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Vernimmen V, Paulussen ADC, Dreesen JCFM, van Golde RJ, Zamani Esteki M, Coonen E, van Buul-van Zwet ML, Homminga I, Derijck AAHA, Brandts L, Stumpel CTRM, de Die-Smulders CEM. Preimplantation genetic testing for Neurofibromatosis type 1: more than 20 years of clinical experience. Eur J Hum Genet 2023:10.1038/s41431-023-01404-x. [PMID: 37337089 PMCID: PMC10400537 DOI: 10.1038/s41431-023-01404-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 05/16/2023] [Accepted: 05/25/2023] [Indexed: 06/21/2023] Open
Abstract
Neurofibromatosis type 1 (NF1) is an autosomal dominant disorder that affects the skin and the nervous system. The condition is completely penetrant with extreme clinical variability, resulting in unpredictable manifestations in affected offspring, complicating reproductive decision-making. One of the reproductive options to prevent the birth of affected offspring is preimplantation genetic testing (PGT). We performed a retrospective review of the medical files of all couples (n = 140) referred to the Dutch PGT expert center with the indication NF1 between January 1997 and January 2020. Of the couples considering PGT, 43 opted out and 15 were not eligible because of failure to identify the underlying genetic defect or unmet criteria for in vitro fertilization (IVF) treatment. The remaining 82 couples proceeded with PGT. Fertility assessment prior to IVF treatment showed a higher percentage of male infertility in males affected with NF1 compared to the partners of affected females. Cardiac evaluations in women with NF1 showed no contraindications for IVF treatment or pregnancy. For 67 couples, 143 PGT cycles were performed. Complications of IVF treatment were not more prevalent in affected females compared to partners of affected males. The transfer of 174 (out of 295) unaffected embryos led to 42 ongoing pregnancies with a pregnancy rate of 24.1% per embryo transfer. There are no documented cases of misdiagnosis following PGT in this cohort. With these results, we aim to provide an overview of PGT for NF1 with regard to success rate and safety, to optimize reproductive counseling and PGT treatment for NF1 patients.
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Affiliation(s)
- Vivian Vernimmen
- GROW-School for Oncology and Reproduction, Maastricht University, Maastricht, The Netherlands.
- Department of Clinical Genetics, Maastricht University Medical Center, Maastricht, The Netherlands.
| | - Aimée D C Paulussen
- GROW-School for Oncology and Reproduction, Maastricht University, Maastricht, The Netherlands
- Department of Clinical Genetics, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Jos C F M Dreesen
- GROW-School for Oncology and Reproduction, Maastricht University, Maastricht, The Netherlands
- Department of Clinical Genetics, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Ron J van Golde
- GROW-School for Oncology and Reproduction, Maastricht University, Maastricht, The Netherlands
- Department of Obstetrics and Gynecology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Masoud Zamani Esteki
- GROW-School for Oncology and Reproduction, Maastricht University, Maastricht, The Netherlands
- Department of Clinical Genetics, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Edith Coonen
- GROW-School for Oncology and Reproduction, Maastricht University, Maastricht, The Netherlands
- Department of Clinical Genetics, Maastricht University Medical Center, Maastricht, The Netherlands
- Department of Obstetrics and Gynecology, Maastricht University Medical Center, Maastricht, The Netherlands
| | | | - Irene Homminga
- University of Groningen, University Medical Center Groningen, Department of Obstetrics and Gynecology, Section Reproductive Medicine, Groningen, The Netherlands
| | - Alwin A H A Derijck
- Amsterdam UMC location University of Amsterdam, Center for Reproductive Medicine, Amsterdam, The Netherlands
- Amsterdam Reproduction and Development, Preconception and Conception, Amsterdam, The Netherlands
| | - Lloyd Brandts
- Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Constance T R M Stumpel
- GROW-School for Oncology and Reproduction, Maastricht University, Maastricht, The Netherlands
- Department of Clinical Genetics, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Christine E M de Die-Smulders
- GROW-School for Oncology and Reproduction, Maastricht University, Maastricht, The Netherlands
- Department of Clinical Genetics, Maastricht University Medical Center, Maastricht, The Netherlands
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2
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Griffin KN, Walters BW, Li H, Wang H, Biancon G, Tebaldi T, Kaya CB, Kanyo J, Lam TT, Cox AL, Halene S, Chung JJ, Lesch BJ. Widespread association of the Argonaute protein AGO2 with meiotic chromatin suggests a distinct nuclear function in mammalian male reproduction. Genome Res 2022; 32:gr.276578.122. [PMID: 36109149 PMCID: PMC9528986 DOI: 10.1101/gr.276578.122] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 07/21/2022] [Indexed: 11/25/2022]
Abstract
Argonaute 2 (AGO2) is a ubiquitously expressed protein critical for regulation of mRNA translation and vital to animal development. AGO2 protein is found in both cytoplasmic and nuclear compartments, and although its cytoplasmic role is well studied, the biological relevance of nuclear AGO2 is unclear. Here, we address this problem in vivo using spermatogenic cells as a model. We find that AGO2 transiently binds both chromatin and nucleus-specific mRNA transcripts of hundreds of genes required for sperm production during male meiosis in mice, and that germline conditional knockout (cKO) of Ago2 causes depletion of the encoded proteins. Correspondingly, Ago2 cKO males show abnormal sperm head morphology and reduced sperm count, along with reduced postnatal viability of offspring. Together, our data reveal an unexpected nuclear role for AGO2 in enhancing expression of developmentally important genes during mammalian male reproduction.
