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Gurugubelli KR, Ballambattu VB. Perspectives on folate with special reference to epigenetics and neural tube defects. Reprod Toxicol 2024; 125:108576. [PMID: 38479591 DOI: 10.1016/j.reprotox.2024.108576] [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: 12/27/2023] [Revised: 03/07/2024] [Accepted: 03/10/2024] [Indexed: 03/22/2024]
Abstract
Folate is a micronutrient essential for DNA synthesis, cell division, fetal growth and development. Folate deficiency leads to genomic instability. Inadequate intake of folate during conception may lead to neural tube defects (NTDs) in the offspring. Folate influences the DNA methylation, histone methylation and homocysteine mediated gene methylation. DNA methylation influences the expression of microRNAs (miRNAs). Folate deficiency may be associated with miRNAs misregulation leading to NTDs. Mitochondrial epigenetics and folate metabolism has proved to be involved in embryogenesis and neural tube development. Folate related genetic variants also cause the occurrence of NTDs. Unmetabolized excessive folate may affect health adversely. Hence estimation of folate levels in the blood plays an important role in high-risk cases.
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Affiliation(s)
- Krishna Rao Gurugubelli
- Department of Biochemistry, Andhra Medical College (AMC), Visakhapatnam, Andhra Pradesh, India
| | - Vishnu Bhat Ballambattu
- Aarupadai Veedu Medical College & Hospital (AVMC & H), Vinayaka Mission's Research Foundation (DU), Kirumambakkam, Puducherry, India.
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2
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Tang Y, Cui J, Wang X, Yang Q, Yue Y, Gao C, Wang Y, Wang W, Zhang S, Tian J, Xi G, An L. "Meiosis arrester" C-natriuretic peptide directly stimulates oocyte mtDNA accumulation and is implicated in aging-associated oocyte mtDNA loss. FASEB J 2023; 37:e23295. [PMID: 37984844 DOI: 10.1096/fj.202300886r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 09/30/2023] [Accepted: 10/25/2023] [Indexed: 11/22/2023]
Abstract
C-natriuretic peptide (CNP) is the central regulator of oocyte meiosis progression, thus coordinating synchronization of oocyte nuclear-cytoplasmic maturation. However, whether CNP can independently regulate cytoplasmic maturation has been long overlooked. Mitochondrial DNA (mtDNA) accumulation is the hallmark event of cytoplasmic maturation, but the mechanism underlying oocyte mtDNA replication remains largely elusive. Herein, we report that CNP can directly stimulate oocyte mtDNA replication at GV stage, and deficiency of follicular CNP may contribute largely to lower mtDNA copy number in in vitro matured oocytes. The mechanistic study showed that cAMP-PKA-CREB1 signaling cascade underlies the regulatory role of CNP in stimulating mtDNA replication and upregulating related genes. Of interest, we also report that CNP-NPR2 signaling is inhibited in aging follicles, and this inhibition is implicated in lower mtDNA copy number in oocytes from aging females. Together, our study provides the first direct functional link between follicular CNP and oocyte mtDNA replication, and identifies its involvement in aging-associated mtDNA loss in oocytes. These findings, not only update the current knowledge of the functions of CNP in coordinating oocyte maturation but also present a promising strategy for improving in vitro fertilization outcomes of aging females.
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Affiliation(s)
- Yawen Tang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jian Cui
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Xiaodong Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Qianying Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yuan Yue
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Chunxiao Gao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yue Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Wenjing Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Shuai Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jianhui Tian
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Guangyin Xi
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Lei An
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
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3
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Mitochondrial genome undergoes de novo DNA methylation that protects mtDNA against oxidative damage during the peri-implantation window. Proc Natl Acad Sci U S A 2022; 119:e2201168119. [PMID: 35858425 PMCID: PMC9335330 DOI: 10.1073/pnas.2201168119] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Mitochondrial remodeling during the peri-implantation stage is the hallmark event essential for normal embryogenesis. Among the changes, enhanced oxidative phosphorylation is critical for supporting high energy demands of postimplantation embryos, but increases mitochondrial oxidative stress, which in turn threatens mitochondrial DNA (mtDNA) stability. However, how mitochondria protect their own histone-lacking mtDNA, during this stage remains unclear. Concurrently, the mitochondrial genome gain DNA methylation by this stage. Its spatiotemporal coincidence with enhanced mitochondrial stress led us to ask if mtDNA methylation has a role in maintaining mitochondrial genome stability. Herein, we report that mitochondrial genome undergoes de novo mtDNA methylation that can protect mtDNA against enhanced oxidative damage during the peri-implantation window. Mitochondrial genome gains extensive mtDNA methylation during transition from blastocysts to postimplantation embryos, thus establishing relatively hypermethylated mtDNA from hypomethylated state in blastocysts. Mechanistic study revealed that DNA methyltransferase 3A (DNMT3A) and DNMT3B enter mitochondria during this process and bind to mtDNA, via their unique mitochondrial targeting sequences. Importantly, loss- and gain-of-function analyses indicated that DNMT3A and DNMT3B are responsible for catalyzing de novo mtDNA methylation, in a synergistic manner. Finally, we proved, in vivo and in vitro, that increased mtDNA methylation functions to protect mitochondrial genome against mtDNA damage induced by increased mitochondrial oxidative stress. Together, we reveal mtDNA methylation dynamics and its underlying mechanism during the critical developmental window. We also provide the functional link between mitochondrial epigenetic remodeling and metabolic changes, which reveals a role for nuclear-mitochondrial crosstalk in establishing mitoepigenetics and maintaining mitochondrial homeostasis.
