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Hatırnaz Ş, Hatırnaz ES, Ellibeş Kaya A, Hatırnaz K, Soyer Çalışkan C, Sezer Ö, Dokuzeylül Güngor N, Demirel C, Baltacı V, Tan S, Dahan M. Oocyte maturation abnormalities - A systematic review of the evidence and mechanisms in a rare but difficult to manage fertility pheneomina. Turk J Obstet Gynecol 2022; 19:60-80. [PMID: 35343221 PMCID: PMC8966321 DOI: 10.4274/tjod.galenos.2022.76329] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
A small proportion of infertile women experience repeated oocyte maturation abnormalities (OMAS). OMAS include degenerated and dysmorphic oocytes, empty follicle syndrome, oocyte maturation arrest (OMA), resistant ovary syndrome and maturation defects due to primary ovarian insufficiency. Genetic factors play an important role in OMAS but still need specifications. This review documents the spectrum of OMAS and to evaluate the multiple subtypes classified as OMAS. In this review, readers will be able to understand the oocyte maturation mechanism, gene expression and their regulation that lead to different subtypes of OMAs, and it will discuss the animal and human studies related to OMAS and lastly the treatment options for OMAs. Literature searches using PubMed, MEDLINE, Embase, National Institute for Health and Care Excellence were performed to identify articles written in English focusing on Oocyte Maturation Abnormalities by looking for the following relevant keywords. A search was made with the specified keywords and included books and documents, clinical trials, animal studies, human studies, meta-analysis, randomized controlled trials, reviews, systematic reviews and options written in english. The search detected 3,953 sources published from 1961 to 2021. After title and abstract screening for study type, duplicates and relevancy, 2,914 studies were excluded. The remaining 1,039 records were assessed for eligibility by full-text reading and 886 records were then excluded. Two hundred and twenty seven full-text articles and 0 book chapters from the database were selected for inclusion. Overall, 227 articles, one unpublished and one abstract paper were included in this final review. In this review study, OMAS were classified and extensively evaluatedand possible treatment options under the light of current information, present literature and ongoing studies. Either genetic studies or in vitro maturation studies that will be handled in the future will lead more informations to be reached and may make it possible to obtain pregnancies.
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Affiliation(s)
- Şafak Hatırnaz
- Medicana Samsun International Hospital, In Vitro Fertilization-In Vitro Maturation Unit, Samsun, Turkey
| | - Ebru Saynur Hatırnaz
- Medicana Samsun International Hospital, In Vitro Fertilization-In Vitro Maturation Unit, Samsun, Turkey
| | - Aşkı Ellibeş Kaya
- Private Office, Clinic of Obstetrics and Gynecology Specialist, Samsun, Turkey
| | - Kaan Hatırnaz
- Ondokuz Mayıs University Faculty of Medicine, Department of Molecular Biology and Genetics, Samsun, Turkey
| | - Canan Soyer Çalışkan
- University of Health Sciences Turkey, Samsun Training and Research Hospital, Clinic of Obstetrics and Gynecology, Samsun, Turkey
| | - Özlem Sezer
- University of Health Sciences Turkey, Samsun Training and Research Hospital, Clinic of Genetics, Samsun, Turkey
| | | | - Cem Demirel
- Memorial Ataşehir Hospital, In Vitro Fertilization Unit, İstanbul, Turkey
| | | | - Seang Tan
- James Edmund Dodds Chair in ObGyn, Department of ObGyn, McGill University, OriginElle Fertility Clinic and Women, QC, Canada
| | - Michael Dahan
- McGill Reproductive Centre, Department of ObGyn, McGill University Montreal, Quebec, Canada
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Wang A, Huang S, Liu M, Wang B, Wu F, Zhu D, Zhao X. Clinical exome sequencing identifies novel compound heterozygous mutations of the WEE2 gene in primary infertile women with fertilization failure. Gynecol Endocrinol 2021; 37:1096-1101. [PMID: 33904356 DOI: 10.1080/09513590.2021.1916458] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
OBJECTIVE The genetic basis of fertilization failure after intracytoplasmic sperm injection (ICSI) is largely unknown and the aim of this study is to investigate the genetic causes of fertilization failure in primary infertile women. METHODS Six affected women diagnosed with infertility and fertilization failure were recruited. The genetically pathogenic factor of their fertilization failures were investigated by clinical exome sequencing. One hundred healthy controls were verified by Sanger sequencing. RESULTS Novel compound heterozygous mutations c.625G > T and c.759-2A > G of WEE2 in one affected individual were revealed by clinical exome sequencing. Trios analysis of the mutations represented an autosomal recessive pattern. The nonsense mutation c.625G > T (p.Glu209*) indicated the truncation of the WEE2 protein and c.759-2A > G was predicted to affect the splicing. CONCLUSIONS The novel variants extend the spectrum of WEE2 mutations, which promotes the prognostic value of testing for WEE2 mutations in infertile women with fertilization failure.
