1
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Islam MN, Ebara F, Kawasaki K, Konno T, Tatemoto H, Yamanaka KI. Attenuation of endoplasmic reticulum stress improves invitro growth and subsequent maturation of bovine oocytes. Theriogenology 2024; 228:54-63. [PMID: 39096624 DOI: 10.1016/j.theriogenology.2024.07.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 07/03/2024] [Accepted: 07/30/2024] [Indexed: 08/05/2024]
Abstract
Endoplasmic reticulum (ER) stress interferes with developmental processes in oocyte maturation and embryo development. Invitro growth (IVG) is associated with low developmental competence, and ER stress during IVG culture may play a role. Therefore, this study aimed to examine the effect of tauroursodeoxycholic acid (TUDCA), an ER stress inhibitor, on the IVG of bovine oocytes to understand the role of ER stress. Oocyte-granulosa cell complexes (OGCs) were collected from early antral follicles (1.5-1.8 mm) and allowed to grow in vitro for 5 days at 38.5 °C in a humidified atmosphere containing 5 % CO2. Basic growth culture medium was supplemented with TUDCA at various concentrations (0, 50, 100, 250, and 500 μM). After IVG, oocyte diameters were similar among groups, but the antrum formation rate tended to be higher in the TUDCA 100 μM group. The mRNA expression levels of ER stress-associated genes (PERK, ATF6, ATF4, CHOP, BAX, IRE1, and XBP1) in OGCs were downregulated in the TUDCA 100 μM group than those in the control group. Moreover, the TUDCA 100 μM group exhibited reduced ROS production with higher GSH levels and improved in vitro-grown oocyte maturation compared with those in the control group. In contrast, no difference in the developmental competence of embryos following invitro fertilization was observed between the control and TUDCA 100 μM groups. These results indicate that ER stress could impair IVG and subsequent maturation rate of bovine oocytes, and TUDCA could alleviate these detrimental effects. These outcomes might improve the quality of oocytes in IVG culture in assisted reproductive technology.
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Affiliation(s)
- Md Nuronnabi Islam
- Faculty of Agriculture, Saga University, Saga, Japan; The United Graduate School of Agricultural Science, Kagoshima University, Kagoshima, Japan; Department of Animal Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Fumio Ebara
- Faculty of Agriculture, Saga University, Saga, Japan; The United Graduate School of Agricultural Science, Kagoshima University, Kagoshima, Japan
| | - Kokoro Kawasaki
- Faculty of Agriculture, University of the Ryukyus, Okinawa, Japan
| | - Toshihiro Konno
- The United Graduate School of Agricultural Science, Kagoshima University, Kagoshima, Japan; Faculty of Agriculture, University of the Ryukyus, Okinawa, Japan
| | - Hideki Tatemoto
- The United Graduate School of Agricultural Science, Kagoshima University, Kagoshima, Japan; Faculty of Agriculture, University of the Ryukyus, Okinawa, Japan
| | - Ken-Ichi Yamanaka
- Faculty of Agriculture, Saga University, Saga, Japan; The United Graduate School of Agricultural Science, Kagoshima University, Kagoshima, Japan.
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2
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Li JR, Wu SL, Hu LL, Liao BY, Sun SC. HT-2 toxin impairs porcine oocyte in vitro maturation through disruption of endomembrane system. Theriogenology 2024; 226:286-293. [PMID: 38954997 DOI: 10.1016/j.theriogenology.2024.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 06/17/2024] [Accepted: 06/23/2024] [Indexed: 07/04/2024]
Abstract
HT-2 toxin is a type of mycotoxin which is shown to affect gastric and intestinal lesions, hematopoietic and immunosuppressive effects, anorexia, lethargy, nausea. Recently, emerging evidences indicate that HT-2 also disturbs the reproductive system. In this study, we investigated the impact of HT-2 toxin exposure on the organelles of porcine oocytes. Our results found that the abnormal distribution of endoplasmic reticulum increased after HT-2 treatment, with the perturbation of ribosome protein RPS3 and GRP78 expression; Golgi apparatus showed diffused localization pattern and GM130 localization was also impaired, thereby affecting the Rab10-based vesicular transport; Due to the impairment of ribosomes, ER, and Golgi apparatus, the protein supply to lysosomes was hindered, resulting in lysosomal damage, which further disrupted the LC3-based autophagy. Moreover, the results indicated that the function and distribution of mitochondria were also affected by HT-2 toxin, showing with fragments of mitochondria, decreased TMRE and ATP level. Taken together, our study suggested that HT-2 toxin exposure induces damage to the organelles for endomembrane system, which further inhibited the meiotic maturation of porcine oocytes.
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Affiliation(s)
- Jia-Rui Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Si-Le Wu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Lin-Lin Hu
- Key Laboratory of Research on Clinical Molecular Diagnosis for High Incidence Diseases in Western Guangxi, Reproductive Medicine, Guangxi Medical and Health Key Discipline Construction Project, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Bi-Yun Liao
- Key Laboratory of Research on Clinical Molecular Diagnosis for High Incidence Diseases in Western Guangxi, Reproductive Medicine, Guangxi Medical and Health Key Discipline Construction Project, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China.
| | - Shao-Chen Sun
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.