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Fang X, Tanga BM, Bang S, Seong G, Saadeldin IM, Qamar AY, Shim J, Choi K, Lee S, Cho J. Vitamin C enhances porcine cloned embryo development and improves the derivation of embryonic stem-like cells. Reprod Biol 2022; 22:100632. [PMID: 35334451 DOI: 10.1016/j.repbio.2022.100632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/17/2022] [Accepted: 02/21/2022] [Indexed: 11/24/2022]
Abstract
Porcine cloning through somatic cell nuclear transfer (SCNT) has been widely used in biotechnology for generating animal disease models and genetically modified animals for xenotransplantation. Vitamin C is a multifunctional factor that reacts with several enzymes. In this study, we used porcine oocytes to investigate the effects of different concentrations of vitamin C on in vitro maturation (IVM), in vitro culture (IVC), and the derivation of nuclear transfer embryonic stem-like cells (NT-ESCs). We demonstrated that vitamin C promoted the cleavage and blastocyst rate of genetically modified cloned porcine embryos and improved the derivation of NT-ESCs. Vitamin C integrated into IVM and IVC enhanced cleavage and blastocyst formation (P < 0.05) in SCNT embryos. Glutathione level was increased, and reactive oxygen species levels were decreased (P < 0.05) due to vitamin C treatment. Vitamin C decreased the gene expression of apoptosis (BAX) and increased the expression of genes associated with nuclear reprogramming (NANOG, POU5F1, SOX2, c-Myc, Klf4, and TEAD4), antioxidation (SOD1), anti-apoptotic (Bcl2), and trophectoderm (CDX2). Moreover, vitamin C improved the attachment, derivation, and passaging of NT-ESCs, while the control group showed no outgrowths beyond the primary culture. In conclusion, supplementation of vitamin C at a dose of 50 µg/ml to the IVM and IVC culture media was appropriate to improve the outcomes of porcine IVM and IVC and for the derivation of NT-ESCs as a model to study the pre- and post-implantation embryonic development in cloned transgenic embryos. Therefore, we recommend the inclusion of vitamin C as a supplementary factor to IVM and IVC to improve porcine in vitro embryonic development.
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Affiliation(s)
- Xun Fang
- Laboratory of Theriogenology, College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Bereket Molla Tanga
- Laboratory of Theriogenology, College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Seonggyu Bang
- Laboratory of Theriogenology, College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Gyeonghwan Seong
- Laboratory of Theriogenology, College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Islam M Saadeldin
- Laboratory of Theriogenology, College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea; Research Institute of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Ahmad Yar Qamar
- Laboratory of Theriogenology, College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Joohyun Shim
- Department of Transgenic Animal Research, Optipharm, Inc., Chungcheongbuk-do, Cheongju-si, Republic of Korea
| | - Kimyung Choi
- Department of Transgenic Animal Research, Optipharm, Inc., Chungcheongbuk-do, Cheongju-si, Republic of Korea
| | - Sanghoon Lee
- Laboratory of Theriogenology, College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Jongki Cho
- Laboratory of Theriogenology, College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea.
