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Innocenti F, Fiorentino G, Cimadomo D, Soscia D, Garagna S, Rienzi L, Ubaldi FM, Zuccotti M. Maternal effect factors that contribute to oocytes developmental competence: an update. J Assist Reprod Genet 2022; 39:861-871. [PMID: 35165782 PMCID: PMC9051001 DOI: 10.1007/s10815-022-02434-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 02/09/2022] [Indexed: 11/30/2022] Open
Abstract
Oocyte developmental competence is defined as the capacity of the female gamete to be fertilized and sustain development to the blastocyst stage. Epigenetic reprogramming, a correct cell division pattern, and an efficient DNA damage response are all critical events that, before embryonic genome activation, are governed by maternally inherited factors such as maternal-effect gene (MEG) products. Although these molecules are stored inside the oocyte until ovulation and exert their main role during fertilization and preimplantation development, some of them are already functioning during folliculogenesis and oocyte meiosis resumption. This mini review summarizes the crucial roles played by MEGs during oocyte maturation, fertilization, and preimplantation development with a direct/indirect effect on the acquisition or maintenance of oocyte competence. Our aim is to inspire future research on a topic with potential clinical perspectives for the prediction and treatment of female infertility.
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Affiliation(s)
- Federica Innocenti
- GeneraLife IVF, Clinica Valle Giulia, via G. de Notaris, 2b, 00197, Rome, Italy
| | - Giulia Fiorentino
- Laboratory of Developmental Biology, Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, Pavia, Italy.,Center for Health Technologies, University of Pavia, Pavia, Italy
| | - Danilo Cimadomo
- GeneraLife IVF, Clinica Valle Giulia, via G. de Notaris, 2b, 00197, Rome, Italy.
| | - Daria Soscia
- GeneraLife IVF, Clinica Valle Giulia, via G. de Notaris, 2b, 00197, Rome, Italy
| | - Silvia Garagna
- Laboratory of Developmental Biology, Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, Pavia, Italy.,Center for Health Technologies, University of Pavia, Pavia, Italy
| | - Laura Rienzi
- GeneraLife IVF, Clinica Valle Giulia, via G. de Notaris, 2b, 00197, Rome, Italy
| | | | - Maurizio Zuccotti
- Laboratory of Developmental Biology, Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, Pavia, Italy.,Center for Health Technologies, University of Pavia, Pavia, Italy
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2
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Hiwasa T, Wang H, Goto KI, Mine S, Machida T, Kobayashi E, Yoshida Y, Adachi A, Matsutani T, Sata M, Yamagishi K, Iso H, Sawada N, Tsugane S, Kunimatsu M, Kamitsukasa I, Mori M, Sugimoto K, Uzawa A, Muto M, Kuwabara S, Kobayashi Y, Ohno M, Nishi E, Hattori A, Yamamoto M, Maezawa Y, Kobayashi K, Ishibashi R, Takemoto M, Yokote K, Takizawa H, Kishimoto T, Matsushita K, Kobayashi S, Nomura F, Arasawa T, Kagaya A, Maruyama T, Matsubara H, Tomiita M, Hamanaka S, Imai Y, Nakagawa T, Kato N, Terada J, Matsumura T, Katsumata Y, Naito A, Tanabe N, Sakao S, Tatsumi K, Ito M, Shiratori F, Sumazaki M, Yajima S, Shimada H, Shirouzu M, Yokoyama S, Kudo T, Doi H, Iwase K, Ashino H, Li SY, Kubota M, Tomiyoshi G, Shinmen N, Nakamura R, Kuroda H, Iwadate Y. Serum anti-DIDO1, anti-CPSF2, and anti-FOXJ2 antibodies as predictive risk markers for acute ischemic stroke. BMC Med 2021; 19:131. [PMID: 34103026 PMCID: PMC8188684 DOI: 10.1186/s12916-021-02001-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 04/30/2021] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Acute ischemic stroke (AIS) is a serious cause of mortality and disability. AIS is a serious cause of mortality and disability. Early diagnosis of atherosclerosis, which is the major cause of AIS, allows therapeutic intervention before the onset, leading to prevention of AIS. METHODS Serological identification by cDNA expression cDNA libraries and the protein array method were used for the screening of antigens recognized by serum IgG antibodies in patients with atherosclerosis. Recombinant proteins or synthetic peptides derived from candidate antigens were used as antigens to compare serum IgG levels between healthy donors (HDs) and patients with atherosclerosis-related disease using the amplified luminescent proximity homogeneous assay-linked immunosorbent assay. RESULTS The first screening using the protein array method identified death-inducer obliterator 1 (DIDO1), forkhead box J2 (FOXJ2), and cleavage and polyadenylation specificity factor (CPSF2) as the target antigens of serum IgG antibodies in patients with AIS. Then, we prepared various antigens including glutathione S-transferase-fused DIDO1 protein as well as peptides of the amino acids 297-311 of DIDO1, 426-440 of FOXJ2, and 607-621 of CPSF2 to examine serum antibody levels. Compared with HDs, a significant increase in antibody levels of the DIDO1 protein and peptide in patients with AIS, transient ischemic attack (TIA), and chronic kidney disease (CKD) but not in those with acute myocardial infarction and diabetes mellitus (DM). Serum anti-FOXJ2 antibody levels were elevated in most patients with atherosclerosis-related diseases, whereas serum anti-CPSF2 antibody levels were associated with AIS, TIA, and DM. Receiver operating characteristic curves showed that serum DIDO1 antibody levels were highly associated with CKD, and correlation analysis revealed that serum anti-FOXJ2 antibody levels were associated with hypertension. A prospective case-control study on ischemic stroke verified that the serum antibody levels of the DIDO1 protein and DIDO1, FOXJ2, and CPSF2 peptides showed significantly higher odds ratios with a risk of AIS in patients with the highest quartile than in those with the lowest quartile, indicating that these antibody markers are useful as risk factors for AIS. CONCLUSIONS Serum antibody levels of DIDO1, FOXJ2, and CPSF2 are useful in predicting the onset of atherosclerosis-related AIS caused by kidney failure, hypertension, and DM, respectively.
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Affiliation(s)
- Takaki Hiwasa
- Department of Neurological Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan. .,Department of Biochemistry and Genetics, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan. .,Comprehensive Stroke Center, Chiba University Hospital, Chiba, 260-8677, Japan.