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3
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Kim YW, Yang SG, Seo BB, Koo DB, Park HJ. Deoxynivalenol leads to endoplasmic reticulum stress-mediated apoptosis via the IRE1/JNK/CHOP pathways in porcine embryos. Food Chem Toxicol 2024; 188:114633. [PMID: 38608924 DOI: 10.1016/j.fct.2024.114633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 03/22/2024] [Accepted: 03/29/2024] [Indexed: 04/14/2024]
Abstract
The cytotoxic mycotoxin deoxynivalenol (DON) reportedly has adverse effects on oocyte maturation and embryonic development in pigs. Recently, the interplay between cell apoptosis and endoplasmic reticulum (ER) stress has garnered increasing attention in embryogenesis. However, the involvement of the inositol-requiring enzyme 1 (IRE1)/c-jun N-terminal kinase (JNK)/C/EBP homologous protein (CHOP) pathways of unfolded protein response (UPR) signaling in DON-induced apoptosis in porcine embryos remains unknown. In this study, we revealed that exposure to DON (0.25 μM) substantially decreased cell viability until the blastocyst stage in porcine embryos, concomitant with initiation of cell apoptosis through the IRE1/JNK/CHOP pathways in response to ER stress. Quantitative PCR confirmed that UPR signaling-related transcription factors were upregulated in DON-treated porcine blastocysts. Western blot analysis showed that IRE1/JNK/CHOP signaling was activated in DON-exposed porcine embryos, indicating that ER stress-associated apoptosis was instigated. The ER stress inhibitor tauroursodeoxycholic acid protected against DON-induced ER stress in porcine embryos, indicating that the toxic effects of DON on early developmental competence of porcine embryos can be prevented. In conclusion, DON exposure impairs the developmental ability of porcine embryos by inducing ER stress-mediated apoptosis via IRE1/JNK/CHOP signaling.
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Affiliation(s)
- Ye-Won Kim
- Department of Biotechnology, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk, 38453, Republic of Korea; DU Center for Infertility, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk, 38453, Republic of Korea
| | - Seul-Gi Yang
- DU Center for Infertility, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk, 38453, Republic of Korea; Department of Companion Animal Industry, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, 38453, Republic of Korea
| | - Byoung-Boo Seo
- Department of Companion Animal Industry, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, 38453, Republic of Korea
| | - Deog-Bon Koo
- Department of Biotechnology, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk, 38453, Republic of Korea; DU Center for Infertility, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk, 38453, Republic of Korea; Department of Companion Animal Industry, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, 38453, Republic of Korea.
| | - Hyo-Jin Park
- Department of Biotechnology, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk, 38453, Republic of Korea; DU Center for Infertility, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk, 38453, Republic of Korea.
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4
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Li C, Ji KB, Choi HY, Liu H, Kim M. Schisandrin B enhances embryo competence and potentially mitigates endoplasmic reticulum stress during porcine preimplantation development. Theriogenology 2024; 220:26-34. [PMID: 38460201 DOI: 10.1016/j.theriogenology.2024.02.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 02/28/2024] [Accepted: 02/28/2024] [Indexed: 03/11/2024]
Abstract
Endoplasmic reticulum (ER) stress induced by agents such as tunicamycin (TM) substantially impedes the developmental progression of porcine embryos. Lignan compounds such as Schisandrin B (Sch-B), may have the potential to mitigate this stress. However, there are few studies on the effects of Sch-B on embryo development. To address this research gap, this study evaluates the protective efficacy of Sch-B against TM-induced ER stress during pivotal stages of porcine embryogenesis. Notably, embryos treated with Sch-B exhibited pronounced resistance to TM-induced developmental arrest, particularly at the 4-cell stage, facilitating progression to the 8-cell stage and subsequent blastocyst formation. It was also observed that Sch-B effectively reduced reactive oxygen species (ROS) levels and improved mitochondrial membrane potential (MMP). Furthermore, Sch-B positively influenced the expression of several stress-related genes. These findings highlight the promising role of Sch-B in improving porcine embryo development and mitigating ER stress.
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Affiliation(s)
- Chuang Li
- Division of Animal and Dairy Science, College of Agriculture and Life Science, Chungnam National University, Daejeon, South Korea
| | - Kuk Bin Ji
- Division of Animal and Dairy Science, College of Agriculture and Life Science, Chungnam National University, Daejeon, South Korea
| | - Ho Yong Choi
- Division of Animal and Dairy Science, College of Agriculture and Life Science, Chungnam National University, Daejeon, South Korea
| | - Haixing Liu
- Department of Animal Science, College of Agriculture, Yanbian University, Yanji, Jilin, China
| | - Minkyu Kim
- Division of Animal and Dairy Science, College of Agriculture and Life Science, Chungnam National University, Daejeon, South Korea; MK Biotech Inc., 99 Daehak-ro, Yuseong-gu, Daejeon, South Korea.
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5
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Woo SM, Yang SG, Kim YW, Koo DB, Park HJ. Ochratoxin A triggers endoplasmic reticulum stress through PERK/NRF2 signaling and DNA damage during early embryonic developmental competence in pigs. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 269:115757. [PMID: 38064788 DOI: 10.1016/j.ecoenv.2023.115757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 11/20/2023] [Accepted: 11/26/2023] [Indexed: 01/12/2024]
Abstract
Ochratoxin A (OTA), a mycotoxin found in foods, has a deleterious effect on female reproduction owing to its endocrine-disrupting activity mediated through endoplasmic reticulum (ER) stress and reactive oxygen species (ROS) production. However, the mechanisms of OTA-induced ER stress in pig embryos during in vitro culture (IVC) are not yet fully understood. In the present study, porcine embryos were cultured for two days in an IVC medium supplemented with 0.5, 1.0, and 5.0 μM OTA, which led to an OTA-induced reduction in the developmental rate of blastocysts. The mRNA-seq transcriptome analysis revealed that the reduced blastocyst development ability of OTA-exposed porcine embryos was caused by ER stress, ultimately resulting in the accumulation of ROS and the occurrence of apoptosis. The expression levels of some UPR/PERK signaling-related genes (DDIT3, EIF2AK3, EIF2S1, NFE2L2, ATF4, EIF2A, and KEAP1) were found to differ in OTA-exposed pig embryos. OTA induces DNA damage by triggering an increase in RAD51/γ-H2AX levels and suppressing p-NRF2 activity. This effect is mediated through intracellular ROS and superoxide accumulation in the nuclei of porcine embryos. The cytotoxicity of OTA increased the activation of the PERK signal pathways (p-PERK, PERK, p-eIF2α, eIF2α, ATF4, and CHOP) in porcine embryos, with abnormal distribution of the ER observed around the nucleus. Collectively, our findings indicate that ER stress is a major cause of decline in the development of porcine embryos exposed to OTA. Therefore, OTA exposure induces ER stress and DNA damage via oxidative stress by disrupting PERK/NRF2 signaling activity in the developmental competence of porcine embryos during IVC.