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Chu M, Yao F, Xi G, Yang J, Zhang Z, Yang Q, Tian J, An L. Vitamin C Rescues in vitro Embryonic Development by Correcting Impaired Active DNA Demethylation. Front Cell Dev Biol 2021; 9:784244. [PMID: 34869387 PMCID: PMC8640463 DOI: 10.3389/fcell.2021.784244] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 10/27/2021] [Indexed: 12/17/2022] Open
Abstract
During preimplantation development, a wave of genome-wide DNA demethylation occurs to acquire a hypomethylated genome of the blastocyst. As an essential epigenomic event, postfertilization DNA demethylation is critical to establish full developmental potential. Despite its importance, this process is prone to be disrupted due to environmental perturbations such as manipulation and culture of embryos during in vitro fertilization (IVF), and thus leading to epigenetic errors. However, since the first case of aberrant DNA demethylation reported in IVF embryos, its underlying mechanism remains unclear and the strategy for correcting this error remains unavailable in the past decade. Thus, understanding the mechanism responsible for DNA demethylation defects, may provide a potential approach for preventing or correcting IVF-associated complications. Herein, using mouse and bovine IVF embryos as the model, we reported that ten-eleven translocation (TET)-mediated active DNA demethylation, an important contributor to the postfertilization epigenome reprogramming, was impaired throughout preimplantation development. Focusing on modulation of TET dioxygenases, we found vitamin C and α-ketoglutarate, the well-established important co-factors for stimulating TET enzymatic activity, were synthesized in both embryos and the oviduct during preimplantation development. Accordingly, impaired active DNA demethylation can be corrected by incubation of IVF embryos with vitamin C, and thus improving their lineage differentiation and developmental potential. Together, our data not only provides a promising approach for preventing or correcting IVF-associated epigenetic errors, but also highlights the critical role of small molecules or metabolites from maternal paracrine in finetuning embryonic epigenomic reprogramming during early development.
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Affiliation(s)
- Meiqiang Chu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Fusheng Yao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Guangyin Xi
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jiajun Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Zhenni Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Qianying Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jianhui Tian
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Lei An
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
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Zhang C, Tao L, Yue Y, Ren L, Zhang Z, Wang X, Tian J, An L. Mitochondrial transfer from induced pluripotent stem cells rescues developmental potential of in vitro fertilized embryos from aging females†. Biol Reprod 2021; 104:1114-1125. [PMID: 33511405 DOI: 10.1093/biolre/ioab009] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 09/09/2020] [Accepted: 01/21/2021] [Indexed: 11/14/2022] Open
Abstract
Conventional heterologous mitochondrial replacement therapy is clinically complicated by "tri-parental" ethical concerns and limited source of healthy donor oocytes or zygotes. Autologous mitochondrial transfer is a promising alternative in rescuing poor oocyte quality and impaired embryo developmental potential associated with mitochondrial disorders, including aging. However, the efficacy and safety of mitochondrial transfer from somatic cells remains largely controversial, and unsatisfying outcomes may be due to distinct mitochondrial state in somatic cells from that in oocytes. Here, we propose a potential strategy for improving in vitro fertilization (IVF) outcomes of aging female patients via mitochondrial transfer from induced pluripotent stem (iPS) cells. Using naturally aging mice and well-established cell lines as models, we found iPS cells and oocytes share similar mitochondrial morphology and functions, whereas the mitochondrial state in differentiated somatic cells is substantially different. By microinjection of isolated mitochondria into fertilized oocytes following IVF, our results indicate that mitochondrial transfer from iPS, but not MEF cells, can rescue the impaired developmental potential of embryos from aging female mice and obtain an enhanced implantation rate following embryo transfer. The beneficial effect may be explained by the fact that mitochondrial transfer from iPS cells not only compensates for aging-associated loss of mtDNA, but also rescues mitochondrial metabolism of subsequent preimplantation embryos. Using mitochondria from iPS cells as the donor, our study not only proposes a promising strategy for improving IVF outcomes of aging females, but also highlights the importance of synchronous mitochondrial state in supporting embryo developmental potential.