| | - Hao Wang
- Department of Biochemistry and Genetics, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan.,Department of Anesthesia, The First Affiliated Hospital, Jinan University, Guanzhou, 510632, P. R. China
| | - Ken-Ichiro Goto
- Department of Biochemistry and Genetics, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Seiichiro Mine
- Department of Neurological Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan.,Department of Neurological Surgery, Chiba Prefectural Sawara Hospital, Chiba, 287-0003, Japan.,Department of Neurological Surgery, Chiba Cerebral and Cardiovascular Center, Chiba, 290-0512, Japan
| | - Toshio Machida
- Department of Neurological Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan.,Department of Neurological Surgery, Chiba Cerebral and Cardiovascular Center, Chiba, 290-0512, Japan.,Department of Neurosurgery, Eastern Chiba Medical Center, Chiba, 283-8686, Japan
| | - Eiichi Kobayashi
- Department of Neurological Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan.,Comprehensive Stroke Center, Chiba University Hospital, Chiba, 260-8677, Japan
| | - Yoichi Yoshida
- Department of Neurological Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan.,Comprehensive Stroke Center, Chiba University Hospital, Chiba, 260-8677, Japan
| | - Akihiko Adachi
- Department of Neurological Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan.,Comprehensive Stroke Center, Chiba University Hospital, Chiba, 260-8677, Japan
| | - Tomoo Matsutani
- Department of Neurological Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan.,Comprehensive Stroke Center, Chiba University Hospital, Chiba, 260-8677, Japan
| | - Mizuki Sata
- Department of Public Health Medicine, Faculty of Medicine, and Health Services Research and Development Center, University of Tsukuba, Tsukuba, 305-8575, Japan.,Department of Preventive Medicine and Public Health, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Kazumasa Yamagishi
- Department of Public Health Medicine, Faculty of Medicine, and Health Services Research and Development Center, University of Tsukuba, Tsukuba, 305-8575, Japan
| | - Hiroyasu Iso
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Suita, 565-0871, Japan
| | - Norie Sawada
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, 104-0045, Japan
| | - Shoichiro Tsugane
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, 104-0045, Japan
| | - Mitoshi Kunimatsu
- Department of Home Economics, Nagoya Women's University, Nagoya, 467-8610, Japan
| | - Ikuo Kamitsukasa
- Department of Neurology, Chiba Rosai Hospital, Chiba, 290-0003, Japan.,Department of Neurology, Chibaken Saiseikai Narashino Hospital, Chiba, 275-8580, Japan
| | - Masahiro Mori
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Kazuo Sugimoto
- Department of Neurological Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan.,Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Akiyuki Uzawa
- Comprehensive Stroke Center, Chiba University Hospital, Chiba, 260-8677, Japan.,Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Mayumi Muto
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Satoshi Kuwabara
- Comprehensive Stroke Center, Chiba University Hospital, Chiba, 260-8677, Japan.,Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Yoshio Kobayashi
- Department of Cardiovascular Medicine, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Mikiko Ohno
- Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University, Kyoto, 606-8507, Japan.,Department of Pharmacology, Shiga University of Medical Science, Shiga, 520-2192, Japan
| | - Eiichiro Nishi
- Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University, Kyoto, 606-8507, Japan.,Department of Pharmacology, Shiga University of Medical Science, Shiga, 520-2192, Japan
| | - Akiko Hattori
- Department of Endocrinology, Hematology and Gerontology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Masashi Yamamoto
- Department of Endocrinology, Hematology and Gerontology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Yoshiro Maezawa
- Department of Endocrinology, Hematology and Gerontology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Kazuki Kobayashi
- Department of Endocrinology, Hematology and Gerontology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Ryoichi Ishibashi
- Department of Endocrinology, Hematology and Gerontology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Minoru Takemoto
- Department of Endocrinology, Hematology and Gerontology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan.,Department of Diabetes, Metabolism and Endocrinology, School of Medicine, International University of Health and Welfare, Chiba, 286-8686, Japan
| | - Koutaro Yokote
- Department of Endocrinology, Hematology and Gerontology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Hirotaka Takizawa
- Port Square Kashiwado Clinic, Kashiwado Memorial Foundation, Chiba, 260-0025, Japan
| | - Takashi Kishimoto
- Department of Molecular Pathology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Kazuyuki Matsushita
- Department of Laboratory Medicine & Division of Clinical Genetics, Chiba University Hospital, Chiba, 260-8677, Japan
| | - Sohei Kobayashi
- Department of Laboratory Medicine & Division of Clinical Genetics, Chiba University Hospital, Chiba, 260-8677, Japan.,Department of Medical Technology and Sciences, School of Health Sciences at Narita, International University of Health and Welfare, Chiba, 286-8686, Japan
| | - Fumio Nomura
- Division of Clinical Genetics, Chiba Foundation for Health Promotion and Disease Prevention, Chiba, 261-0002, Japan
| | - Takahiro Arasawa
- Department of Biochemistry and Genetics, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan.,Department of Frontier Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Akiko Kagaya
- Department of Frontier Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Tetsuro Maruyama
- Department of Frontier Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Hisahiro Matsubara
- Department of Frontier Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Minako Tomiita
- Department of Allergy and Rheumatology, Chiba Children's Hospital, Chiba, 266-0007, Japan
| | - Shinsaku Hamanaka
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Yushi Imai
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Tomoo Nakagawa
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Naoya Kato
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Jiro Terada
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Takuma Matsumura
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Yusuke Katsumata
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Akira Naito
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Nobuhiro Tanabe
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan.,Department of Advanced Medicine in Pulmonary Hypertension, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Seiichiro Sakao
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Koichiro Tatsumi
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Masaaki Ito
- Department of Gastroenterological Surgery and Clinical Oncology, Toho University Graduate School of Medicine, Tokyo, 143-8541, Japan
| | - Fumiaki Shiratori
- Department of Gastroenterological Surgery and Clinical Oncology, Toho University Graduate School of Medicine, Tokyo, 143-8541, Japan
| | - Makoto Sumazaki
- Department of Gastroenterological Surgery and Clinical Oncology, Toho University Graduate School of Medicine, Tokyo, 143-8541, Japan
| | - Satoshi Yajima
- Department of Gastroenterological Surgery and Clinical Oncology, Toho University Graduate School of Medicine, Tokyo, 143-8541, Japan
| | - Hideaki Shimada
- Department of Gastroenterological Surgery and Clinical Oncology, Toho University Graduate School of Medicine, Tokyo, 143-8541, Japan
| | - Mikako Shirouzu
- Division of Structural and Synthetic Biology, RIKEN Center for Life Science Technologies, Yokohama, Kanagawa, 230-0045, Japan
| | - Shigeyuki Yokoyama
- RIKEN Structural Biology Laboratory, Yokohama, Kanagawa, 230-0045, Japan
| | | | | | - Katsuro Iwase
- Department of Biochemistry and Genetics, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Hiromi Ashino
- Department of Biochemistry and Genetics, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Shu-Yang Li
- Department of Neurological Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan.,Department of Biochemistry and Genetics, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Masaaki Kubota
- Department of Neurological Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan
| | - Go Tomiyoshi
- Department of Biochemistry and Genetics, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan.,Medical Project Division, Research Development Center, Fujikura Kasei Co., Saitama, 340-0203, Japan
| | - Natsuko Shinmen
- Department of Biochemistry and Genetics, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan.,Medical Project Division, Research Development Center, Fujikura Kasei Co., Saitama, 340-0203, Japan
| | - Rika Nakamura
- Department of Biochemistry and Genetics, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan.,Medical Project Division, Research Development Center, Fujikura Kasei Co., Saitama, 340-0203, Japan
| | - Hideyuki Kuroda
- Medical Project Division, Research Development Center, Fujikura Kasei Co., Saitama, 340-0203, Japan
| | - Yasuo Iwadate
- Department of Neurological Surgery, Graduate School of Medicine, Chiba University, Chiba, 260-8670, Japan.,Comprehensive Stroke Center, Chiba University Hospital, Chiba, 260-8677, Japan
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Cheng H, Sun X, Chen F, Pan LZ, Wang GL, Yuan HJ, Chang ZL, Tan JH. Meiotic arrest with roscovitine and sexual maturity improve competence of mouse oocytes by regulating expression of competence-related genes. J Reprod Dev 2021; 67:115-122. [PMID: 33597332 PMCID: PMC8075721 DOI: 10.1262/jrd.2020-142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We have studied the mechanisms by which meiotic arrest maintenance (MAM) with roscovitine, female sexual maturity, and the surrounded nucleoli (SN) chromatin
configuration improve the competence of mouse oocytes by observing the expression of oocyte competence-related genes in non-surrounded nucleoli (NSN) and SN
oocytes from prepubertal and adult mice following maturation with or without MAM. The results demonstrated that MAM with roscovitine significantly improved the
developmental potential of adult SN and prepubertal NSN oocytes, but had no effect on that of prepubertal SN oocytes. Without MAM, while 40% of the 2-cell
embryos derived from prepubertal SN oocytes developed into 4-cell embryos, none of the 2-cell embryos derived from prepubertal NSN oocytes did, and while 42% of
the 4-cell embryos derived from adult SN oocytes developed into blastocysts, only 1% of the 4-cell embryos derived from prepubertal SN oocytes developed into
blastocysts. Furthermore, MAM with roscovitine, SN configuration, and female sexual maturity significantly increased the mRNA levels of competence-beneficial
genes and decreased those of competence-detrimental genes. In conclusion, our results suggest that MAM with roscovitine, SN chromatin configuration, and female
sexual maturity improve oocyte competence by regulating the expression of competence-related genes, suggesting that Oct4,
Stella, Mater, Zar1, Mapk8, and Bcl2 are oocyte competence-beneficial
genes, whereas Foxj2, Ship1, and Bax are competence-detrimental genes.