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Affiliation(s)
- Ancong Wang
- Department of Reproductive Medicine, Linyi People's Hospital, Linyi, PR China
- Department of Obstetrics and Gynecology, Linyi People's Hospital, Linyi, PR China
| | - Shan Huang
- Department of Respiratory Medicine, Linyi Hospital of traditional Chinese Medicine, Linyi, PR China
| | - Min Liu
- Department of Reproductive Medicine, Linyi People's Hospital, Linyi, PR China
- Department of Obstetrics and Gynecology, Linyi People's Hospital, Linyi, PR China
| | - Baosong Wang
- Department of Reproductive Medicine, Linyi People's Hospital, Linyi, PR China
- Department of Obstetrics and Gynecology, Linyi People's Hospital, Linyi, PR China
| | - Fengxia Wu
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Shandong University, Jinan, PR China
| | - Dongyi Zhu
- Department of Reproductive Medicine, Linyi People's Hospital, Linyi, PR China
- Department of Obstetrics and Gynecology, Linyi People's Hospital, Linyi, PR China
| | - Xiangyu Zhao
- Department of Medical Genetics, Linyi People's Hospital, Linyi, PR China
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Effects of serum and follicular fluid on the in vitro maturation of canine oocytes. Theriogenology 2019; 143:10-17. [PMID: 31830685 DOI: 10.1016/j.theriogenology.2019.11.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 11/16/2019] [Accepted: 11/30/2019] [Indexed: 11/23/2022]
Abstract
The effects of gonadotropin, serum and follicular fluid on the in vitro maturation of canine oocytes were examined. Additionally, spindle size and spindle migration in MI-stage oocytes derived by in vivo or in vitro maturation were evaluated for the first time. Mature oocytes collected from beagle dog ovaries were divided into two experiments. In experiment I, oocytes were cultured in basic TCM 199 medium supplemented with different levels of P4, E2 and FSH. In experiment II, oocytes in the estrus or anestrus stage were cultured in basic medium supplemented with 30% or 40% canine serum plus 20% or 10% follicular fluid. Our results showed that in experiment I, more oocytes reached MI-MII (18.57%) after supplementation with 1 IU/ml FSH+ 5 IU/ml P4 + 5 IU/ml E2 than after supplementation with other levels of reagents. However, there were no significant differences among the groups (three different concentration groups and a control group) with respect to the proportions of oocytes that resumed meiosis, completed meiosis or degenerated. In experiment II, the number of oocytes from the estrus stage that reached MI-MII in TCM 199 medium supplemented with 40% canine serum and 10% follicular fluid (46.72%) was significantly higher (p < 0.01) than the number of oocytes from the anestrus stage that reached MI-MII in medium supplemented with 30% canine serum and 20% follicular fluid (21.84%). In addition, the degeneration rate was significantly lower (p < 0.05) in the 40% canine serum/10% follicular fluid group from follicular stage than in the other three groups. The average spindle length of the MI-stage oocytes that matured in vivo was significantly (p < 0.01) longer than that of the MI-stage oocytes that matured in vitro (21.75 vs. 14.39 μm). These results suggest that supplementation of the culture medium with 40% estrus serum and 10% follicular fluid had a positive influence on the in vitro maturation of canine oocytes and greatly affected spindle size in MI-stage oocytes.
