB1 transporters, but is abolished when ABCC1 transporters are inhibited by MK571 or down-regulated by ABCC1-siRNA. PDBu increases COX2 expression that is blocked by the inhibition of PKC, ERK1/2, SphK1, and when cells are treated with MK571 or transfected with ABCC1-siRNA. The induction of COX2 by the S1P release due to PDBu or by exogenous S1P involves S1P2 receptors coupled to Gi. In myometrium from rat at late gestation, the release of S1P is also strongly reduced when SphK and ABCC1 are inhibited. The data reveal that in rat leiomyoma cells and late pregnant rat myometrium, the release of S1P involves a similar signalling pathway and occurs through ABCC1.
Collapse
Affiliation(s)
- Zahra Tanfin
- Signalisation et Régulations Cellulaires, Institut de Biochimie et de Biophysique Moléculaire et Cellulaire, Unité Mixte de Recherche 8619, Centre National de la Recherche Scientifique,Université Paris-Sud XI, 91405 Orsay, France.
| | | | | |
Collapse
|
20
|
Oyeniran C, Tanfin Z. MAPK14 Cooperates with MAPK3/1 to Regulate Endothelin-1-Mediated Prostaglandin Synthase 2 Induction and Survival in Leiomyoma but Not in Normal Myometrial Cells1. Biol Reprod 2011; 84:495-504. [DOI: 10.1095/biolreprod.110.089011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
|
21
|
Antoon JW, White MD, Meacham WD, Slaughter EM, Muir SE, Elliott S, Rhodes LV, Ashe HB, Wiese TE, Smith CD, Burow ME, Beckman BS. Antiestrogenic effects of the novel sphingosine kinase-2 inhibitor ABC294640. Endocrinology 2010; 151:5124-35. [PMID: 20861237 PMCID: PMC2954724 DOI: 10.1210/en.2010-0420] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Alterations in sphingolipid metabolism have been shown to contribute to the development of endocrine resistance and breast cancer tumor survival. Sphingosine kinase (SK), in particular, is overexpressed in breast cancer and is a promising target for breast cancer drug development. In this study, we used the novel SK inhibitor ABC294640 as a tool to explore the relationship between SK and estrogen (E2) receptor (ER) signaling in breast cancer cells. Treatment with ABC294640 decreased E2-stimulated ERE-luciferase activity in both MCF-7 and ER-transfected HEK293 cells. Furthermore, the inhibitor reduced E2-mediated transcription of the ER-regulated genes progesterone receptor and SDF-1. Competitive receptor-binding assays revealed that ABC294640 binds in the antagonist ligand-binding domain of the ER, acting as a partial antagonist similar to tamoxifen. Finally, treatment with ABC294640 inhibited ER-positive breast cancer tumor formation in vivo. After 15 d of treatment with ABC294640, tumor volume was reduced by 68.4% (P < 0.05; n = 5) compared with control tumors, with no marked weight loss or illness. Taken together, these results provide strong evidence that this novel SK inhibitor, which had not previously been known to interact with E2 signaling pathways, has therapeutic potential in treating ER-positive breast cancer via inhibition of both SK and ER signaling.
Collapse
Affiliation(s)
- James W Antoon
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana 70112, USA
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Tanfin Z, Leiber D, Robin P, Oyeniran C, Breuiller-Fouché M. Endothelin-1: physiological and pathological roles in myometrium. Int J Biochem Cell Biol 2010; 43:299-302. [PMID: 20974279 DOI: 10.1016/j.biocel.2010.10.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2010] [Revised: 10/14/2010] [Accepted: 10/15/2010] [Indexed: 01/19/2023]
Abstract
Endothelin-1 (ET-1), a member of endothelin peptide family is released by many different tissues including uterine smooth muscle. ET-1 acts through ETA and ETB receptors and is implicated in a wide range of biological and pathological functions that explain the great attention of the pharmacological industry for ET-1 receptors as potential therapeutic targets in vascular pathologies and cancers. It is now well established that ET-1 is also able to regulate myometrial functions. In the present review, we focused on ET axis and related signaling pathways involved in the regulation of myometrial contraction, as well as cell proliferation and survival. Such ET-1-mediated cellular functions play a critical role in normal pregnancy, preterm birth and uterine leiomyoma.
Collapse
Affiliation(s)
- Zahra Tanfin
- Université Paris Sud-11, CNRS, UMR-8619, Institut de Biochimie et Biophysique Moléculaire et Cellulaire, Equipe Signalisation et Régulations Cellulaires, 91400 Orsay, France.
| | | | | | | | | |
Collapse
|
23
|
Raymond MN, Robin P, De Zen F, Vilain G, Tanfin Z. Differential endothelin receptor expression and function in rat myometrial cells and leiomyoma ELT3 cells. Endocrinology 2009; 150:4766-76. [PMID: 19628575 PMCID: PMC2754684 DOI: 10.1210/en.2009-0118] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Uterine leiomyoma are the most common benign tumors of the myometrium. We previously identified endothelin (ET)-1 as a proliferative and antiapoptotic factor in Eker rat-derived leiomyoma (ELT3) cells. A major role of ETB receptor in the prosurvival effect was revealed. Here we investigated, in ELT3 and myometrial cells, the respective contribution of ETA and ETB in the proliferative effect of ET-1. In myometrial cells, binding experiments show that ETA is almost exclusively expressed and stimulates phospholipase C (PLC) activity and ERK1/2 phosphorylation and proliferation. In ELT3 cells, ETB is expressed at about the same level as ETA, and the two receptors are differently coupled to Gi protein. The ETB agonist, sarafotoxin S6c, stimulates PLC activity 60% less than ET-1 but is as potent as ET-1 to increase ERK1/2 phosphorylation and induce proliferation. However, the ability of ETA to activate ERK1/2 is observed after ETB desensitization. Although ETA and ETB antagonists partially reduce ET-1 stimulated PLC activity, they are without effect on ET-1-induced ERK1/2 phosphorylation and proliferation. Only the simultaneous use of ETA and ETB antagonists reduces ET-1-triggered ERK1/2 activation. These unconventional properties of ETRs may reveal the existence of functional ETA-ETB heterodimers. Finally, treatment of ELT3 cells with ETB but not ETA-directed small interfering RNA reduces the proliferative effect of ET-1. All the data obtained in ELT3 cells strengthen the relation between ETB overexpression, which decreases the ETA to ETB ratio, and the ability of leiomyoma cells to highly proliferate and resist apoptosis.