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Affiliation(s)
- Hao Cheng
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, P. R. China
| | - Xue Sun
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, P. R. China
| | - Fei Chen
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, P. R. China
| | - Liu-Zhu Pan
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, P. R. China
| | - Guo-Liang Wang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, P. R. China
| | - Hong-Jie Yuan
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, P. R. China
| | - Zhong-Le Chang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, P. R. China
| | - Jing-He Tan
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, P. R. China
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4
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Taheri M, Saki G, Nikbakht R, Eftekhari AR. Bone morphogenetic protein 15 induces differentiation of mesenchymal stem cells derived from human follicular fluid to oocyte-like cell. Cell Biol Int 2020; 45:127-139. [PMID: 32997425 DOI: 10.1002/cbin.11475] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 09/27/2020] [Accepted: 09/28/2020] [Indexed: 12/12/2022]
Abstract
Follicular fluid (FF) is essential for developing ovarian follicles. Besides the oocytes, FF has abundant undifferentiated somatic cells containing stem cell properties, which are discarded in daily medical procedures. Earlier studies have shown that FF cells could differentiate into primordial germ cells via forming embryoid bodies, which produced oocyte-like cells (OLC). This study aimed at isolating mesenchymal stem cells (MSC) from FF and evaluating the impacts of bone morphogenetic protein 15 (BMP15) on the differentiation of these cells into OLCs. Human FF-derived cells were collected from 78 women in the assisted fertilization program and cultured in human recombinant BMP15 medium for 21 days. Real-time polymerase chain reaction and immunocytochemistry staining characterized MSCs and OLCs. MSCs expressed germline stem cell (GSC) markers, such as OCT4 and Nanog. In the control group, after 15 days, OLCs were formed and expressed zona pellucida markers (ZP2 and ZP3), and reached 20-30 µm in diameter. Ten days after induction with BMP15, round cells developed, and the size of OLCs reached 115 µm. A decrease ranged from 0.04 to 4.5 in the expression of pluripotency and oocyte-specific markers observed in the cells cultured in a BMP15-supplemented medium. FF-derived MSCs have an innate potency to differentiate into OLCs, and BMP15 is effective in promoting the differentiation of these cells, which may give an in vitro model to examine germ cell development.
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Affiliation(s)
- Mahin Taheri
- Cellular and Molecular Research Center, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Anatomical Science, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Fertility, Infertility and Perinatology Center, Imam Khomeini Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ghasem Saki
- Department of Anatomical Science, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Roshan Nikbakht
- Fertility, Infertility and Perinatology Center, Imam Khomeini Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ali R Eftekhari
- Cellular and Molecular Research Center, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Anatomical Science, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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5
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Takada Y, Iyyappan R, Susor A, Kotani T. Posttranscriptional regulation of maternal Pou5f1/Oct4 during mouse oogenesis and early embryogenesis. Histochem Cell Biol 2020; 154:609-620. [PMID: 32930837 DOI: 10.1007/s00418-020-01915-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/31/2020] [Indexed: 12/11/2022]
Abstract
Protein syntheses at appropriate timings are important for promoting diverse biological processes and are controlled at the levels of transcription and translation. Pou5f1/Oct4 is a transcription factor that is essential for vertebrate embryonic development. However, the precise timings when the mRNA and protein of Pou5f1/Oct4 are expressed during oogenesis and early stages of embryogenesis remain unclear. We analyzed the expression patterns of mRNA and protein of Pou5f1/Oct4 in mouse oocytes and embryos by using a highly sensitive in situ hybridization method and a monoclonal antibody specific to Pou5f1/Oct4, respectively. Pou5f1/Oct4 mRNA was detected in growing oocytes from the primary follicle stage to the fully grown GV stage during oogenesis. In contrast, Pou5f1/Oct4 protein was undetectable during oogenesis, oocyte maturation and the first cleavage stage but subsequently became detectable in the nuclei of early 2-cell-stage embryos. Pou5f1/Oct4 protein at this stage was synthesized from maternal mRNAs stored in oocytes. The amount of Pou5f1/Oct4 mRNA in the polysomal fraction was small in GV-stage oocytes but was significantly increased in fertilized eggs. Taken together, our results indicate that the synthesis of Pou5f1/Oct4 protein during oogenesis and early stages of embryogenesis is controlled at the level of translation and suggest that precise control of the amount of this protein by translational regulation is important for oocyte development and early embryonic development.
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Affiliation(s)
- Yuki Takada
- Biosystems Science Course, Graduate School of Life Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Rajan Iyyappan
- Laboratory of Biochemistry and Molecular Biology of Germ Cells, Institute of Animal Physiology and Genetics, CAS, Rumburska 89, 277 21, Libechov, Czech Republic
| | - Andrej Susor
- Laboratory of Biochemistry and Molecular Biology of Germ Cells, Institute of Animal Physiology and Genetics, CAS, Rumburska 89, 277 21, Libechov, Czech Republic
| | - Tomoya Kotani
- Biosystems Science Course, Graduate School of Life Science, Hokkaido University, Sapporo, 060-0810, Japan. .,Department of Biological Sciences, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan.
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6
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Assadollahi V, Fathi F, Abdi M, Khadem Erfan MB, Soleimani F, Banafshi O. Increasing maternal age of blastocyst affects on efficient derivation and behavior of mouse embryonic stem cells. J Cell Biochem 2018; 120:3716-3726. [DOI: 10.1002/jcb.27652] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 08/14/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Vahideh Assadollahi
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences Sanandaj Iran
| | - Fardin Fathi
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences Sanandaj Iran
| | - Mohammad Abdi
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences Sanandaj Iran
| | - Mohamad Bager Khadem Erfan
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences Sanandaj Iran
| | | | - Omid Banafshi
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences Sanandaj Iran
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7
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Wolfe AD, Rodriguez AM, Downs KM. STELLA collaborates in distinct mesendodermal cell subpopulations at the fetal-placental interface in the mouse gastrula. Dev Biol 2017; 425:44-57. [PMID: 28322735 PMCID: PMC5510028 DOI: 10.1016/j.ydbio.2017.03.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 03/10/2017] [Accepted: 03/15/2017] [Indexed: 01/22/2023]
Abstract
The allantois-derived umbilical component of the chorio-allantoic placenta shuttles fetal blood to and from the chorion, thereby ensuring fetal-maternal exchange. The progenitor populations that establish and supply the fetal-umbilical interface lie, in part, within the base of the allantois, where the germ line is claimed to segregate from the soma. Results of recent studies in the mouse have reported that STELLA (DPPA-3, PGC7) co-localizes with PRDM1 (BLIMP1), the bimolecular signature of putative primordial germ cells (PGCs) throughout the fetal-placental interface. Thus, if PGCs form extragonadally within the posterior region of the mammal, they cannot be distinguished from the soma on the basis of these proteins. We used immunohistochemistry, immunofluorescence, and confocal microscopy of the mouse gastrula to co-localize STELLA with a variety of gene products, including pluripotency factor OCT-3/4, mesendoderm-associated T and MIXl1, mesendoderm- and endoderm-associated FOXa2 and hematopoietic factor Runx1. While a subpopulation of cells localizing OCT-3/4 was always found independently of STELLA, STELLA always co-localized with OCT-3/4. Despite previous reports that T is involved in specification of the germ line, co-localization of STELLA and T was detected only in a small subset of cells in the base of the allantois. Slightly later in the hindgut lip, STELLA+/(OCT-3/4+) co-localized with FOXa2, as well as with RUNX1, indicative of definitive endoderm and hemangioblasts, respectively. STELLA was never found with MIXl1. On the basis of these and previous results, we conclude that STELLA identifies at least five distinct cell subpopulations within the allantois and hindgut, where they may be involved in mesendodermal differentiation and hematopoiesis at the posterior embryonic-extraembryonic interface. These data provide a new point of departure for understanding STELLA's potential roles in building the fetal-placental connection.