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Affiliation(s)
- Seong-Min Woo
- Department of Biotechnology, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk 38453, Republic of Korea; Institute of Infertility, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk 38453, Republic of Korea
| | - Seul-Gi Yang
- Department of Biotechnology, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk 38453, Republic of Korea; Institute of Infertility, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk 38453, Republic of Korea
| | - Ye-Won Kim
- Department of Biotechnology, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk 38453, Republic of Korea; Institute of Infertility, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk 38453, Republic of Korea
| | - Deog-Bon Koo
- Department of Biotechnology, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk 38453, Republic of Korea; Institute of Infertility, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk 38453, Republic of Korea; Department of Companion Animal Industry, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk 38453, Republic of Korea.
| | - Hyo-Jin Park
- Department of Biotechnology, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk 38453, Republic of Korea; Institute of Infertility, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk 38453, Republic of Korea.
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6
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Pioltine EM, Costa CB, Franchi FF, dos Santos PH, Nogueira MFG. Tauroursodeoxycholic Acid Supplementation in In Vitro Culture of Indicine Bovine Embryos: Molecular and Cellular Effects on the In Vitro Cryotolerance. Int J Mol Sci 2023; 24:14060. [PMID: 37762363 PMCID: PMC10531190 DOI: 10.3390/ijms241814060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/30/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
During embryo development, the endoplasmic reticulum (ER) acts as an important site for protein biosynthesis; however, in vitro culture (IVC) can negatively affect ER homeostasis. Therefore, the aim of our study was to evaluate the effects of the supplementation of tauroursodeoxycholic acid (TUDCA), an ER stress inhibitor, in the IVC of bovine embryos. Two experiments were carried out: Exp. 1: an evaluation of blastocyst rate, hatching kinetics, and gene expression of hatched embryos after being treated with different concentrations of TUDCA (50, 200, or 1000 μM) in the IVC; Exp. 2: an evaluation of the re-expansion, hatching, and gene expression of hatched embryos previously treated with 200 µM of TUDCA at IVC and submitted to vitrification. There was no increase in the blastocyst and hatched blastocyst rates treated with TUDCA in the IVC. However, embryos submitted to vitrification after treatment with 200 µM of TUDCA underwent an increased hatching rate post-warming together with a down-regulation in the expression of ER stress-related genes and the accumulation of lipids. In conclusion, this work showed that the addition of TUDCA during in vitro culture can improve the cryotolerance of the bovine blastocyst through the putative modulation of ER and oxidative stress.
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Affiliation(s)
- Elisa Mariano Pioltine
- Multi-User Laboratory of Phytomedicines Pharmacology, and Biotechnology (PhitoPharmaTec), Department of Pharmacology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-000, Brazil
| | - Camila Bortoliero Costa
- Multi-User Laboratory of Phytomedicines Pharmacology, and Biotechnology (PhitoPharmaTec), Department of Pharmacology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-000, Brazil
- Laboratory of Embryonic Micromanipulation, Department of Biological Sciences, School of Sciences and Languages, São Paulo State University (UNESP), Assis 19806-900, Brazil
| | - Fernanda Fagali Franchi
- Multi-User Laboratory of Phytomedicines Pharmacology, and Biotechnology (PhitoPharmaTec), Department of Pharmacology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-000, Brazil
| | - Priscila Helena dos Santos
- Multi-User Laboratory of Phytomedicines Pharmacology, and Biotechnology (PhitoPharmaTec), Department of Pharmacology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-000, Brazil
| | - Marcelo Fábio Gouveia Nogueira
- Multi-User Laboratory of Phytomedicines Pharmacology, and Biotechnology (PhitoPharmaTec), Department of Pharmacology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-000, Brazil
- Laboratory of Embryonic Micromanipulation, Department of Biological Sciences, School of Sciences and Languages, São Paulo State University (UNESP), Assis 19806-900, Brazil
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7
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Chen W, E Q, Sun B, Zhang P, Li N, Fei S, Wang Y, Liu S, Liu X, Zhang X. PARP1-catalyzed PARylation of YY1 mediates endoplasmic reticulum stress in granulosa cells to determine primordial follicle activation. Cell Death Dis 2023; 14:524. [PMID: 37582914 PMCID: PMC10427711 DOI: 10.1038/s41419-023-05984-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 07/10/2023] [Accepted: 07/12/2023] [Indexed: 08/17/2023]
Abstract
Although only a small number of primordial follicles are known to be selectively activated during female reproductive cycles, the mechanisms that trigger this recruitment remain largely uncharacterized. Misregulated activation of primordial follicles may lead to the exhaustion of the non-renewable pool of primordial follicles, resulting in premature ovarian insufficiency. Here, we found that poly(ADP-ribose) polymerase 1 (PARP1) enzymatic activity in the surrounding granulosa cells (GCs) in follicles determines the subpopulation of the dormant primordial follicles to be awakened. Conversely, specifically inhibiting PARP1 in oocytes in an in vitro mouse follicle reconstitution model does not affect primordial follicle activation. Further analysis revealed that PARP1-catalyzed transcription factor YY1 PARylation at Y185 residue facilitates YY1 occupancy at Grp78 promoter, a key molecular chaperone of endoplasmic reticulum stress (ERS), and promotes Grp78 transcription in GCs, which is required for GCs maintaining proper ERS during primordial follicle activation. Inhibiting PARP1 prevents the loss of primordial follicle pool by attenuating the excessive ERS in GCs under fetal bisphenol A exposure. Together, we demonstrate that PARP1 in GCs acts as a pivotal modulator to determine the fate of the primordial follicles and may represent a novel therapeutic target for the retention of primordial follicle pool in females.