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Dai J, Zheng W, Dai C, Guo J, Lu C, Gong F, Li Y, Zhou Q, Lu G, Lin G. New biallelic mutations in WEE2: expanding the spectrum of mutations that cause fertilization failure or poor fertilization. Fertil Steril 2019; 111:510-518. [PMID: 30827523 DOI: 10.1016/j.fertnstert.2018.11.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 10/24/2018] [Accepted: 11/12/2018] [Indexed: 10/27/2022]
Abstract
OBJECTIVE To investigate the genetic cause of fertilization failure or poor fertilization. DESIGN Genetic analysis. SETTING University-affiliated center. PATIENT(S) Twenty-four Chinese women who underwent assisted reproductive technology (ART) and had repeated fertilization failure or poor fertilization. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Twenty-four affected patients were subjected to whole-exome sequencing and candidate mutations were validated by Sanger sequencing. Single-cell reverse transcription was used to analyze the functional characterization of the splice-site mutation in vivo. Evolutionary conservation and molecular modeling analyses were used to predict the impact of missense mutations on secondary protein structure. Immunofluorescence was used to analyze the protein levels of WEE2 and phosphorylated CDC2. RESULT(S) Biallelic mutations in WEE2 were identified in 5 of 24 (20.8%) Chinese patients with fertilization failure or poor fertilization. Among these individuals we found a novel splice-site mutation, two novel missense mutations, and a previously reported frame-shift mutation. Splicing mutation c.1136-2A>G of WEE2 caused an alteration of the reading frame and introduced a premature stop codon (p.Gly379Glufs*6/p.Asp380Leufs*39). The missense mutations c.585G>C (p.Lys195Asn) and c.1228C>T (p.Arg410Trp) produced obvious changes in secondary protein structures. Immunostaining indicated that mutated WEE2 resulted in the loss of phosphorylated CDC2. The phenotypes of women carrying WEE2 mutations exhibited slight variability, from total fertilization failure to poor fertilization. CONCLUSION(S) Novel mutations in the known causative gene WEE2 were identified in 5 of 24 women with fertilization failure or poor fertilization, indicating a high prevalence of WEE2 mutations in Chinese women experiencing fertilization failure or poor fertilization.
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Affiliation(s)
- Jing Dai
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, ChangSha, People's Republic of China; Reproductive and Genetic Hospital of CITIC-XIANGYA, ChangSha, People's Republic of China; Laboratory of Reproductive and Stem Cell Engineering, National Health and Family Planning Commission, ChangSha, People's Republic of China
| | - Wei Zheng
- Reproductive and Genetic Hospital of CITIC-XIANGYA, ChangSha, People's Republic of China; Laboratory of Reproductive and Stem Cell Engineering, National Health and Family Planning Commission, ChangSha, People's Republic of China
| | - Can Dai
- Reproductive and Genetic Hospital of CITIC-XIANGYA, ChangSha, People's Republic of China; Laboratory of Reproductive and Stem Cell Engineering, National Health and Family Planning Commission, ChangSha, People's Republic of China
| | - Jing Guo
- Reproductive and Genetic Hospital of CITIC-XIANGYA, ChangSha, People's Republic of China; Laboratory of Reproductive and Stem Cell Engineering, National Health and Family Planning Commission, ChangSha, People's Republic of China
| | - Changfu Lu
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, ChangSha, People's Republic of China; Reproductive and Genetic Hospital of CITIC-XIANGYA, ChangSha, People's Republic of China; Laboratory of Reproductive and Stem Cell Engineering, National Health and Family Planning Commission, ChangSha, People's Republic of China
| | - Fei Gong
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, ChangSha, People's Republic of China; Reproductive and Genetic Hospital of CITIC-XIANGYA, ChangSha, People's Republic of China; Laboratory of Reproductive and Stem Cell Engineering, National Health and Family Planning Commission, ChangSha, People's Republic of China
| | - Yan Li
- Reproductive and Genetic Hospital of CITIC-XIANGYA, ChangSha, People's Republic of China; Laboratory of Reproductive and Stem Cell Engineering, National Health and Family Planning Commission, ChangSha, People's Republic of China
| | - Qinwei Zhou
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, ChangSha, People's Republic of China; Laboratory of Reproductive and Stem Cell Engineering, National Health and Family Planning Commission, ChangSha, People's Republic of China
| | - Guangxiu Lu
- Reproductive and Genetic Hospital of CITIC-XIANGYA, ChangSha, People's Republic of China; Laboratory of Reproductive and Stem Cell Engineering, National Health and Family Planning Commission, ChangSha, People's Republic of China
| | - Ge Lin
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, ChangSha, People's Republic of China; Reproductive and Genetic Hospital of CITIC-XIANGYA, ChangSha, People's Republic of China; Laboratory of Reproductive and Stem Cell Engineering, National Health and Family Planning Commission, ChangSha, People's Republic of China.