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Affiliation(s)
- Chao Zhang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs; College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Li Tao
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs; College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Yuan Yue
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs; College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Likun Ren
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs; College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Zhenni Zhang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs; College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Xiaodong Wang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs; College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Jianhui Tian
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs; College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Lei An
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs; College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
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Gao H, Zhang L, Wang L, Liu X, Hou X, Zhao F, Yan H, Wang L. Liver transcriptome profiling and functional analysis of intrauterine growth restriction (IUGR) piglets reveals a genetic correction and sexual-dimorphic gene expression during postnatal development. BMC Genomics 2020; 21:701. [PMID: 33032518 PMCID: PMC7545842 DOI: 10.1186/s12864-020-07094-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 09/23/2020] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Intrauterine growth restriction (IUGR) remains a major problem associated with swine production. Thus, understanding the physiological changes of postnatal IUGR piglets would aid in improving growth performance. Moreover, liver metabolism plays an important role in the growth and survival of neonatal piglets. RESULTS By profiling the transcriptome of liver samples on postnatal Days 1, 7, and 28, our study focused on characterizing the growth, function, and metabolism in the liver of IUGR neonatal piglets. Our study demonstrates that the livers of IUGR piglets were associated with a series of complications, including inflammatory stress and immune dysregulation; cytoskeleton and membrane structure disorganization; dysregulated transcription events; and abnormal glucocorticoid metabolism. In addition, the abnormal liver function index in the serum [alanine aminotransferase (ALT), aspartate aminotransferase (AST), and total protein (TP)], coupled with hepatic pathological and ultrastructural morphological changes are indicative of liver damage and dysfunction in IUGR piglets. Moreover, these results reveal the sex-biased developmental dynamics between male and female IUGR piglets, and that male IUGR piglets may be more sensitive to disrupted metabolic homeostasis. CONCLUSIONS These observations provide a detailed reference for understanding the mechanisms and characterizations of IUGR liver functions, and suggest that the potential strategies for improving the survival and growth performance of IUGR offspring should consider the balance between postnatal catch-up growth and adverse metabolic consequences. In particular, sex-specific intervention strategies should be considered for both female and male IUGR piglets.
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Affiliation(s)
- Hongmei Gao
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, P. R. China
| | - Longchao Zhang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, P. R. China
| | - Ligang Wang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, P. R. China
| | - Xin Liu
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, P. R. China
| | - Xinhua Hou
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, P. R. China
| | - Fuping Zhao
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, P. R. China
| | - Hua Yan
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, P. R. China
| | - Lixian Wang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, P. R. China.
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Fu W, Yue Y, Miao K, Xi G, Zhang C, Wang W, An L, Tian J. Repression of FGF signaling is responsible for Dnmt3b inhibition and impaired de novo DNA methylation during early development of in vitro fertilized embryos. Int J Biol Sci 2020; 16:3085-3099. [PMID: 33061820 PMCID: PMC7545699 DOI: 10.7150/ijbs.51607] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 09/12/2020] [Indexed: 12/30/2022] Open
Abstract
Well-orchestrated epigenetic modifications during early development are essential for embryonic survival and postnatal growth. Erroneous epigenetic modifications due to environmental perturbations such as manipulation and culture of embryos during in vitro fertilization (IVF) are linked to various short- or long-term consequences. Among these, DNA methylation defects are of great concern. Despite the critical role of DNA methylation in determining embryonic development potential, the mechanisms underlying IVF-associated DNA methylation defects, however, remains largely elusive. We reported herein that repression of fibroblast growth factor (FGF) signaling as the main reason for IVF-associated DNA methylation defects. Comparative methylome analysis by postimplantation stage suggested that IVF mouse embryos undergo impaired de novo DNA methylation during implantation stage. Further analyses indicated that Dnmt3b, the main de novo DNA methyltransferase, was consistently inhibited during the transition from the blastocyst to postimplantation stage (Embryonic day 7.5, E7.5). Using blastocysts and embryonic stem cells (ESCs) as the model, we showed repression of FGF signaling is responsible for Dnmt3b inhibition and global hypomethylation during early development, and MEK/ERK-SP1 pathway plays an essential mediating role in FGF signaling-induced transcriptional activation of Dnmt3b. Supplementation of FGF2, which was exclusively produced in the maternal oviduct, into embryo culture medium significantly rescued Dnmt3b inhibition. Our study, using mouse embryos as the model, not only identifies FGF signaling as the main target for correcting IVF-associated epigenetic errors, but also highlights the importance of oviductal paracrine factors in supporting early embryonic development and improving in vitro culture system.