Collapse
Affiliation(s)
- Marie-Noëlle Raymond
- Institut de Biochimie et Biophysique Moléculaire et Cellulaire, Centre National de la Recherche Scientifique Unité Mixte de Recherche 8619, 91 405 Orsay Cedex, France
| | | | | | | | | |
Collapse
|
24
|
Hadaschik BA, Ettinger S, Sowery RD, Zoubeidi A, Andersen RJ, Roberge M, Gleave ME. Targeting prostate cancer with HTI-286, a synthetic analog of the marine sponge product hemiasterlin. Int J Cancer 2008; 122:2368-76. [PMID: 18240145 DOI: 10.1002/ijc.23406] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Therapeutic resistance is the underlying cause for most cancer deaths and a major problem associated with treatment of metastatic prostate cancer. HTI-286, a fully synthetic analog of the natural tripeptide hemiasterlin, inhibits tubulin polymerization and circumvents transport-based resistance to taxanes. In our study, we evaluated its inhibitory effects on human prostate cancer growth in vitro and in different in vivo models. Androgen-dependent and androgen-independent prostate cancer cell lines including a docetaxel-refractory PC-3 subline (PC-3dR) were treated with HTI-286. Transcriptional profiling was carried out to screen for changes in gene expression induced by HTI-286 and compared to docetaxel. In vivo, nude mice with established PC-3 or PC-3dR xenografts were given HTI-286 intravenously. Additionally, mice bearing hormone-sensitive LNCaP tumors were treated with castration in combination with early or delayed HTI-286 therapy. In all cell lines tested, HTI-286 was a potent inhibitor of proliferation and induced marked increases in apoptosis. Despite similar transcriptomic changes regarding cell death and cell cycle regulating genes after exposure to HTI-286 or docetaxel, array analysis revealed distinct molecular signatures for both compounds. Invivo, HTI-286 significantly inhibited growth of PC-3 and LNCaP xenografts and retained potency in PC-3dR tumors. Simultaneous castration plus HTI-286 therapy was superior to sequential treatment in the LNCaP model. In conclusion, HTI-286 showed strong antitumor activity both in androgen-dependent and androgen- independent tumors and may be a promising agent in second- line treatment strategies for patients suffering from docetaxel- refractory prostate cancer.
Collapse
Affiliation(s)
- Boris A Hadaschik
- The Prostate Centre at Vancouver General Hospital, Vancouver, BC, Canada
| | | | | | | | | | | | | |
Collapse
|
25
|
Singh IN, Hall ED. Multifaceted roles of sphingosine-1-phosphate: How does this bioactive sphingolipid fit with acute neurological injury? J Neurosci Res 2008; 86:1419-33. [DOI: 10.1002/jnr.21586] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
|
26
|
Billon-Denis E, Tanfin Z, Robin P. Role of lysophosphatidic acid in the regulation of uterine leiomyoma cell proliferation by phospholipase D and autotaxin. J Lipid Res 2007; 49:295-307. [PMID: 18024704 DOI: 10.1194/jlr.m700171-jlr200] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Phospholipase D (PLD) hydrolyzes phosphatidylcholine into phosphatidic acid (PA), a lipidic mediator that may act directly on cellular proteins or may be metabolized into lysophosphatidic acid (LPA). We previously showed that PLD contributed to the mitogenic effect of endothelin-1 (ET-1) in a leiomyoma cell line (ELT3 cells). In this work, we tested the ability of exogenous PA and PLD from Streptomyces chromofuscus (scPLD) to reproduce the effect of endogenous PLD in ELT3 cells and the possibility that these agents acted through LPA formation. We found that PA, scPLD, and LPA stimulated thymidine incorporation. LPA and scPLD induced extracellular signal-regulated kinase (ERK(1/2)) mitogen-activated protein kinase activation. Using Ki16425, an LPA(1)/LPA(3) receptor antagonist and small interfering RNA targeting LPA(1) receptor, we demonstrated that scPLD acted through LPA production and LPA(1) receptor activation. We found that scPLD induced LPA production by hydrolyzing lysophosphatidylcholine through its lysophospholipase D (lysoPLD) activity. Autotaxin (ATX), a naturally occurring lysoPLD, reproduced the effects of scPLD. By contrast, endogenous PLD stimulated by ET-1 failed to produce LPA. These results demonstrate that scPLD stimulated ELT3 cell proliferation by an LPA-dependent mechanism, different from that triggered by endogenous PLD. These data suggest that in vivo, an extracellular lysoPLD such as ATX may participate in leiomyoma growth through local LPA formation.
Collapse
Affiliation(s)
- Emmanuelle Billon-Denis
- University Paris Sud, Institut de Biochimie et Biophysique Moléculaire et Cellulaire Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8619, Equipe Signalisation et Régulations Cellulaires, Orsay, France
| | | | | |
Collapse
|