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Waghu FH, Desai K, Srinivasan S, Prabhudesai KS, Dighe V, Venkatesh KV, Idicula-Thomas S. FSHR antagonists can trigger a PCOS-like state. Syst Biol Reprod Med 2021; 68:129-137. [PMID: 34967272 DOI: 10.1080/19396368.2021.2010837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Over the recent years, FSHR has become an important target for development of fertility regulating agents, as impairment of FSH-FSHR interaction can lead to subfertility or infertility. In our previous study, we identified a 9-mer peptide (FSHβ (89-97)) that exhibited FSHR antagonist activity. The histopathological and biochemical observations indicated, in addition to FSHR antagonism, a striking resemblance to a PCOS-like state. These observations led us to hypothesize that use of FSHR antagonists can trigger a PCOS-like state. In the present study, to validate this hypothesis, we performed qRT-PCR validation using ovarian tissue samples from our previous study. Expression of three genes known to be differentially expressed in PCOS was evaluated and found to be similar to the PCOS state. To further test the hypothesis, theoretical simulations were carried out by using the human menstrual cycle model available in the literature. Model simulations for FSHR antagonism were indicative of increased testosterone levels, increased ratio of luteinizing hormone/follicle stimulating hormone, and stockpiling of secondary follicles, which are typical characteristics of PCOS. The findings of this study will be relevant while reviewing the utility of FSHR antagonists for fertility regulation and reproductive medicine.Abbreviations: FSH: Follicle-stimulating hormone; FSHR: Follicle-stimulating hormone receptor; cAMP: Cyclic adenosine 3'5' monophosphate; PKA: Protein kinase A; PI3K: Phosphoinositide 3-kinase; PKB: protein kinase B; ERK1/2: Extracellular signal-regulated protein kinase 1/2; MAPK: Mitogen-activated protein kinases; T: testosterone; E2: estradiol; PCOS: Polycystic ovarian syndrome; LH: luteinizing hormone; Lhcgr: luteinizing hormone/choriogonadotropin receptor; CYP17A1: cytochrome P450 family 17 subfamily A member 1; Inhba: inhibin subunit beta A; qRT-PCR: Real-Time quantitative reverse transcription polymerase chain reaction; FSHβ: Follicle-stimulating hormone β subunit; Ct: Cycle threshold; Rn18s: Rattus norvegicus 18S ribosomal RNA.
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Affiliation(s)
- Faiza Hanif Waghu
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Karishma Desai
- Biomedical Informatics Centre, ICMR- National Institute for Research in Reproductive and Child Health, Mumbai, India
| | - Sumana Srinivasan
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Kaushiki S Prabhudesai
- Biomedical Informatics Centre, ICMR- National Institute for Research in Reproductive and Child Health, Mumbai, India
| | - Vikas Dighe
- National Center for Preclinical Reproductive and Genetic Toxicology, ICMR- National Institute for Research in Reproductive and Child Health, Mumbai, India
| | | | - Susan Idicula-Thomas
- Biomedical Informatics Centre, ICMR- National Institute for Research in Reproductive and Child Health, Mumbai, India
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Peter S, Ghanim F, Dittrich P, Ibrahim B. Organizations in reaction-diffusion systems: Effects of diffusion and boundary conditions. ECOLOGICAL COMPLEXITY 2020. [DOI: 10.1016/j.ecocom.2020.100855] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Henze R, Mu C, Puljiz M, Kamaleson N, Huwald J, Haslegrave J, di Fenizio PS, Parker D, Good C, Rowe JE, Ibrahim B, Dittrich P. Multi-scale stochastic organization-oriented coarse-graining exemplified on the human mitotic checkpoint. Sci Rep 2019; 9:3902. [PMID: 30846816 PMCID: PMC6405958 DOI: 10.1038/s41598-019-40648-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 02/19/2019] [Indexed: 02/05/2023] Open
Abstract
The complexity of biological models makes methods for their analysis and understanding highly desirable. Here, we demonstrate the orchestration of various novel coarse-graining methods by applying them to the mitotic spindle assembly checkpoint. We begin with a detailed fine-grained spatial model in which individual molecules are simulated moving and reacting in a three-dimensional space. A sequence of manual and automatic coarse-grainings finally leads to the coarsest deterministic and stochastic models containing only four molecular species and four states for each kinetochore, respectively. We are able to relate each more coarse-grained level to a finer one, which allows us to relate model parameters between coarse-grainings and which provides a more precise meaning for the elements of the more abstract models. Furthermore, we discuss how organizational coarse-graining can be applied to spatial dynamics by showing spatial organizations during mitotic checkpoint inactivation. We demonstrate how these models lead to insights if the model has different “meaningful” behaviors that differ in the set of (molecular) species. We conclude that understanding, modeling and analyzing complex bio-molecular systems can greatly benefit from a set of coarse-graining methods that, ideally, can be automatically applied and that allow the different levels of abstraction to be related.
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Affiliation(s)
- Richard Henze
- Faculty of Mathematics and Computer Science, Friedrich Schiller University Jena, Jena, Germany
| | - Chunyan Mu
- School of Computing, Teesside University, Teesside, UK
| | - Mate Puljiz
- Faculty of Electrical Engineering and Computing, University of Zagreb, Zagreb, Croatia
| | | | - Jan Huwald
- Faculty of Mathematics and Computer Science, Friedrich Schiller University Jena, Jena, Germany
| | | | | | - David Parker
- School of Computer Science, University of Birmingham, Birmingham, UK
| | | | - Jonathan E Rowe
- School of Computer Science, University of Birmingham, Birmingham, UK
| | - Bashar Ibrahim
- Chair of Bioinformatics, Matthias Schleiden Institute, Friedrich Schiller University of Jena, Jena, Germany.
| | - Peter Dittrich
- Faculty of Mathematics and Computer Science, Friedrich Schiller University Jena, Jena, Germany.
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