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Affiliation(s)
- Wei Chen
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Qiukai E
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Bo Sun
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
- Department of Obstetrics and Gynecology, the Affiliated Jiangning Hospital of Nanjing Medical University, 211166, Nanjing, China
| | - Pengxue Zhang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Nan Li
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Shujia Fei
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Yingnan Wang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Shuting Liu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Xiaoqiu Liu
- College of Basic Medical Science, China Medical University, Shenyang, 110122, China.
| | - Xuesen Zhang
- College of Basic Medical Science, China Medical University, Shenyang, 110122, China.
- Nanjing Medical University, Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing, 211166, China.
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8
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Marsico TV, Silva MV, Valente RS, Annes K, Rissi VB, Glanzner WG, Sudano MJ. Unraveling the Consequences of Oxygen Imbalance on Early Embryo Development: Exploring Mitigation Strategies. Animals (Basel) 2023; 13:2171. [PMID: 37443969 DOI: 10.3390/ani13132171] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/24/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023] Open
Abstract
Although well-established and adopted by commercial laboratories, the in vitro embryo production system still requires refinements to achieve its highest efficiency. Early embryonic development is a dynamic event, demanding suitable conditions to provide a high number of embryos with quality and competence. The first step to obtaining an optimized in vitro environment is to know the embryonic metabolism and energy request throughout the different stages of development. Oxygen plays a crucial role in several key biological processes necessary to sustain and complete embryonic development. Nonetheless, there is still controversy regarding the optimal in vitro atmospheric concentrations during culture. Herein, we discuss the impact of oxygen tension on the viability of in vitro-produced embryos during early development. The importance of oxygen tension is addressed as its roles regarding essential embryonic traits, including embryo production rates, embryonic cell viability, gene expression profile, epigenetic regulation, and post-cryopreservation survival. Finally, we highlight the damage caused by in vitro unbalanced oxygen tensions and strategies to mitigate the harmful effects.
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Affiliation(s)
- Thamiris Vieira Marsico
- Center for Natural and Human Sciences, Federal University of ABC, Santo André 09210-580, SP, Brazil
| | - Mara Viana Silva
- Center for Natural and Human Sciences, Federal University of ABC, Santo André 09210-580, SP, Brazil
| | - Roniele Santana Valente
- Center for Natural and Human Sciences, Federal University of ABC, Santo André 09210-580, SP, Brazil
| | - Kelly Annes
- Department of Genetics and Evolution, Federal University of São Carlos, São Carlos 13565-905, SP, Brazil
| | - Vitor Braga Rissi
- Faculty of Veterinary Medicine, Federal University of Santa Catarina, UFSC, Curitibanos 89520-000, SC, Brazil
| | - Werner Giehl Glanzner
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada
| | - Mateus José Sudano
- Center for Natural and Human Sciences, Federal University of ABC, Santo André 09210-580, SP, Brazil
- Department of Genetics and Evolution, Federal University of São Carlos, São Carlos 13565-905, SP, Brazil
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9
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Lu W, Gao Q, Wei J, Xie W, Zhang H, Yuan Z, Han Y, Weng Q. Seasonal changes in endoplasmic reticulum stress and ovarian steroidogenesis in the muskrats ( Ondatra zibethicus). Front Endocrinol (Lausanne) 2023; 14:1123699. [PMID: 36824363 PMCID: PMC9941330 DOI: 10.3389/fendo.2023.1123699] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 01/25/2023] [Indexed: 02/09/2023] Open
Abstract
Many studies have shown roles for endoplasmic reticulum stress (ERS)/unfolded protein response (UPR) signaling cascades with ovarian folliculogenesis, and oocyte maturation. In this study, we investigated seasonal changes in ERS and ovarian steroidogenesis in the muskrats (Ondatra zibethicus) during the breeding season (BS) and non-breeding season (NBS). There were noticeable seasonal variations in the weight and size of muskrat ovaries with values higher in the BS than that in NBS. The circulating luteinizing hormone (LH), follicle-stimulating hormone (FSH), 17β-estradiol, and progesterone of the female muskrats were higher during the BS. The RNA-seq data of ovaries during different seasons revealed 2580 differentially expressed genes, further analysis showed a prominent enrichment of ERS-related pathways and ovarian steroidogenesis pathway. Immunohistochemical results showed that GRP78 and steroidogenic enzymes (P450scc, 3β-HSD, P450c17, and P450arom) existed in the various kinds of cells in muskrat ovaries during the BS and NBS. In ovaries from the BS, the mRNA levels of P450scc, P450arom, P450c17, and 3β-HSD were considerably higher. Furthermore, the expression levels of oxidative stress-related genes (SOD2, CAT, and GPX1) and UPR signal genes (Bip/GRP78, ATF4, ATF6, and XBP1s) were increased strikingly higher during the BS in comparison with the NBS. However, the mRNA levels of CCAAT-enhancer-binding protein homologous protein (CHOP) and caspase-3 had no considerable difference between the BS and NBS. Taken together, these results suggested that UPR signaling associated with the seasonal changes in ovarian steroidogenesis is activated in the BS and the delicate balance in redox regulation is important for seasonal reproduction in the muskrats.