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Affiliation(s)
- Adam D Wolfe
- Department of Pediatrics, Division of Pediatric Hematology, Oncology & Bone Marrow Transplant, University of Wisconsin-Madison School of Medicine and Public Health, 1111 Highland Avenue, 4105 WIMR, Madison, WI 53705, United States
| | - Adriana M Rodriguez
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison School of Medicine and Public Health, 1300 University Ave, Madison, WI 53706, United States
| | - Karen M Downs
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison School of Medicine and Public Health, 1300 University Ave, Madison, WI 53706, United States
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8
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Bui TTH, Belli M, Fassina L, Vigone G, Merico V, Garagna S, Zuccotti M. Cytoplasmic movement profiles of mouse surrounding nucleolus and not-surrounding nucleolus antral oocytes during meiotic resumption. Mol Reprod Dev 2017; 84:356-362. [PMID: 28233368 DOI: 10.1002/mrd.22788] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Accepted: 02/16/2017] [Indexed: 01/28/2023]
Abstract
Full-grown mouse antral oocytes are classified as surrounding nucleolus (SN) or not-surrounding nucleolus (NSN), depending on the respective presence or absence of a ring of Hoechst-positive chromatin surrounding the nucleolus. In culture, both types of oocytes resume meiosis and reach the metaphase II (MII) stage, but following insemination, NSN oocytes arrest at the two-cell stage whereas SN oocytes may develop to term. By coupling time-lapse bright-field microscopy with image analysis based on particle image velocimetry, we provide the first systematic measure of the changes to the cytoplasmic movement velocity (CMV) occurring during the germinal vesicle-to-MII (GV-to-MII) transition of these two types of oocytes. Compared to SN oocytes, NSN oocytes display a delayed GV-to-MII transition, which can be mostly explained by retarded germinal vesicle break down and first polar body extrusion. SN and NSN oocytes also exhibit significantly different CMV profiles at four main time-lapse intervals, although this difference was not predictive of SN or NSN oocyte origin because of the high variability in CMV. When CMV profile was analyzed through a trained artificial neural network, however, each single SN or NSN oocyte was blindly identified with a probability of 92.2% and 88.7%, respectively. Thus, the CMV profile recorded during meiotic resumption may be exploited as a cytological signature for the non-invasive assessment of the oocyte developmental potential, and could be informative for the analysis of the GV-to-MII transition of oocytes of other species.
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Affiliation(s)
- Thi Thu Hien Bui
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie "Lazzaro Spallanzani", University of Pavia, Pavia, Italy
| | - Martina Belli
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie "Lazzaro Spallanzani", University of Pavia, Pavia, Italy
| | - Lorenzo Fassina
- Dipartimento di Ingegneria Industriale e dell'Informazione, University of Pavia, Pavia, Italy.,Centre for Health Technologies (C.H.T.), University of Pavia, Pavia, Italy
| | - Giulia Vigone
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie "Lazzaro Spallanzani", University of Pavia, Pavia, Italy
| | - Valeria Merico
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie "Lazzaro Spallanzani", University of Pavia, Pavia, Italy
| | - Silvia Garagna
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie "Lazzaro Spallanzani", University of Pavia, Pavia, Italy.,Centre for Health Technologies (C.H.T.), University of Pavia, Pavia, Italy
| | - Maurizio Zuccotti
- Dipartimento di Medicina e Chirurgia, University of Parma, Parma, Italy
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9
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Miao H, Miao CX, Li N, Han J. FOXJ2 controls meiosis during spermatogenesis in male mice. Mol Reprod Dev 2016; 83:684-91. [PMID: 27316861 DOI: 10.1002/mrd.22671] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Accepted: 06/13/2016] [Indexed: 12/17/2022]
Abstract
Spermatogenesis is a highly complex cell differentiation process necessary for production of haploid spermatozoa. Central to this unique process is spermatocyte meiosis. FOXJ2 (Forkhead box J2), a FOX transcription factor, is specifically expressed in meiotic spermatocytes in adult mouse testes, so we used a germ cell specific conditional knockout model (Foxj2(flox/flox) , Mvh-Cre) to explore its role in spermatogenesis. Loss of FOXJ2 in the male germ line led to meiotic arrest and complete infertility. Although, DNA double-strand breaks (DSBs) were initiated, Foxj2-deficient spermatocytes failed to form chromosomal synapses and perform DSB repair. Furthermore, Foxj2-deficient spermatocytes contained significantly less mRNA encoding DSB repair-associated factors (Rad18, Rad51, Brca1, Brca2, and Tex15) and meiotic arrest-related proteins (Fzr1, Hsp70-2, Spata22, Eif4g3, and Zpac); in contrast, no change was observed in the expression of spermatogonia markers (Gfra1, Zbtb16, and c-Kit) and germ cell markers (Dazl, Mvh, and Tra98). Taken together, FOXJ2 appears to promote meiotic progression in male mice by a mechanism that needs further investigation. Mol. Reprod. Dev. 83: 684-691, 2016 © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Hui Miao
- Department of, Reproduction and Genetics, ChangZhi Medical College Affiliated HePing Hospital, ShanXi Province, China
| | - Cong-Xiu Miao
- Department of, Reproduction and Genetics, ChangZhi Medical College Affiliated HePing Hospital, ShanXi Province, China
| | - Na Li
- Department of, Reproduction and Genetics, ChangZhi Medical College Affiliated HePing Hospital, ShanXi Province, China
| | - Jing Han
- Department of, Reproduction and Genetics, ChangZhi Medical College Affiliated HePing Hospital, ShanXi Province, China
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10
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Xie F, Anderson CL, Timme KR, Kurz SG, Fernando SC, Wood JR. Obesity-Dependent Increases in Oocyte mRNAs Are Associated With Increases in Proinflammatory Signaling and Gut Microbial Abundance of Lachnospiraceae in Female Mice. Endocrinology 2016; 157:1630-43. [PMID: 26881311 PMCID: PMC4816731 DOI: 10.1210/en.2015-1851] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
RNAs stored in the metaphase II-arrested oocyte play important roles in successful embryonic development. Their abundance is defined by transcriptional activity during oocyte growth and selective degradation of transcripts during LH-induced oocyte maturation. Our previous studies demonstrated that mRNA abundance is increased in mature ovulated oocytes collected from obese humans and mice and therefore may contribute to reduced oocyte developmental competence associated with metabolic dysfunction. In the current study mouse models of diet-induced obesity were used to determine whether obesity-dependent increases in proinflammatory signaling regulate ovarian abundance of oocyte-specific mRNAs. The abundance of oocyte-specific Bnc1, Dppa3, and Pou5f1 mRNAs as well as markers of proinflammatory signaling were significantly increased in ovaries of obese compared with lean mice which were depleted of fully grown preovulatory follicles. Chromatin-immunoprecipitation analyses also demonstrated increased association of phosphorylated signal transducer and activator of transcription 3 with the Pou5f1 promoter in ovaries of obese mice suggesting that proinflammatory signaling regulates transcription of this gene in the oocyte. The cecum microbial content of lean and obese female mice was subsequently examined to identify potential relationships between microbial composition and proinflammatory signaling in the ovary. Multivariate Association with Linear Models identified significant positive correlations between cecum abundance of the bacterial family Lachnospiraceae and ovarian abundance of Tnfa as well as Dppa3, Bnc1, and Pou5f1 mRNAs. Together, these data suggest that diet-induced changes in gut microbial composition may be contributing to ovarian inflammation which in turn alters ovarian gene expression and ultimately contributes to obesity-dependent reduction in oocyte quality and development of infertility in obese patients.