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Affiliation(s)
- Kimberly N Griffin
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut 06510, USA
| | | | - Haixin Li
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut 06510, USA
| | - Huafeng Wang
- Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, Connecticut 06510, USA
| | - Giulia Biancon
- Section of Hematology, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut 06510, USA
- Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut 06510, USA
| | - Toma Tebaldi
- Section of Hematology, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut 06510, USA
- Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut 06510, USA
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, 38123 Trento, Italy
| | - Carolyn B Kaya
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut 06510, USA
| | - Jean Kanyo
- Keck MS & Proteomics Resource, Yale University School of Medicine, New Haven, Connecticut 06510, USA
| | - TuKiet T Lam
- Keck MS & Proteomics Resource, Yale University School of Medicine, New Haven, Connecticut 06510, USA
- Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, Connecticut 06520, USA
| | - Andy L Cox
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut 06510, USA
| | - Stephanie Halene
- Section of Hematology, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut 06510, USA
- Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut 06510, USA
- Yale Stem Cell Center, Yale University School of Medicine, New Haven, Connecticut 06510, USA
- Yale Center for RNA Science and Medicine, Yale University School of Medicine, New Haven, Connecticut 06510, USA
- Department of Pathology, Gynecology & Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut 06510, USA
| | - Jean-Ju Chung
- Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, Connecticut 06510, USA
- Department of Obstetrics, Gynecology & Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut 06510, USA
| | - Bluma J Lesch
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut 06510, USA
- Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut 06510, USA
- Department of Obstetrics, Gynecology & Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut 06510, USA
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3
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Cytokinins: Wide-Spread Signaling Hormones from Plants to Humans with High Medical Potential. Nutrients 2022; 14:nu14071495. [PMID: 35406107 PMCID: PMC9003334 DOI: 10.3390/nu14071495] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 03/29/2022] [Accepted: 03/31/2022] [Indexed: 02/04/2023] Open
Abstract
Nature is a rich source of biologically active novel compounds. Sixty years ago, the plant hormones cytokinins were first discovered. These play a major role in cell division and cell differentiation. They affect organogenesis in plant tissue cultures and contribute to many other physiological and developmental processes in plants. Consequently, the effect of cytokinins on mammalian cells has caught the attention of researchers. Many reports on the contribution and potential of cytokinins in the therapy of different human diseases and pathophysiological conditions have been published and are reviewed here. We compare cytokinin effects and pathways in plants and mammalian systems and highlight the most important biological activities. We present the strong profile of the biological actions of cytokinins and their possible therapeutic applications.
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Brym P, Wasilewska-Sakowska K, Mogielnicka-Brzozowska M, Mańkowska A, Paukszto Ł, Pareek CS, Kordan W, Kondracki S, Fraser L. Gene promoter polymorphisms in boar spermatozoa differing in freezability. Theriogenology 2021; 166:112-123. [PMID: 33735665 DOI: 10.1016/j.theriogenology.2021.02.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 01/23/2021] [Accepted: 02/22/2021] [Indexed: 01/13/2023]
Abstract
Single nucleotide polymorphisms (SNPs) in the 5'-flanking regulatory regions of genes could affect their expression levels. This is a follow-up study aimed to identify polymorphic variants in the 5'-flanking regulatory regions of genes expressed in boar spermatozoa, and to predict the interactions of such variants with transcription factors (TFs) on the gene promoter activity, using bioinformatics. Five and six boars were classified as having good and poor semen freezability (GSF and PSF, respectively) according to post-thaw (PT) assessment of sperm motility and membrane integrity characteristics. The 5'-flanking region sequences of the 14 genes (FOS, NFATC3, EAF2, FGF-14, BAMBI, RAB33B, CKS2, LARS2, SLC25A16, ACADM, CPT2, CCT3, DTD2 and CCDC85A) were PCR amplified and analyzed by Sanger sequencing method. A total of 32 polymorphic variants were identified in the 5'-flanking regions of the genes, including 4 insertion/deletion (indel) polymorphisms, and 8 unknown (novel) SNPs. Multiple sequence alignment analysis revealed a 26-bp indel variant in the 5'-flanking region of the LARS2 gene, which showed greater protein expression in spermatozoa from boars of the PSF group. It was found that 17 polymorphic variants, observed in the differentially expressed (DE) genes, showed significant allele frequency differences between the GSF and PSF groups. Polymorphic variants in the 5'-flanking regulatory regions of the genes contributed to the decrease or increase in the binding affinity for different testis-specific TFs, such as SMAD1, NF-1, FOXMI, RXRA, STAT4 and C/EBPβ. This study provides more insights into the mechanisms responsible for variations in transcriptional activity in promoters of genes expressed in boar spermatozoa. The allelic variants are promising genetic markers for predicting the freezability of boar spermatozoa.