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Affiliation(s)
- Wenjing Lu
- College of Biological Science and Technology, Beijing Forestry University, Beijing, China
| | - Qingjing Gao
- College of Biological Science and Technology, Beijing Forestry University, Beijing, China
| | - Jinlan Wei
- School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenqian Xie
- College of Biological Science and Technology, Beijing Forestry University, Beijing, China
| | - Haolin Zhang
- College of Biological Science and Technology, Beijing Forestry University, Beijing, China
| | - Zhengrong Yuan
- College of Biological Science and Technology, Beijing Forestry University, Beijing, China
| | - Yingying Han
- College of Biological Science and Technology, Beijing Forestry University, Beijing, China
| | - Qiang Weng
- College of Biological Science and Technology, Beijing Forestry University, Beijing, China
- *Correspondence: Qiang Weng,
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10
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Li R, Xin B, Wang Q, Wang Z, Fu H, Yan Z, Zhu Y. Combined effect of unfolded protein response and circZc3h4, circRNA Scar in mouse ovary and uterus damage induced by procymidone. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 229:113068. [PMID: 34902777 DOI: 10.1016/j.ecoenv.2021.113068] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 11/22/2021] [Accepted: 12/05/2021] [Indexed: 06/14/2023]
Abstract
Procymidone (PCM) is a fungicide commonly used to prevent and control plant diseases, and it is also an environmental endocrine disruptor that has a typical anti-androgen effect on the function and/or structure of the vertebrate reproductive system. The activation of the unfolded protein response (UPR) will fold the protein correctly to ensure the cell's survival. PCM regulates GRP78 by affecting the level of hormones, and there is a regulatory relationship between the UPR, the circRNAs and the miRNAs. In vivo experiments, PCM (suspended in soybean oil) was orally administered to adolescent female mice for 21 days in 3 different doses of 50 mg kg-1 day-1 (low dose), 100 mg kg-1 day-1 (medium dose) and 200 mg kg-1 day-1 (high dose) to cause ovaries and uteruses damage, and in vitro experiments, various doses of PCM from 0.33 × 10-5 (low dose) to 1 × 10-5 (medium dose) then 3 × 10-5 M (high dose) were used to induce injury on the ovaries and uteri of the mice. We found out that both in vivo and in vitro, PCM caused dose-dependent damages to the ovaries and uteri, increased their circRNA Scar levels and decreased circZc3h4 abundance. Also, all UPR signaling pathways in the low-dose group and some in the middle-dose group were activated. It is speculated that UPR may antagonize the partial ovarian and uterine damage in adolescent mice induced by PCM at doses less than NOAEL via changes in circZc3h4 and circRNA Scar.
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Affiliation(s)
- Rui Li
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Medical School, Hunan Normal University, Changsha 410013, China; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha 410081, China; Department of Preventive Medicine, Medical School, Hunan Normal University, Changsha 410013, China
| | - Bingyan Xin
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Medical School, Hunan Normal University, Changsha 410013, China; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha 410081, China; Department of Preventive Medicine, Medical School, Hunan Normal University, Changsha 410013, China
| | - Qing Wang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Medical School, Hunan Normal University, Changsha 410013, China; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha 410081, China; Department of Preventive Medicine, Medical School, Hunan Normal University, Changsha 410013, China
| | - Zhen Wang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Medical School, Hunan Normal University, Changsha 410013, China; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha 410081, China; Department of Preventive Medicine, Medical School, Hunan Normal University, Changsha 410013, China
| | - Hu Fu
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Medical School, Hunan Normal University, Changsha 410013, China; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha 410081, China; Department of Preventive Medicine, Medical School, Hunan Normal University, Changsha 410013, China
| | - Zhengli Yan
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Medical School, Hunan Normal University, Changsha 410013, China; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha 410081, China; Department of Preventive Medicine, Medical School, Hunan Normal University, Changsha 410013, China
| | - Yongfei Zhu
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Medical School, Hunan Normal University, Changsha 410013, China; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha 410081, China; Department of Preventive Medicine, Medical School, Hunan Normal University, Changsha 410013, China.
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11
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Yu S, Gao L, Zhang C, Wang Y, Lan H, Chu Q, Li S, Zheng X. Glycine Ameliorates Endoplasmic Reticulum Stress Induced by Thapsigargin in Porcine Oocytes. Front Cell Dev Biol 2021; 9:733860. [PMID: 34917610 PMCID: PMC8670231 DOI: 10.3389/fcell.2021.733860] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 11/08/2021] [Indexed: 02/05/2023] Open
Abstract
The endoplasmic reticulum (ER) is a multifunctional organelle in the cytoplasm that plays important roles in female mammalian reproduction. The endoplasmic reticulum and mitochondria interact to maintain the normal function of cells by maintaining intracellular calcium homeostasis. As proven by previous research, glycine (Gly) can regulate the intracellular free calcium concentration ([Ca2+]i) and enhance mitochondrial function to improve oocyte maturation in vitro. The effect of Gly on ER function during oocyte in vitro maturation (IVM) is not clear. In this study, we induced an ER stress model with thapsigargin (TG) to explore whether Gly can reverse the ER stress induced by TG treatment and whether it is associated with calcium regulation. The results showed that the addition of Gly could improve the decrease in the average cumulus diameter, the first polar body excretion rate caused by TG-induced ER stress, the cleavage rate and the blastocyst rate. Gly supplementation could reduce the ER stress induced by TG by significantly improving the ER levels and significantly downregulating the expression of genes related to ER stress (Xbp1, ATF4, and ATF6). Moreover, Gly also significantly alleviated the increase in reactive oxygen species (ROS) levels and the decrease in mitochondrial membrane potential (ΔΨ m) to improve mitochondrial function in porcine oocytes exposed to TG. Furthermore, Gly reduced the [Ca2+]i and mitochondrial Ca2+ ([Ca2+]m) levels and restored the ER Ca2+ ([Ca2+]ER) levels in TG-exposed porcine oocytes. Moreover, we found that the increase in [Ca2+]i may be caused by changes in the distribution and expression of inositol 1,4,5-triphosphate receptor (IP3R1) and voltage-dependent anion channel 1 (VDAC1), while Gly can restore the distribution and expression of IP3R1 and VDAC1 to normal levels. Apoptosis-related indexes (Caspase 3 activity and Annexin-V) and gene expression Bax, Cyto C, and Caspase 3) were significantly increased in the TG group, but they could be restored by adding Gly. Our results suggest that Gly can ameliorate ER stress and apoptosis in TG-exposed porcine oocytes and can further enhance the developmental potential of porcine oocytes in vitro.