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Affiliation(s)
- Fang Xie
- Department of Animal Science (F.X., K.R.T., S.G.K., S.C.F., J.R.W.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0908; School of Biological Sciences (C.L.A., S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0118; and Food Science and Technology Department (S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0919
| | - Christopher L Anderson
- Department of Animal Science (F.X., K.R.T., S.G.K., S.C.F., J.R.W.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0908; School of Biological Sciences (C.L.A., S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0118; and Food Science and Technology Department (S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0919
| | - Kelsey R Timme
- Department of Animal Science (F.X., K.R.T., S.G.K., S.C.F., J.R.W.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0908; School of Biological Sciences (C.L.A., S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0118; and Food Science and Technology Department (S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0919
| | - Scott G Kurz
- Department of Animal Science (F.X., K.R.T., S.G.K., S.C.F., J.R.W.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0908; School of Biological Sciences (C.L.A., S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0118; and Food Science and Technology Department (S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0919
| | - Samodha C Fernando
- Department of Animal Science (F.X., K.R.T., S.G.K., S.C.F., J.R.W.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0908; School of Biological Sciences (C.L.A., S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0118; and Food Science and Technology Department (S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0919
| | - Jennifer R Wood
- Department of Animal Science (F.X., K.R.T., S.G.K., S.C.F., J.R.W.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0908; School of Biological Sciences (C.L.A., S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0118; and Food Science and Technology Department (S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0919
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11
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Poynter JN, Bestrashniy JRBM, Silverstein KAT, Hooten AJ, Lees C, Ross JA, Tolar J. Cross platform analysis of methylation, miRNA and stem cell gene expression data in germ cell tumors highlights characteristic differences by tumor histology. BMC Cancer 2015; 15:769. [PMID: 26497383 PMCID: PMC4619074 DOI: 10.1186/s12885-015-1796-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Accepted: 10/15/2015] [Indexed: 12/21/2022] Open
Abstract
Background Alterations in methylation patterns, miRNA expression, and stem cell protein expression occur in germ cell tumors (GCTs). Our goal is to integrate molecular data across platforms to identify molecular signatures in the three main histologic subtypes of Type I and Type II GCTs (yolk sac tumor (YST), germinoma, and teratoma). Methods We included 39 GCTs and 7 paired adjacent tissue samples in the current analysis. Molecular data available for analysis include DNA methylation data (Illumina GoldenGate Cancer Methylation Panel I), miRNA expression (NanoString nCounter miRNA platform), and stem cell factor expression (SABiosciences Human Embryonic Stem Cell Array). We evaluated the cross platform correlations of the data features using the Maximum Information Coefficient (MIC). Results In analyses of individual datasets, differences were observed by tumor histology. Germinomas had higher expression of transcription factors maintaining stemness, while YSTs had higher expression of cytokines, endoderm and endothelial markers. We also observed differences in miRNA expression, with miR-371-5p, miR-122, miR-302a, miR-302d, and miR-373 showing elevated expression in one or more histologic subtypes. Using the MIC, we identified correlations across the data features, including six major hubs with higher expression in YST (LEFTY1, LEFTY2, miR302b, miR302a, miR 126, and miR 122) compared with other GCT. Conclusions While prognosis for GCTs is overall favorable, many patients experience resistance to chemotherapy, relapse and/or long term adverse health effects following treatment. Targeted therapies, based on integrated analyses of molecular tumor data such as that presented here, may provide a way to secure high cure rates while reducing unintended health consequences.
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Affiliation(s)
- Jenny N Poynter
- Division of Pediatric Epidemiology and Clinical Research, University of Minnesota, Minneapolis, MN, 55455, USA. .,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA. .,Corresponding address: 420 Delaware St SE MMC 715, Minneapolis, MN, 55455, USA.
| | - Jessica R B M Bestrashniy
- Division of Pediatric Epidemiology and Clinical Research, University of Minnesota, Minneapolis, MN, 55455, USA.
| | - Kevin A T Silverstein
- Minnesota Supercomputing Institute, University of Minnesota, Minneapolis, MN, 55455, USA.
| | - Anthony J Hooten
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA.
| | - Christopher Lees
- Division of Pediatric Blood and Marrow Transplantation, University of Minnesota, Minneapolis, MN, 55455, USA.
| | - Julie A Ross
- Division of Pediatric Epidemiology and Clinical Research, University of Minnesota, Minneapolis, MN, 55455, USA. .,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA.
| | - Jakub Tolar
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA. .,Division of Pediatric Blood and Marrow Transplantation, University of Minnesota, Minneapolis, MN, 55455, USA. .,Stem Cell Institute, University of Minnesota, Minneapolis, MN, 55455, USA.
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12
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Kim D, Park S, Jung YG, Roh S. In vitro culture of stem-like cells derived from somatic cell nuclear transfer bovine embryos of the Korean beef cattle species, HanWoo. Reprod Fertil Dev 2015; 28:RD14071. [PMID: 25966803 DOI: 10.1071/rd14071] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2014] [Accepted: 04/12/2015] [Indexed: 12/27/2022] Open
Abstract
We established and maintained somatic cell nuclear transfer embryo-derived stem-like cells (SCNT-eSLCs) from the traditional Korean beef cattle species, HanWoo (Bos taurus coreanae). Each SCNT blastocyst was placed individually on a feeder layer with culture medium containing three inhibitors of differentiation (3i). Primary colonies formed after 2-3 days of culture and the intact colonies were passaged every 5-6 days. The cells in each colony showed embryonic stem cell-like morphologies with a distinct boundary and were positive to alkaline phosphatase staining. Immunofluorescence and reverse transcription-polymerase chain reaction analyses also confirmed that these colonies expressed pluripotent markers. The colonies were maintained over 50 passages for more than 270 days. The cells showed normal karyotypes consisting of 60 chromosomes at Passage 50. Embryoid bodies were formed by suspension culture to analyse in vitro differentiation capability. Marker genes representing the differentiation into three germ layers were expressed. Typical embryonal carcinoma was generated after injecting cells under the testis capsule of nude mice, suggesting that the cultured cells may also have the potential of in vivo differentiation. In conclusion, we generated eSLCs from SCNT bovine embryos, using a 3i system that sustained stemness, normal karyotype and pluripotency, which was confirmed by in vitro and in vivo differentiation.
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13
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Urrego R, Herrera-Puerta E, Chavarria NA, Camargo O, Wrenzycki C, Rodriguez-Osorio N. Follicular progesterone concentrations and messenger RNA expression of MATER and OCT-4 in immature bovine oocytes as predictors of developmental competence. Theriogenology 2014; 83:1179-87. [PMID: 25662108 DOI: 10.1016/j.theriogenology.2014.12.024] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 12/11/2014] [Accepted: 12/18/2014] [Indexed: 12/31/2022]
Abstract
The ability of bovine embryos to develop to the blastocyst stage and to implant and generate healthy offspring depends greatly on the competence of the oocyte. Oocyte competence is attributed to its close communication with the follicular environment and to its capacity to synthesize and store substantial amounts of messenger RNA. Higher developmental competence of bovine oocytes has been associated with both the expression of a cohort of developmental genes and the concentration of sex steroids in the follicular fluid. The aim of this study was to identify differences in the expression of FST in cumulus cells and OCT-4 and MATER in oocytes and the influence of the follicular progesterone and follicular estrogen concentration on the competence of bovine oocytes retrieved 30 minutes or 4 hours after slaughter. Cumulus-oocyte complexes (COCs) were left in postmortem ovaries for 30 minutes (group I) or 4 hours (group II) at 30 °C. Aspirated oocytes were then subjected to IVM, IVF, and IVC or were evaluated for MATER and OCT-4 messenger RNA abundance by quantitative real-time polymerase chain reaction. Total RNA was isolated from pools of 100 oocytes for each experimental replicate. Progesterone and estradiol concentration in follicular fluid was evaluated by immunoassay using an IMMULITE 2000 analyzer. Three repeats of in vitro embryo production were performed with a total of 455 (group I) and 470 (group II) COCs. There were no significant differences between the cleavage rates (72 hours postinsemination [hpi]) between both groups (63.5% vs. 69.1%). However, blastocyst (168 hpi) and hatching (216 hpi) rates were higher (P < 0.05) in group II compared with those of group I (21.3% vs. 30.7% and 27.6% vs. 51.5%, respectively). Group II oocytes exhibited the highest MATER and OCT-4 abundance (P < 0.05). Follicular estradiol concentration was not different between both the groups, whereas the progesterone concentration was lower (P ≤ 0.05) in group II follicles. These results indicate that retrieving COCs 4 hours after slaughter could increase bovine in vitro developmental competence, which is linked to higher levels of oocyte MATER and OCT-4 transcripts and lower follicular progesterone concentration. Moreover, the results of the present study contribute to the identification of factors involved in the developmental competence of immature oocytes.