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Affiliation(s)
- Wei Fu
- National Engineering Laboratory for Animal Breeding; Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture; College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Yuan Yue
- National Engineering Laboratory for Animal Breeding; Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture; College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Kai Miao
- National Engineering Laboratory for Animal Breeding; Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture; College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Guangyin Xi
- National Engineering Laboratory for Animal Breeding; Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture; College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Chao Zhang
- National Engineering Laboratory for Animal Breeding; Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture; College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Wenjuan Wang
- National Engineering Laboratory for Animal Breeding; Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture; College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Lei An
- National Engineering Laboratory for Animal Breeding; Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture; College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Jianhui Tian
- National Engineering Laboratory for Animal Breeding; Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture; College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing 100193, P. R. China
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Le Franc L, Bernay B, Petton B, Since M, Favrel P, Rivière G. A functional m 6 A-RNA methylation pathway in the oyster Crassostrea gigas assumes epitranscriptomic regulation of lophotrochozoan development. FEBS J 2020; 288:1696-1711. [PMID: 32743927 DOI: 10.1111/febs.15500] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 06/13/2020] [Accepted: 07/28/2020] [Indexed: 11/30/2022]
Abstract
N6 -methyladenosine (m6 A) is a prevalent epitranscriptomic mark in eukaryotic RNA, with crucial roles for mammalian and ecdysozoan development. Indeed, m6 A-RNA and the related protein machinery are important for splicing, translation, maternal-to-zygotic transition and cell differentiation. However, to date, the presence of an m6 A-RNA pathway remains unknown in more distant animals, questioning the evolution and significance of the epitranscriptomic regulation. Therefore, we investigated the m6 A-RNA pathway in the oyster Crassostrea gigas, a lophotrochozoan model whose development was demonstrated under strong epigenetic influence. Using mass spectrometry and dot blot assays, we demonstrated that m6 A-RNA is actually present in the oyster and displays variations throughout early oyster development, with the lowest levels at the end of cleavage. In parallel, by in silico analyses, we were able to characterize at the molecular level a complete and conserved putative m6 A machinery. The expression levels of the identified putative m6 A writers, erasers and readers were strongly regulated across oyster development. Finally, RNA pull-down coupled to LC-MS/MS allowed us to prove the actual presence of readers able to bind m6 A-RNA and exhibiting specific developmental patterns. Altogether, our results demonstrate the conservation of a complete m6 A-RNA pathway in the oyster and strongly suggest its implication in early developmental processes including MZT. This first demonstration and characterization of an epitranscriptomic regulation in a lophotrochozoan model, potentially involved in the embryogenesis, bring new insights into our understanding of developmental epigenetic processes and their evolution.
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Affiliation(s)
- Lorane Le Franc
- UNICAEN, CNRS, BOREA, Normandie Univ, Caen, France.,Laboratoire Biologie des organismes et Ecosystèmes aquatiques (BOREA), Muséum d'Histoire naturelle, CNRS, IRD, Sorbonne Université, Université de Caen Normandie, Université des Antilles, Caen, France
| | - Benoit Bernay
- UNICAEN, ICORE, PROTEOGEN Core Facility, Caen, SF, France
| | - Bruno Petton
- Ifremer, Laboratoire des Sciences de l'Environnement Marin, UMR 6539 CNRS/UBO/IRD/Ifremer, Centre Bretagne, Normandie Univ, Plouzané, France
| | - Marc Since
- UNICAEN, Comprehensive Cancer Center F. Baclesse, SF ICORE, PRISMM Core Facility, Normandie Univ, Caen, France
| | - Pascal Favrel
- UNICAEN, CNRS, BOREA, Normandie Univ, Caen, France.,Laboratoire Biologie des organismes et Ecosystèmes aquatiques (BOREA), Muséum d'Histoire naturelle, CNRS, IRD, Sorbonne Université, Université de Caen Normandie, Université des Antilles, Caen, France
| | - Guillaume Rivière
- UNICAEN, CNRS, BOREA, Normandie Univ, Caen, France.,Laboratoire Biologie des organismes et Ecosystèmes aquatiques (BOREA), Muséum d'Histoire naturelle, CNRS, IRD, Sorbonne Université, Université de Caen Normandie, Université des Antilles, Caen, France
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Medini H, Cohen T, Mishmar D. Mitochondria Are Fundamental for the Emergence of Metazoans: On Metabolism, Genomic Regulation, and the Birth of Complex Organisms. Annu Rev Genet 2020; 54:151-166. [PMID: 32857636 DOI: 10.1146/annurev-genet-021920-105545] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Out of many intracellular bacteria, only the mitochondria and chloroplasts abandoned their independence billions of years ago and became endosymbionts within the host eukaryotic cell. Consequently, one cannot grow eukaryotic cells without their mitochondria, and the mitochondria cannot divide outside of the cell, thus reflecting interdependence. Here, we argue that such interdependence underlies the fundamental role of mitochondrial activities in the emergence of metazoans. Several lines of evidence support our hypothesis: (a) Differentiation and embryogenesis rely on mitochondrial function; (b) mitochondrial metabolites are primary precursors for epigenetic modifications (such as methyl and acetyl), which are critical for chromatin remodeling and gene expression, particularly during differentiation and embryogenesis; and (c) mitonuclear coregulation adapted to accommodate both housekeeping and tissue-dependent metabolic needs. We discuss the evolution of the unique mitochondrial genetic system, mitochondrial metabolites, mitonuclear coregulation, and their critical roles in the emergence of metazoans and in human disorders.