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Affiliation(s)
- Sicong Yu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Lepeng Gao
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Chang Zhang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Yumeng Wang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Hainan Lan
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Qianran Chu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Suo Li
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Xin Zheng
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
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12
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Fu B, Ma H, Zhang DJ, Wang L, Li ZQ, Guo ZH, Liu ZG, Wu SH, Meng XR, Wang F, Chen WG, Liu D. Porcine oviductal extracellular vesicles facilitate early embryonic development via relief of endoplasmic reticulum stress. Cell Biol Int 2021; 46:300-310. [PMID: 34854517 DOI: 10.1002/cbin.11730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 11/02/2021] [Accepted: 11/28/2021] [Indexed: 11/06/2022]
Abstract
The key to successful in vitro embryo production (IVEP) is to mimic the natural in vivo oviductal microenvironment. Although the chemically defined media in extensive use for the in vitro culture of mammalian embryos is based on the composition of oviductal fluid, the IVEP systems in current use must still bypass the oviduct to produce embryos in vitro. Extracellular vesicles (EVs) in the oviduct are versatile intercellular delivery vehicles for maternal-embryo communication, and a lack of them can be associated with failed early embryonic development under in vitro culture conditions. Herein, we isolated EVs from porcine oviduct fluid and confirmed that oviductal EV supplementation improves the embryonic development of parthenogenetically activated (PA) embryos in terms of blastocyst formation rates and total cell numbers. Our experiments also revealed that a beneficial effect of oviductal EVs on PA embryos was achievable, at least in part, by relieving endoplasmic reticulum stress. These results suggest that the maternal-embryo communication mediated by oviductal EVs benefits early embryonic development. Given the contribution of oviductal EVs to early embryonic development, these findings offer novel insights for the optimization of current IVEP systems.
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Affiliation(s)
- Bo Fu
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, China.,Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture and Rural Affairs, Harbin, China
| | - Hong Ma
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, China.,Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture and Rural Affairs, Harbin, China
| | - Dong-Jie Zhang
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, China.,Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture and Rural Affairs, Harbin, China
| | - Liang Wang
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, China.,Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture and Rural Affairs, Harbin, China
| | - Zhong-Qiu Li
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, China.,Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture and Rural Affairs, Harbin, China
| | - Zhen-Hua Guo
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, China.,Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture and Rural Affairs, Harbin, China
| | - Zi-Guang Liu
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, China.,Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture and Rural Affairs, Harbin, China
| | - Sai-Hui Wu
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, China.,Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture and Rural Affairs, Harbin, China
| | - Xiang-Ren Meng
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, China.,Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture and Rural Affairs, Harbin, China
| | - Fang Wang
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, China.,Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture and Rural Affairs, Harbin, China
| | - Wen-Gui Chen
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - Di Liu
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, China.,Key Laboratory of Combining Farming and Animal Husbandry, Ministry of Agriculture and Rural Affairs, Harbin, China
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13
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Wu JF, Liu Y, Zi XD, Li H, Lu JY, Jing T. Molecular cloning, sequence, and expression patterns of DNA damage induced transcript 3 (DDIT3) gene in female yaks ( Bos grunniens). Anim Biotechnol 2021; 34:280-287. [PMID: 34353209 DOI: 10.1080/10495398.2021.1957686] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Endoplasmic reticulum stress (ERS) plays an important role in regulating the reproductive process of female mammals, mainly involved in follicular atresia and corpus luteum regression. DNA damage induced transcript 3 (DDIT3) is a marker gene of ERS. The objectives of the present study were to clone and analyze the sequence and tissue expression characteristics of DDIT3 gene in female yaks. By reverse transcriptase-polymerase chain reaction (RT-PCR) strategy, we obtained full-length 507-bp DDIT3-cDNA, encoding for 168-aa protein. Yak DDIT3 exhibited highest and least identity with that of bison and horse, respectively. Real-time PCR analyses revealed that the expression level of DDIT3 gene in ovary was higher than that in heart, liver, kidney, spleen, lung, uterus and oviduct (p < 0.05). DDIT3 expression level in ovary and uterus during pregnancy was higher than that in follicular phase, luteal phase and fetus stage. DDIT3 was highly expressed in metaphase II oocytes and granulosa cells than that in germinal vesicle and metaphase I oocytes (p < 0.05), respectively. This is the first molecular characterization and expression patterns of DDIT3 gene in female yaks. These results indicated that the DDIT3 gene possibly plays an important role in regulating ovary function and pregnancy maintenance in yaks.