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Affiliation(s)
- R Urrego
- Grupo CENTAURO, Universidad de Antioquia, Medellín, Colombia; Grupo INCA-CES, Facultad de Medicina Veterinaria y Zootecnia, Universidad CES, Medellín, Colombia.
| | - E Herrera-Puerta
- Grupo INCA-CES, Facultad de Medicina Veterinaria y Zootecnia, Universidad CES, Medellín, Colombia; Grupo Biología CES-EIA, Universidad CES, Medellín, Colombia
| | - N A Chavarria
- Grupo INCA-CES, Facultad de Medicina Veterinaria y Zootecnia, Universidad CES, Medellín, Colombia
| | - O Camargo
- Grupo Genes, Gametos y Embriones, Universidad Nacional de Colombia, Medellín, Colombia
| | - C Wrenzycki
- Clinic for Obstetrics, Gynecology and Andrology of Large and Small Animals, Faculty of Veterinary Medicine, Justus-Liebig-University Giessen, Giessen, Germany
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14
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Time-lapse dynamics of the mouse oocyte chromatin organisation during meiotic resumption. BIOMED RESEARCH INTERNATIONAL 2014; 2014:207357. [PMID: 24864231 PMCID: PMC4016838 DOI: 10.1155/2014/207357] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Accepted: 02/25/2014] [Indexed: 12/20/2022]
Abstract
In the mammalian oocyte, distinct patterns of centromeres and pericentromeric heterochromatin localisation correlate with the gamete's developmental competence. Mouse antral oocytes display two main types of chromatin organisation: SN oocytes, with a ring of Hoechst-positive chromatin surrounding the nucleolus, and NSN oocytes lacking this ring. When matured to MII and fertilised, only SN oocytes develop beyond the 2-cell, and reach full term. To give detailed information on the dynamics of the SN or NSN chromatin during meiosis resumption, we performed a 9 hr time-lapse observation. The main significant differences recorded are: (1) reduction of the nuclear area only in SN oocytes; (2) ~17 min delay of GVBD in NSN oocytes; (3) chromatin condensation, after GVBD, in SN oocytes; (4) formation of 4-5 CHCs in SN oocytes; (5) increase of the perivitelline space, ~57 min later in NSN oocytes; (6) formation of a rosette-like disposition of CHCs, ~84 min later in SN oocytes; (7) appearance of the MI plate ~40 min later in NSN oocytes. Overall, we described a pathway of transition from the GV to the MII stage that is punctuated of discrete recordable events showing their specificity and occurring with different time kinetics in the two types of oocytes.
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15
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Chalupnikova K, Solc P, Sulimenko V, Sedlacek R, Svoboda P. An oocyte-specific ELAVL2 isoform is a translational repressor ablated from meiotically competent antral oocytes. Cell Cycle 2014; 13:1187-200. [PMID: 24553115 PMCID: PMC4013169 DOI: 10.4161/cc.28107] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
At the end of the growth phase, mouse antral follicle oocytes acquire full developmental competence. In the mouse, this event is marked by the transition from the so-called non-surrounded nucleolus (NSN) chromatin configuration into the transcriptionally quiescent surrounded nucleolus (SN) configuration, which is named after a prominent perinucleolar condensed chromatin ring. However, the SN chromatin configuration alone is not sufficient for determining the developmental competence of the SN oocyte. There are additional nuclear and cytoplamic factors involved, while a little is known about the changes occurring in the cytoplasm during the NSN/SN transition. Here, we report functional analysis of maternal ELAVL2 an AU-rich element binding protein. Elavl2 gene encodes an oocyte-specific protein isoform (denoted ELAVL2°), which acts as a translational repressor. ELAVL2° is abundant in fully grown NSN oocytes, is ablated during the NSN/SN transition and remains low during the oocyte-to-embryo transition (OET). ELAVL2° overexpression during meiotic maturation causes errors in chromosome segregation, indicating the significance of naturally reduced ELAVL2° levels in SN oocytes. On the other hand, during oocyte growth, prematurely reduced Elavl2 expression results in lower yields of fully grown and meiotically matured oocytes, suggesting that Elavl2 is necessary for proper oocyte maturation. Moreover, Elavl2 knockdown showed stimulating effects on translation in fully grown oocytes. We propose that ELAVL2 has an ambivalent role in oocytes: it functions as a pleiotropic translational repressor in efficient production of fully grown oocytes, while its disposal during the NSN/SN transition contributes to the acquisition of full developmental competence.
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Affiliation(s)
| | - Petr Solc
- Institute of Animal Physiology and Genetics AS CR; Libechov, Czech Republic
| | - Vadym Sulimenko
- Institute of Molecular Genetics AS CR; Prague, Czech Republic
| | | | - Petr Svoboda
- Institute of Molecular Genetics AS CR; Prague, Czech Republic
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16
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Antonio-Rubio NR, Porras-Gómez TJ, Moreno-Mendoza N. Identification of cortical germ cells in adult ovaries from three phyllostomid bats: Artibeus jamaicensis, Glossophaga soricina and Sturnira lilium. Reprod Fertil Dev 2014; 25:825-36. [PMID: 22953782 DOI: 10.1071/rd12126] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Accepted: 07/12/2012] [Indexed: 11/23/2022] Open
Abstract
It is generally considered that, in mammals, the ovary is endowed with a finite number of oocytes at the time of birth. However, studies concerning rodents, lemurs and humans suggest the existence of stem cells from the germline that may be involved in germ-cell renewal, maintaining postnatal follicle development. This type of work on wild species is scarce; therefore the objective of this study was to determine ovarian morphology and the presence of progenitor cells from the germline of three species of phyllostomid bats (Artibeus jamaicensis, Glossophaga soricina and Sturnira lilium). The morphological characteristics of the ovaries and the expression of specific markers of germline cells, stem cells and proliferation cells were analysed. The morphology of the ovaries of the three bat species was similar. A polarised ovary with follicles at different stages of development and groups of cortical cells similar to primordial germ cells were observed. Immunofluorescent analysis showed that these cortical cells express germline, stem-cell and proliferative markers, indicating the identification of germ cells that could maintain pluripotency, as well as being mitotically active. This suggests that in the adult ovary of phyllostomid bats there may be a mechanism for the self-renewal of the germline.
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Affiliation(s)
- Nivia Rocio Antonio-Rubio
- Department of Cell Biology and Physiology, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México, DF, México
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Abstract
The most important factor affecting the oocyte and early embryo transcriptome is the legacy from the follicular environment prior to meiotic resumption. Up to the 8-cell stage, the oocyte responds to maternal instructions stored before resumption of the meiotic division. Recent evidence suggests that properly prepared or programmed oocytes (in vivo) can achieve close to 100% blastocyst rates in standard in vitro conditions/media. Therefore, the optimal oocyte requires perfect follicular timing and differentiation, but the intra-oocyte mechanisms involved in such preparation are not completely understood. In addition, the influence of maternal mRNA storage and degradation, as well as the length of the poly A tail that influences the general pattern of the oocyte/early embryo transcriptome, is an important factor. Several hypotheses have been put forth to explain the depletion of the maternal store, including the potential role of microRNA (miRNA) in this process. The activation of the embryonic genome could be dependent on, or associated with, the process of maternal mRNA degradation, but obviously other functions are being activated at this critical time point. This review will focus on the period from full-size oocytes to the eight-cell stage and will summarize the impact of the important factors, that is, follicle, maternal RNA storage and embryonic genome activation, on the transcriptome.