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Affiliation(s)
- Hadar Medini
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva 8410501 Israel;
| | - Tal Cohen
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva 8410501 Israel;
| | - Dan Mishmar
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva 8410501 Israel;
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11
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Yang Q, Fu W, Wang Y, Miao K, Zhao H, Wang R, Guo M, Wang Z, Tian J, An L. The proteome of IVF-induced aberrant embryo-maternal crosstalk by implantation stage in ewes. J Anim Sci Biotechnol 2020; 11:7. [PMID: 31956410 PMCID: PMC6958772 DOI: 10.1186/s40104-019-0405-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 11/26/2019] [Indexed: 01/17/2023] Open
Abstract
Background Implantation failure limits the success of in vitro fertilization and embryo transfer (IVF-ET). Well-organized embryo-maternal crosstalk is essential for successful implantation. Previous studies mainly focused on the aberrant development of in vitro fertilized (IVF) embryos. In contrast, the mechanism of IVF-induced aberrant embryo-maternal crosstalk is not well defined. Results In the present study, using ewes as the model, we profiled the proteome that features aberrant IVF embryo-maternal crosstalk following IVF-ET. By comparing in vivo (IVO) and IVF conceptuses, as well as matched endometrial caruncular (C) and intercaruncular (IC) areas, we filtered out 207, 295, and 403 differentially expressed proteins (DEPs) in each comparison. Proteome functional analysis showed that the IVF conceptuses were characterized by the increased abundance of energy metabolism and proliferation-related proteins, and the decreased abundance of methyl metabolism-related proteins. In addition, IVF endometrial C areas showed the decreased abundance of endometrial remodeling and redox homeostasis-related proteins; while IC areas displayed the aberrant abundance of protein homeostasis and extracellular matrix (ECM) interaction-related proteins. Based on these observations, we propose a model depicting the disrupted embryo-maternal crosstalk following IVF-ET: Aberrant energy metabolism and redox homeostasis of IVF embryos, might lead to an aberrant endometrial response to conceptus-derived pregnancy signals, thus impairing maternal receptivity. In turn, the suboptimal uterine environment might stimulate a compensation effect of the IVF conceptuses, which was revealed as enhanced energy metabolism and over-proliferation. Conclusion Systematic proteomic profiling provides insights to understand the mechanisms that underlie the aberrant IVF embryo-maternal crosstalk. This might be helpful to develop practical strategies to prevent implantation failure following IVF-ET.
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Affiliation(s)
- Qianying Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Wei Fu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Yue Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Kai Miao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Haichao Zhao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Rui Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Min Guo
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Zhilong Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Jianhui Tian
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Lei An
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
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12
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Sidrat T, Kong R, Khan AA, Idrees M, Xu L, Sheikh ME, Joo MD, Lee KL, Kong IK. Difference in Developmental Kinetics of Y-Specific Monoclonal Antibody Sorted Male and Female In Vitro Produced Bovine Embryos. Int J Mol Sci 2019; 21:ijms21010244. [PMID: 31905822 PMCID: PMC6981608 DOI: 10.3390/ijms21010244] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/24/2019] [Accepted: 12/26/2019] [Indexed: 01/09/2023] Open
Abstract
Sex-related growth differences between male and female embryos remain an attractive subject for reproductive biologists. This study aimed to investigate the endogenous factors that play a crucial role in the pace of early development between male and female bovine embryos. Using sex pre-selected semen by Y-specific monoclonal antibodies for the production of bovine embryos, we characterized the critical endogenous factors that are responsible for creating the development differences, especially during the pre-implantation period between male and female embryos. Our results showed that at day seven, (57.8%) Y-sperm sorted in vitro cultured embryos reached the expanded blastocyst (BL) stage, whereas the X-sperm sorted group were only 25%. Y-BLs showed higher mRNA abundance of pluripotency and developmental competency regulators, such as Oct4 and IGF1-R. Interestingly, Y-sperm sorted BLs had a homogeneous mitochondrial distribution pattern, higher mitochondrial membrane potential (∆Ѱm), efficient OXPHOS (oxidative phosphorylation) system and well-encountered production of ROS (reactive oxygen species) level. Moreover, Y-blastocysts (BLs) showed less utilization of glucose metabolism relative to the X-BLs group. Importantly, both sexes showed differences in the timing of epigenetic events. All these factors directly or indirectly orchestrate the whole embryonic progression and may help in the faster and better quality yield of BL in the Y-sperm sorted group compared to the X counterpart group.