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Affiliation(s)
- Jian-Fei Wu
- Key Laboratory of Animal Science of State Ethnic Affairs Commission, Southwest Minzu University, Chengdu, PR China
| | - Yu Liu
- Key Laboratory of Animal Science of State Ethnic Affairs Commission, Southwest Minzu University, Chengdu, PR China
| | - Xiang-Dong Zi
- Key Laboratory of Animal Science of State Ethnic Affairs Commission, Southwest Minzu University, Chengdu, PR China
| | - Heng Li
- Key Laboratory of Animal Science of State Ethnic Affairs Commission, Southwest Minzu University, Chengdu, PR China
| | - Jian-Yuan Lu
- College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu, PR China
| | - Tian Jing
- Key Laboratory of Animal Science of State Ethnic Affairs Commission, Southwest Minzu University, Chengdu, PR China
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14
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Dicks N, Gutierrez K, Currin L, de Macedo MP, Glanzner WG, Mondadori RG, Michalak M, Agellon LB, Bordignon V. Tauroursodeoxycholic acid/TGR5 signaling promotes survival and early development of glucose-stressed porcine embryos†. Biol Reprod 2021; 105:76-86. [PMID: 33889948 PMCID: PMC8256098 DOI: 10.1093/biolre/ioab072] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 03/24/2021] [Accepted: 04/12/2021] [Indexed: 01/21/2023] Open
Abstract
Conditions of impaired energy and nutrient homeostasis, such as diabetes and obesity, are associated with infertility. Hyperglycemia increases endoplasmic reticulum stress as well as oxidative stress and reduces embryo development and quality. Oxidative stress also causes deoxyribonucleic acid damage, which impairs embryo quality and development. The natural bile acid tauroursodeoxycholic acid reduces endoplasmic reticulum stress and rescues developmentally incompetent late-cleaving embryos, as well as embryos subjected to nuclear stress, suggesting the endoplasmic reticulum stress response, or unfolded protein response, and the genome damage response are linked. Tauroursodeoxycholic acid acts via the Takeda-G-protein-receptor-5 to alleviate nuclear stress in embryos. To evaluate the role of tauroursodeoxycholic acid/Takeda-G-protein-receptor-5 signaling in embryo unfolded protein response, we used a model of glucose-induced endoplasmic reticulum stress. Embryo development was impaired by direct injection of tauroursodeoxycholic acid into parthenogenetically activated oocytes, whereas it was improved when tauroursodeoxycholic acid was added to the culture medium. Attenuation of the Takeda-G-protein-receptor-5 precluded the positive effect of tauroursodeoxycholic acid supplementation on development of parthenogenetically activated and fertilized embryos cultured under standard conditions and parthenogenetically activated embryos cultured with excess glucose. Moreover, attenuation of tauroursodeoxycholic acid/Takeda-G-protein-receptor-5 signaling induced endoplasmic reticulum stress, oxidative stress and cell survival genes, but decreased expression of pluripotency genes in parthenogenetically activated embryos cultured under excess glucose conditions. These data suggest that Takeda-G-protein-receptor-5 signaling pathways link the unfolded protein response and genome damage response. Furthermore, this study identifies Takeda-G-protein-receptor-5 signaling as a potential target for mitigating fertility issues caused by nutrient excess-associated blastomere stress and embryo death.
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Affiliation(s)
- Naomi Dicks
- Department of Animal Science, McGill University, Quebec, Canada
| | | | - Luke Currin
- Department of Animal Science, McGill University, Quebec, Canada
| | | | | | - Rafael G Mondadori
- Department of Animal Science, McGill University, Quebec, Canada
- ReproPel, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Marek Michalak
- Department of Biochemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Luis B Agellon
- School of Human Nutrition, McGill University, Quebec, Canada
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15
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Kim MJ, Jung BD, Park CK, Cheong HT. Development of Porcine Somatic Cell Nuclear Transfer Embryos Following Treatment Time of Endoplasmic Reticulum Stress Inhibitor. Dev Reprod 2021; 25:43-53. [PMID: 33977174 PMCID: PMC8087258 DOI: 10.12717/dr.2021.25.1.43] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 01/23/2021] [Accepted: 01/30/2021] [Indexed: 11/17/2022]
Abstract
We examine the effect of endoplasmic reticulum (ER) stress inhibitor treatment time on the in vitro development of porcine somatic cell nuclear transfer (SCNT) embryos. Porcine SCNT embryos were classified by four groups following treatment time of ER stress inhibitor, tauroursodeoxycholic acid (TUDCA; 100 μM); 1) non-treatment group (control), 2) treatment during micromanipulation process and for 3 h after fusion (NT+3 h group), 3) treatment only during in vitro culture after fusion (IVC group), and 4) treatment during micromanipulation process and in vitro culture (NT+IVC group). SCNT embryos were cultured for six days to examine the X-box binding protein 1 (Xbp1) splicing levels, the expression levels of ER stress-associated genes, oxidative stress-related genes, and apoptosis-related genes in blastocysts, and in vitro development. There was no significant difference in Xbp1 splicing level among all groups. Reduced expression of some ER stress-associated genes was observed in the treatment groups. The oxidative stress and apoptosis-related genes were significantly lower in all treatment groups than control (p<0.05). Although blastocyst development rates were not different among all groups (17.5% to 21.7%), the average cell number in blastocysts increased significantly in NT+3 h (48.5±2.3) and NT+IVC (47.7±2.4) groups compared to those of control and IVC groups (p<0.05). The result of this study suggests that the treatment of ER stress inhibitor on SCNT embryos from the micromanipulation process can improve the reprogramming efficiency of SCNT embryos by inhibiting the ER and oxidative stresses that may occur early in the SCNT process.
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Affiliation(s)
- Mi-Jeong Kim
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
| | - Bae-Dong Jung
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
| | - Choon-Keun Park
- College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, Korea
| | - Hee-Tae Cheong
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
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16
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Teplitz GM, Shi M, Sirard MA, Lombardo DM. Coculture of porcine luteal cells during in vitro porcine oocyte maturation affects blastocyst gene expression and developmental potential. Theriogenology 2021; 166:124-134. [PMID: 33735666 DOI: 10.1016/j.theriogenology.2021.02.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 01/26/2021] [Accepted: 02/22/2021] [Indexed: 12/22/2022]
Abstract
Oocyte maturation in culture is still the weakest part of in vitro fertilization (IVF) and coculture with somatic cells may be an alternative to improve suboptimal culture conditions, especially in the pig in which maturation takes more than 44 h. In the present study, we investigated the effect of a coculture system of porcine luteal cells (PLC) during in vitro maturation (IVM) on embryo development and gene expression. Cumulus-oocyte complexes were matured in vitro in TCM-199 with human menopausal gonadotrophin (control) and in coculture with PLC. IVF was performed with frozen-thawed boar semen in Tris-buffered medium. Presumptive zygotes were cultured in PZM for 7 days. The coculture with PLC significantly increased blastocysts rates. Gene expression changes were measured with a porcine embryo-specific microarray and confirmed by RT-qPCR. The global transcription pattern of embryos developing after PLC coculture exhibited overall downregulation of gene expression. Following global gene expression pattern analysis, genes associated with lipid metabolism, mitochondrial function, endoplasmic reticulum stress, and apoptosis were found downregulated, and genes associated with cell cycle and proliferation were found upregulated in the PLC coculture. Canonical pathway analysis by Ingenuity Pathway revealed that differential expression transcripts were associated with the sirtuin signaling pathway, oxidative phosphorylation pathway, cytokines and ephrin receptor signaling. To conclude, the coculture system of PLC during IVM has a lasting effect on the embryo until the blastocyst stage, modifying gene expression, with a positive effect on embryo development. Our model could be an alternative to replace the conventional maturation medium with gonadotrophins with higher rates of embryo development, a key issue in porcine in vitro embryo production.