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Zhao S, Chen T, Yu M, Bian Y, Cao Y, Ning Y, Su S, Zhang J, Zhao S. Novel WEE2 gene variants identified in patients with fertilization failure and female infertility. Fertil Steril 2019; 111:519-526. [DOI: 10.1016/j.fertnstert.2018.11.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 10/30/2018] [Accepted: 11/14/2018] [Indexed: 12/12/2022]
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No J, Zhao M, Lee S, Ock SA, Nam Y, Hur TY. Enhanced in vitro maturation of canine oocytes by oviduct epithelial cell co-culture. Theriogenology 2017; 105:66-74. [PMID: 28923708 DOI: 10.1016/j.theriogenology.2017.09.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 09/01/2017] [Accepted: 09/01/2017] [Indexed: 01/02/2023]
Abstract
Canine-assisted reproductive techniques have been successful for several years; however, the lack of an oocyte in vitro maturation system has limited their application. The aim of this study was to evaluate the effect of canine oviduct epithelial cells (cOECs) on canine oocyte maturation in vitro. Specifically, the method used for isolation of cOECs did not affect the expression of epithelial markers, E-cadherin and cytokeratin, on fresh, cultured and cryopreserved cells. Moreover, BrdU analysis showed that cOECs cultured in Medium 171 supplemented with mammary epithelial growth supplement were more proliferative than counterparts in advanced Dulbecco's modified Eagle medium or Medium 199. Maturation rate of canine oocytes collected from bitches at diestrus was significantly increased when oocytes were co-cultured with either fresh, cultured or frozen/thawed cOECs (13.23 ± 1.15%, 10.38 ± 4.89%, or 10.54 ± 2.96%, respectively) than that of control oocytes cultured without cOECs (2.48 ± 2.16%, p < 0.05). Additionally, the number of oocytes collected from bitches at estrus the reached metaphase II was increased ∼4 fold in co-culture with fresh, cultured, or frozen/thawed cOECs (47.2 ± 3.82%, 45.4 ± 7.34%, and 46.9 ± 1.51%, respectively) as compared with oocytes cultured without cOECs (11.9 ± 3.18%, p < 0.05). Nuclear maturation was further confirmed by assessing the formation of normal metaphase-II spindles, whereas cytoplasmic maturation was confirmed by inducing parthenogenetic oocyte activation. Embryonic development to the 8-cell stage was similar between in vivo and in vitro matured oocytes. These results suggested that co-culturing immature canine oocytes with cOECs facilitated canine oocyte maturation and early stages of embryonic development.
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Affiliation(s)
- Jingu No
- National Institute of Animal Science, Wanju, Jeonbuk 55365, Republic of Korea; Department of Biological Science, Sungkyunkwan University, Suwon 440-746, South Korea
| | - Minghui Zhao
- National Institute of Animal Science, Wanju, Jeonbuk 55365, Republic of Korea
| | - Seunghoon Lee
- National Institute of Animal Science, Wanju, Jeonbuk 55365, Republic of Korea
| | - Sun A Ock
- National Institute of Animal Science, Wanju, Jeonbuk 55365, Republic of Korea
| | - Yoonseok Nam
- National Institute of Animal Science, Wanju, Jeonbuk 55365, Republic of Korea
| | - Tai-Young Hur
- National Institute of Animal Science, Wanju, Jeonbuk 55365, Republic of Korea.
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