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Affiliation(s)
- M-A Sirard
- Centre de Recherche en Biologie de la Reproduction, Faculté des Sciences de l'Agriculture et de l'Alimentation, Pavillon des Services, Université Laval, Québec City, QC, Canada.
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Monti M, Zanoni M, Calligaro A, Ko MSH, Mauri P, Redi CA. Developmental arrest and mouse antral not-surrounded nucleolus oocytes. Biol Reprod 2013; 88:2. [PMID: 23136301 DOI: 10.1095/biolreprod.112.103887] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The antral compartment in the ovary consists of two populations of oocytes that differ by their ability to resume meiosis and to develop to the blastocyst stage. For reasons still not entirely clear, antral oocytes termed surrounded nucleolus (SN; 70% of the population of antral oocytes) develop to the blastocyst stage, whereas those called not-surrounded nucleolus (NSN) arrest at two cells. We profiled transcriptomic, proteomic, and morphological characteristics of antral oocytes and observed that NSN oocyte arrest is associated with lack of cytoplasmic lattices coincident with reduced expression of MATER and ribosomal proteins. Cytoplasmic lattices have been shown to store maternally derived mRNA and ribosomes in mammalian oocytes and embryos, and MATER has been shown to be required for cytoplasmic lattice formation. Thus, we isolated antral oocytes from a Mater(tm/tm) mouse and we observed that 84% of oocytes are of the NSN type. Our results provide the first molecular evidence to account for inability of NSN-derived embryos to progress beyond the two-cell stage; these results may be relevant to naturally occurring preimplantation embryo demise in mammals.
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Affiliation(s)
- Manuela Monti
- Scientific Department, Research Center for Regenerative Medicine, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
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Grossman D, Kalo D, Gendelman M, Roth Z. Effect of di-(2-ethylhexyl) phthalate and mono-(2-ethylhexyl) phthalate on in vitro developmental competence of bovine oocytes. Cell Biol Toxicol 2012; 28:383-96. [PMID: 22956148 DOI: 10.1007/s10565-012-9230-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2012] [Accepted: 08/20/2012] [Indexed: 11/25/2022]
Abstract
In the last decade, potential exposure of humans and animals to industrial chemicals and pesticides has been a growing concern. In the present study, di-(2-ethylhexyl) phthalate (DEHP) and mono-(2-ethylhexyl) phthalate (MEHP) were used to model the effects of endocrine-disrupting compounds and their risk in relation to early embryonic losses. Exposure of cumulus oocyte complexes during maturation to 50 μM MEHP reduced the proportion of oocytes that underwent nuclear maturation (p < 0.05) and increased the proportion of apoptotic oocytes (p < 0.05). Furthermore, phthalates reduced cleavage rate in the MEHP-treated group (p < 0.05) and the proportion of embryos developing to the blastocyst stage in both DEHP- and MEHP-treated groups (p < 0.05). The total cell count for blastocysts developing from MEHP-treated oocytes was lower than in controls (p < 0.05). Exposure of oocytes to MEHP during maturation reduced (p < 0.05) the expression of ASAH1 (an anti-apoptotic factor), CCNA2 (involved in cell cycle control), and POU5F1 (responsible for pluripotency) in matured oocytes. Furthermore, the reduced mRNA expression of POU5F1 and ASAH1 lasted into two-cell stage embryos (p < 0.05). Phthalate-induced alterations in POU5F1, ASAH1, and CCNA2 expression might explain in part the reduced developmental competence of MEHP-treated oocytes.
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Affiliation(s)
- D Grossman
- Department of Animal Sciences, Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University, Rehovot, 76100, Israel
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Gioacchini G, Giorgini E, Merrifield DL, Hardiman G, Borini A, Vaccari L, Carnevali O. Probiotics can induce follicle maturational competence: the Danio rerio case. Biol Reprod 2012; 86:65. [PMID: 22088919 DOI: 10.1095/biolreprod.111.094243] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
In the present study, the effects of the probiotic Lactobacillus rhamnosus IMC 501 on the acquisition of oocyte maturational competence was examined in zebrafish (Danio rerio). L. rhamnosus administration induced the responsiveness of incompetent follicles (stage IIIa) to 17,20-dihydroxy-4-pregnen-3-one and their in vitro maturation. Acquisition of competence by the stage IIIa follicles was further validated by changes of lhr, mprb, inhbaa (activin betaA1), tgfb1, and gdf9 gene expression, which have recently emerged as key regulators of oocyte acquisition of maturational competence, and pou5f1 gene expression, which in other models has been shown to govern the establishment of developmental competence of oocytes. In addition, a DNA microarray experiment was conducted using the same follicles, and with relative gene ontology (GO) data analysis, the molecular effects of probiotic administration emerged. Molecular analysis using PCR-DGGE (denaturing gradient gel electrophoresis) approach, providing information about only the most abundant bacterial members of the microbial community, revealed that the probiotic was able to populate the gastrointestinal tract and modulate the microbial communities, causing a clear shift in them and specifically enhancing the presence of the lactic acid bacteria Streptococcus thermophilus. At the same time, PCR-DGGE analysis revealed that the probiotic was not directly associated with the ovaries. Finally, the effects of probiotic treatment on zebrafish follicle development were also analyzed by FPA (focal plane array) Fourier transform-infrared (FT-IR) imaging, a technique that provides the overall biochemical composition of samples. Changes were found above all in stage IIIa follicles from probiotic-exposed females; the modifications, observed in protein secondary structures as well as in hydration and in bands related to phosphate moieties, allowed us to hypothesize that probiotics act at this follicle stage, affecting the maturation phase.
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Affiliation(s)
- Giorgia Gioacchini
- Dipartimento di Scienze del Mare, Università Politecnica delle Marche, Ancona, Italy
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O'Shea LC, Mehta J, Lonergan P, Hensey C, Fair T. Developmental competence in oocytes and cumulus cells: candidate genes and networks. Syst Biol Reprod Med 2012; 58:88-101. [PMID: 22313243 DOI: 10.3109/19396368.2012.656217] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Common aspects of infertility can be seen across several species. In humans, dairy cows, and mares there is only a 25-35% chance of producing a live offspring after a single insemination, whether natural or artificial. Oocyte quality and subsequent embryo development can be affected by factors such as nutrition, hormonal regulation, and environmental influence. The objective of this study was to identify genes expressed in oocytes and/or cumulus cells, across a diverse range of species, which may be linked to the ability an oocyte has to develop following fertilization. Performing a meta-analysis on previously published microarray data on various models of oocyte and embryo quality allowed for the identification of 56 candidate genes associated with oocyte quality across several species, 4 of which were identified in the cumulus cells that surround the oocyte. Twenty-one potential biomarkers were associated with increased competence and 35 potential biomarkers were associated with decreased competence. The upregulation of Metap2, and the decrease of multiple genes linked to mRNA and protein synthesis in models of competence, highlights the importance of de novo protein synthesis and its regulation for successful oocyte maturation and subsequent development. The negative regulation of Wnt signaling has emerged in human, monkey, bovine, and mouse models of oocyte competence. Atrx expression was linked to decreased competence in both oocytes and cumulus cells. Biological networks and transcription factor regulation associated with increased and decreased competence were also identified. These genes could potentially act as biomarkers of oocyte quality or as pharmacological targets for manipulation in order to improve oocyte developmental potential.