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Affiliation(s)
- Tabinda Sidrat
- Department of Animal Science, Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam, Korea; (T.S.); (M.I.); (L.X.); (M.E.S.); (M.-D.J.); (K.-L.L.)
| | - Rami Kong
- Gyeongsang Animal Science Technology (GAST), Gyeongsang National University; Jinju-daero 501, Korea;
| | - Abdul Aziz Khan
- Center for Discovery and Innovation, Hackensack University Medical Center, Nutley, NJ 07110, USA;
| | - Muhammad Idrees
- Department of Animal Science, Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam, Korea; (T.S.); (M.I.); (L.X.); (M.E.S.); (M.-D.J.); (K.-L.L.)
| | - Lianguang Xu
- Department of Animal Science, Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam, Korea; (T.S.); (M.I.); (L.X.); (M.E.S.); (M.-D.J.); (K.-L.L.)
| | - Marwa El Sheikh
- Department of Animal Science, Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam, Korea; (T.S.); (M.I.); (L.X.); (M.E.S.); (M.-D.J.); (K.-L.L.)
| | - Myeong-Don Joo
- Department of Animal Science, Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam, Korea; (T.S.); (M.I.); (L.X.); (M.E.S.); (M.-D.J.); (K.-L.L.)
| | - Kyeong-Lim Lee
- Department of Animal Science, Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam, Korea; (T.S.); (M.I.); (L.X.); (M.E.S.); (M.-D.J.); (K.-L.L.)
| | - Il-Keun Kong
- Department of Animal Science, Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Gyeongnam, Korea; (T.S.); (M.I.); (L.X.); (M.E.S.); (M.-D.J.); (K.-L.L.)
- Correspondence: ; Tel.: +82-55-772-1942
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13
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Identifying Pig Mitochondrial TSS: Structure and Functional Features. Mitochondrion 2019; 49:19-24. [PMID: 31279875 DOI: 10.1016/j.mito.2019.07.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 04/12/2019] [Accepted: 07/03/2019] [Indexed: 11/23/2022]
Abstract
The transcription start sites (TSSs) of porcine mitochondrial genome were firstly identified in this study, including heavy-strand promoter 1 and 2 (HSP1 and HSP2) harbored at nt 903 and nt 1369 in H strand, respectively, and light-strand promoter (LSP) located at nt 166 in L strand. HSP1 structure and expression features were investigated by analyzing mtDNA copy number, expression of 11 nucleoplasmic genes, mtDNA methylation levels, and gene expression levels of methyl-modifying enzymes, DNMT1 and TETs. The mtDNA copy number presented large differences among 15 organs/tissues, and the largest disparity, nearly 17 times, was found between pancreas (~1890 relative copy numbers) and spleen (~110 relative copy numbers, P < .01). The expression levels of HSP1 strand in these organs/tissues presented similar trends with mtDNA copy number (P < .05), and all of 11 nucleoplasmic genes (POLG, POLRMT, TERT, TFAM, TFB1M, TFB2M, NRF-1, PPARα, ESRRA, SP1 and TUFM) detected in this study displayed significantly higher expression values in pancreas than those in spleen (P < .05). Besides, bisulfite sequencing showed that all cytosine residues in the detected region (D-loop) existed methylation with different levels, and the methylation level in spleen was significantly higher than that in pancreas (P < .05). Unlike nuclear DNA, the tested region contained four types of methylation mode (CA, CC, CT, and CG). In addition, the expression of TET1 in pancreas was significantly higher than that in spleen (P < .05). Collectively, our findings indicated that mtDNA TSSs had correlation to mtDNA copy number, expression of nucleoplasmic gene, and mtDNA methylation level.