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Affiliation(s)
- Paweł Brym
- Department of Animal Genetics, Faculty of Animal Bioengineering, University of Warmia and Mazury in Olsztyn, 10-719, Olsztyn, Poland
| | | | - Marzena Mogielnicka-Brzozowska
- Department of Animal Biochemistry and Biotechnology, Faculty of Animal Bioengineering, University of Warmia and Mazury in Olsztyn, 10-719, Olsztyn, Poland
| | - Anna Mańkowska
- Department of Animal Biochemistry and Biotechnology, Faculty of Animal Bioengineering, University of Warmia and Mazury in Olsztyn, 10-719, Olsztyn, Poland
| | - Łukasz Paukszto
- Department of Plant Physiology, Genetics and Biotechnology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, 10-719, Olsztyn, Poland
| | - Chandra S Pareek
- Institute of Veterinary Medicine, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, 87-100, Toruń, Poland
| | - Władysław Kordan
- Department of Animal Biochemistry and Biotechnology, Faculty of Animal Bioengineering, University of Warmia and Mazury in Olsztyn, 10-719, Olsztyn, Poland
| | - Stanisław Kondracki
- Faculty of Agrobioengineering and Animal Husbandry, Siedlce University of Natural Sciences and Humanities, 08-110, Siedlce, Poland
| | - Leyland Fraser
- Department of Animal Biochemistry and Biotechnology, Faculty of Animal Bioengineering, University of Warmia and Mazury in Olsztyn, 10-719, Olsztyn, Poland.
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5
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Tan JHL, Wollmann H, van Pelt AMM, Kaldis P, Messerschmidt DM. Infertility-Causing Haploinsufficiency Reveals TRIM28/KAP1 Requirement in Spermatogonia. Stem Cell Reports 2020; 14:818-827. [PMID: 32302554 PMCID: PMC7220855 DOI: 10.1016/j.stemcr.2020.03.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 03/13/2020] [Accepted: 03/17/2020] [Indexed: 01/21/2023] Open
Abstract
Spermatogenesis relies on exquisite stem cell homeostasis, the carefully balanced self-renewal and differentiation of spermatogonial stem cells (SSCs). Disturbing this equilibrium will likely manifest through sub- or infertility, a global health issue with often idiopathic presentation. In this respect, disease phenotypes caused by haploinsufficiency of otherwise vital developmental genes are of particular interest. Here, we show that mice heterozygous for Trim28, an essential epigenetic regulator, suffer gradual testicular degeneration. Contrary to previous reports we detect Trim28 expression in spermatogonia, albeit at low levels. Further reduction through Trim28 heterozygosity increases the propensity of SSCs to differentiate at the cost of self-renewal. TRIM28/KAP1 haploinsufficiency causes testicular degeneration and infertility TRIM28/KAP1 is expressed in spermatogonia stem cell compartment Stem cell homeostasis in the testis is dependent on proper TRIM28/KAP1 levels
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Affiliation(s)
- Joel H L Tan
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A(∗)STAR), Singapore 138673, Singapore; NUS Graduate School for Integrative Sciences and Engineering (NGS), National University of Singapore, Singapore 119077, Singapore
| | - Heike Wollmann
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A(∗)STAR), Singapore 138673, Singapore
| | - Ans M M van Pelt
- Center for Reproductive Medicine, Amsterdam Research Institute Reproduction and Development, Academic Medical Centre, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
| | - Philipp Kaldis
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A(∗)STAR), Singapore 138673, Singapore
| | - Daniel M Messerschmidt
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A(∗)STAR), Singapore 138673, Singapore.
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