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Affiliation(s)
- Lynne C O'Shea
- School of Biomolecular and Biomedical Science, Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
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22
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Liu YJ, Nakamura T, Nakano T. Essential Role of DPPA3 for Chromatin Condensation in Mouse Oocytogenesis1. Biol Reprod 2012; 86:40. [DOI: 10.1095/biolreprod.111.095018] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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23
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Demant M, Trapphoff T, Fröhlich T, Arnold GJ, Eichenlaub-Ritter U. Vitrification at the pre-antral stage transiently alters inner mitochondrial membrane potential but proteome of in vitro grown and matured mouse oocytes appears unaffected. Hum Reprod 2012; 27:1096-111. [PMID: 22258663 DOI: 10.1093/humrep/der453] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Vitrification is a fast and effective method to cryopreserve ovarian tissue, but it might influence mitochondrial activity and affect gene expression to cause persistent alterations in the proteome of oocytes that grow and mature following cryopreservation. METHODS In part one of the study, the inner mitochondrial membrane potential (Ψ(mit)) of JC-1 stained oocytes from control and CryoTop vitrified pre-antral follicles was analyzed by confocal microscopy at Day 0, or after culture of follicles for 1 or 12 days. In part two, proteins of in vivo grown germinal vesicle (GV) oocytes were subjected to proteome analysis by SDS polyacrylamide gel electrophoresis, tryptic in-gel digestion of gel slices, and one-dimensional-nano-liquid chromatography of peptides on a multi-dimensional-nano-liquid chromatography system followed by mass spectrometry (LC-MS/MS) and Uniprot Gene Ontology (GO) analysis. In part three, samples containing the protein amount of 40 GV and metaphase II (MII) oocytes, respectively, from control and vitrified pre-antral follicles cultured for 12 or 13 days were subjected to 2D DIGE saturation labeling and separated by isoelectric focusing and SDS gel electrophoresis (2D DIGE), followed by DeCyder(Tm) analysis of spot patterns in three independent biological replicates. Statistical and hierarchical cluster analysis was employed to compare control and vitrified groups. RESULTS (i) Mitochondrial inner membrane potential differs significantly between control and vitrified GV oocytes at Day 0 and Day 1, but is similar at Day 12 of culture. (ii) LC-MS/MS analysis of SDS gel fractionated protein lysates of 988 mouse GV oocytes revealed identification of 1123 different proteins with a false discovery rate of <1%. GO analysis assigned 811 proteins to the 'biological process' subset. Thirty-five percent of the proteins corresponded to metabolic processes, about 15% to mitochondrion and transport, each, and close to 8% to oxidation-reduction processes. (iii) From the 2D-saturation DIGE analysis 1891 matched spots for GV-stage and 1718 for MII oocyte proteins were detected and the related protein abundances in vitrified and control oocytes were quantified. None of the spots was significantly altered in intensity, and hierarchical cluster analysis as well as histograms of p and q values suggest that vitrification at the pre-antral stage does not significantly alter the proteome of GV or MII oocytes compared with controls. CONCLUSIONS Vitrification appears to be associated with a significant transient increase in Ψ(mit) in oocyte mitochondria, which disappears when oocyte/cumulus cell apposition is restored upon development to the antral stage. The nano-LC-MS/MS analysis of low numbers of oocytes is useful to obtain information on relevant biological signaling pathways based on protein identifications. For quantitative comparisons, saturation 2D DIGE analysis is superior to LC-MS/MS due to its high sensitivity in cases where the biological material is very limited. Genetic background, age of the female, and/or stimulation protocol appear to influence the proteome pattern. However, the quantitative 2D DIGE approach provides evidence that vitrification does not affect the oocyte proteome after recovery from transient loss of cell-cell interactions, in vitro growth and in vitro maturation under tested conditions. Therefore, transient changes in mitochondrial activity by vitrification do not appear causal to persistent alterations in the mitochondrial or overall oocyte proteome.
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Affiliation(s)
- Myriam Demant
- Laboratory for Functional Genome Analysis, Gene Center, Ludwig-Maximilians-Universität, München 81377, Germany
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Esmaeilian Y, Dedeoglu BG, Atalay A, Erdemli E. Investigation of stem cells in adult and prepubertal mouse ovaries. ACTA ACUST UNITED AC 2012. [DOI: 10.4236/abb.2012.37115] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Zuccotti M, Merico V, Bellone M, Mulas F, Sacchi L, Rebuzzini P, Prigione A, Redi CA, Bellazzi R, Adjaye J, Garagna S. Gatekeeper of pluripotency: a common Oct4 transcriptional network operates in mouse eggs and embryonic stem cells. BMC Genomics 2011; 12:1-13. [PMID: 21729306 PMCID: PMC3154874 DOI: 10.1186/1471-2164-12-345] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2011] [Accepted: 07/05/2011] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Oct4 is a key factor of an expanded transcriptional network (Oct4-TN) that governs pluripotency and self-renewal in embryonic stem cells (ESCs) and in the inner cell mass from which ESCs are derived. A pending question is whether the establishment of the Oct4-TN initiates during oogenesis or after fertilisation. To this regard, recent evidence has shown that Oct4 controls a poorly known Oct4-TN central to the acquisition of the mouse egg developmental competence. The aim of this study was to investigate the identity and extension of this maternal Oct4-TN, as much as whether its presence is circumscribed to the egg or maintained beyond fertilisation. RESULTS By comparing the genome-wide transcriptional profile of developmentally competent eggs that express the OCT4 protein to that of developmentally incompetent eggs in which OCT4 is down-regulated, we unveiled a maternal Oct4-TN of 182 genes. Eighty of these transcripts escape post-fertilisation degradation and represent the maternal Oct4-TN inheritance that is passed on to the 2-cell embryo. Most of these 80 genes are expressed in cancer cells and 37 are notable companions of the Oct4 transcriptome in ESCs. CONCLUSIONS These results provide, for the first time, a developmental link between eggs, early preimplantation embryos and ESCs, indicating that the molecular signature that characterises the ESCs identity is rooted in oogenesis. Also, they contribute a useful resource to further study the mechanisms of Oct4 function and regulation during the maternal-to-embryo transition and to explore the link between the regulation of pluripotency and the acquisition of de-differentiation in cancer cells.
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Affiliation(s)
- Maurizio Zuccotti
- Sezione di Istologia ed Embriologia, Dipartimento di Medicina Sperimentale, Universita' degli Studi di Parma, Parma, Italy.
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Fully-mature antral mouse oocytes are transcriptionally silent but their heterochromatin maintains a transcriptional permissive histone acetylation profile. J Assist Reprod Genet 2011; 28:1193-6. [PMID: 21468653 DOI: 10.1007/s10815-011-9562-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2011] [Accepted: 03/21/2011] [Indexed: 10/18/2022] Open
Abstract
PURPOSE The final stages of antral mouse oocytes maturation are characterised by the transition from transcriptionally active NSN to inactive SN oocytes. Here, we studied the profile of histone acetylation changes occurring during the NSN-to-SN transition. METHODS During the NSN-to-SN transition, oocytes were classified based on their chromatin organisation and the immunocytochemical profile of histones H2B, H3 and H4 acetylation was analysed. RESULTS We described four patterns of immunostaining common to the three acetylated histones, corresponding to stages of progressive localisation: From a diffused distribution in NSN oocytes to the association with constitutive heterochromatin and then to the nucleolar surface region in SN oocytes. CONCLUSIONS The maintenance of a favourable transcriptional epigenetic context, in the heterochromatin of transcriptionally silent SN oocytes, might be related to the early stages of development when transcripts from these heterochromatic regions are functional to preimplantation progression.
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Zuccotti M, Merico V, Cecconi S, Redi CA, Garagna S. What does it take to make a developmentally competent mammalian egg? Hum Reprod Update 2011; 17:525-40. [DOI: 10.1093/humupd/dmr009] [Citation(s) in RCA: 122] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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28
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Paciolla M, Boni R, Fusco F, Pescatore A, Poeta L, Ursini MV, Lioi MB, Miano MG. Nuclear factor-kappa-B-inhibitor alpha (NFKBIA) is a developmental marker of NF- B/p65 activation during in vitro oocyte maturation and early embryogenesis. Hum Reprod 2011; 26:1191-201. [DOI: 10.1093/humrep/der040] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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29
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Zuccotti M, Merico V, Redi CA, Bellazzi R, Adjaye J, Garagna S. Role of Oct-4 during acquisition of developmental competence in mouse oocyte. Reprod Biomed Online 2009; 19 Suppl 3:57-62. [DOI: 10.1016/s1472-6483(10)60284-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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