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14
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Wei W, Gomez-Duran A, Hudson G, Chinnery PF. Background sequence characteristics influence the occurrence and severity of disease-causing mtDNA mutations. PLoS Genet 2017; 13:e1007126. [PMID: 29253894 PMCID: PMC5757940 DOI: 10.1371/journal.pgen.1007126] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 01/08/2018] [Accepted: 11/26/2017] [Indexed: 11/18/2022] Open
Abstract
Inherited mitochondrial DNA (mtDNA) mutations have emerged as a common cause of human disease, with mutations occurring multiple times in the world population. The clinical presentation of three pathogenic mtDNA mutations is strongly associated with a background mtDNA haplogroup, but it is not clear whether this is limited to a handful of examples or is a more general phenomenon. To address this, we determined the characteristics of 30,506 mtDNA sequences sampled globally. After performing several quality control steps, we ascribed an established pathogenicity score to the major alleles for each sequence. The mean pathogenicity score for known disease-causing mutations was significantly different between mtDNA macro-haplogroups. Several mutations were observed across all haplogroup backgrounds, whereas others were only observed on specific clades. In some instances this reflected a founder effect, but in others, the mutation recurred but only within the same phylogenetic cluster. Sequence diversity estimates showed that disease-causing mutations were more frequent on young sequences, and genomes with two or more disease-causing mutations were more common than expected by chance. These findings implicate the mtDNA background more generally in recurrent mutation events that have been purified through natural selection in older populations. This provides an explanation for the low frequency of mtDNA disease reported in specific ethnic groups. MtDNA mutations are a major cause of genetic disease. Many of these variants have recurred several times in different populations and on diverse haplogroup backgrounds, but the clinical presentation of mutations causing Leber Hereditary Optic Neuropathy (LHON: m.14484T>C, m.3460G>A, m.11778G>A) are strongly associated with a specific mtDNA haplogroup. This raises the possibility that many pathogenic mtDNA mutations are subject to the same effects. Here, our analysis of 30,506 human mtDNA sequences shows that the association between disease-causing mtDNA mutations and background mtDNA haplogroups is not only restricted to three disease-causing mtDNA mutations known to cause LHON. The frequent recurrence of the same mutations on a population clade, and the reduced frequency of European mtDNAs harboring two or more diseases-causing mutations, suggest that the population mtDNA background influences the risk of developing mtDNA mutations. Our analysis also shows that disease-causing mtDNA mutations also occur more frequently on younger mtDNAs. This implies that, once formed, the mutations are selected against. These findings indicate that the clinical interpretation of mtDNA variants should be performed within an ethnogeographic context.
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Affiliation(s)
- Wei Wei
- MRC-Mitochondrial Biology Unit, Cambridge Biomedical Campus, Cambridge, United Kingdom
- Department of Clinical Neurosciences, Cambridge Biomedical Campus, University of Cambridge, Cambridge, United Kingdom
| | - Aurora Gomez-Duran
- MRC-Mitochondrial Biology Unit, Cambridge Biomedical Campus, Cambridge, United Kingdom
- Department of Clinical Neurosciences, Cambridge Biomedical Campus, University of Cambridge, Cambridge, United Kingdom
| | - Gavin Hudson
- Institute of Genetic Medicine, Central Parkway, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Patrick F. Chinnery
- MRC-Mitochondrial Biology Unit, Cambridge Biomedical Campus, Cambridge, United Kingdom
- Department of Clinical Neurosciences, Cambridge Biomedical Campus, University of Cambridge, Cambridge, United Kingdom
- * E-mail:
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15
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Lima A, Burgstaller J, Sanchez-Nieto JM, Rodríguez TA. The Mitochondria and the Regulation of Cell Fitness During Early Mammalian Development. Curr Top Dev Biol 2017; 128:339-363. [PMID: 29477168 DOI: 10.1016/bs.ctdb.2017.10.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
From fertilization until the onset of gastrulation the early mammalian embryo undergoes a dramatic series of changes that converts a single fertilized cell into a remarkably complex organism. Much attention has been given to the molecular changes occurring during this process, but here we will review what is known about the changes affecting the mitochondria and how they impact on the energy metabolism and apoptotic response of the embryo. We will also focus on understanding what quality control mechanisms ensure optimal mitochondrial activity in the embryo, and in this way provide an overview of the importance of the mitochondria in determining cell fitness during early mammalian development.
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Affiliation(s)
- Ana Lima
- British Heart Foundation Centre for Research Excellence, National Heart and Lung Institute, Imperial Centre for Translational and Experimental Medicine, Imperial College London, London, United Kingdom; Cell Stress Group, MRC London Institute of Medical Sciences (LMS), London, United Kingdom
| | - Jörg Burgstaller
- British Heart Foundation Centre for Research Excellence, National Heart and Lung Institute, Imperial Centre for Translational and Experimental Medicine, Imperial College London, London, United Kingdom; Biotechnology in Animal Production, Department for Agrobiotechnology, IFA Tulln, Tulln, Austria
| | - Juan M Sanchez-Nieto
- British Heart Foundation Centre for Research Excellence, National Heart and Lung Institute, Imperial Centre for Translational and Experimental Medicine, Imperial College London, London, United Kingdom
| | - Tristan A Rodríguez
- British Heart Foundation Centre for Research Excellence, National Heart and Lung Institute, Imperial Centre for Translational and Experimental Medicine, Imperial College London, London, United Kingdom.
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