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Affiliation(s)
- G M Teplitz
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 C1425TQB, Buenos Aires, Argentina; Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Instituto de Investigación y Tecnología en Reproducción Animal, Cátedra de Histología y Embriología, Chorroarín 280 C1427CWO, Buenos Aires, Argentina
| | - M Shi
- Departement des Sciences Animales, Centre de Recherche en Reproduction, Développement et Santé Inter-générationnelle (CRDSI), Université Laval, Quebec, Canada. Pavillon Des Services, Local 2732, Université Laval, Quebec G1V 0A6, Canada
| | - M A Sirard
- Departement des Sciences Animales, Centre de Recherche en Reproduction, Développement et Santé Inter-générationnelle (CRDSI), Université Laval, Quebec, Canada. Pavillon Des Services, Local 2732, Université Laval, Quebec G1V 0A6, Canada
| | - D M Lombardo
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 C1425TQB, Buenos Aires, Argentina; Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Instituto de Investigación y Tecnología en Reproducción Animal, Cátedra de Histología y Embriología, Chorroarín 280 C1427CWO, Buenos Aires, Argentina.
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17
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Pioltine EM, Costa CB, Barbosa Latorraca L, Franchi FF, dos Santos PH, Mingoti GZ, de Paula-Lopes FF, Nogueira MFG. Treatment of in vitro-Matured Bovine Oocytes With Tauroursodeoxycholic Acid Modulates the Oxidative Stress Signaling Pathway. Front Cell Dev Biol 2021; 9:623852. [PMID: 33681203 PMCID: PMC7933469 DOI: 10.3389/fcell.2021.623852] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 02/01/2021] [Indexed: 01/24/2023] Open
Abstract
In several species, oocyte and embryo competence are improved by the addition of endoplasmic reticulum (ER) stress inhibitors to in vitro maturation (IVM) medium and/or in vitro culture (IVC) medium. This study aimed to evaluate the effects of three concentrations of tauroursodeoxycholic acid (TUDCA; 50, 200, and 1,000 μM), a chemical chaperone for relieving ER stress, during IVM of bovine cumulus-oocyte complexes (COCs) for 24 h. Treated oocytes were analyzed for nuclear maturation, reactive oxygen species (ROS) production, mitochondrial activity, and abundance of target transcripts. In addition, the number of pronuclei in oocytes was evaluated after 18-20 h of insemination, and the rates of blastocyst and hatched blastocyst formation were evaluated after 7 and 8/9 days of culture, respectively. We further evaluated the transcript abundance of embryonic quality markers. Our findings showed that supplementation of IVM medium with 200 μM of TUDCA decreased ROS production and increased abundance of transcripts related to antioxidant activity in oocytes (CAT, GPX1, and HMOX1) and embryos (GPX1 and PRDX3). Interestingly, high concentration of TUDCA (1,000 μM) was toxic to oocytes, reducing the nuclear maturation rate, decreasing mitochondrial activity, and increasing the abundance of ER stress (HSPA5) and cellular apoptosis (CASP3 and CD40) related transcripts. The results of this study suggest that treatment with 200 μM of TUDCA is associated with a greater resistance to oxidative stress and indirectly with ER stress relief in bovine oocytes.
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Affiliation(s)
- Elisa Mariano Pioltine
- Multi-user Laboratory of Phytomedicines Pharmacology, and Biotechnology (PhitoPharmaTec), Institute of Biosciences, Department of Pharmacology, São Paulo State University, Botucatu, Brazil
| | - Camila Bortoliero Costa
- Multi-user Laboratory of Phytomedicines Pharmacology, and Biotechnology (PhitoPharmaTec), Institute of Biosciences, Department of Pharmacology, São Paulo State University, Botucatu, Brazil
| | | | - Fernanda Fagali Franchi
- Multi-user Laboratory of Phytomedicines Pharmacology, and Biotechnology (PhitoPharmaTec), Institute of Biosciences, Department of Pharmacology, São Paulo State University, Botucatu, Brazil
| | - Priscila Helena dos Santos
- Multi-user Laboratory of Phytomedicines Pharmacology, and Biotechnology (PhitoPharmaTec), Institute of Biosciences, Department of Pharmacology, São Paulo State University, Botucatu, Brazil
| | - Gisele Zoccal Mingoti
- School of Veterinary Medicine, Department of Production and Animal Health, São Paulo State University, Araçatuba, Brazil
| | | | - Marcelo Fábio Gouveia Nogueira
- Multi-user Laboratory of Phytomedicines Pharmacology, and Biotechnology (PhitoPharmaTec), Institute of Biosciences, Department of Pharmacology, São Paulo State University, Botucatu, Brazil
- Laboratory of Embryonic Micromanipulation, School of Sciences and Languages, Department of Biological Sciences, São Paulo State University, Assis, Brazil
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18
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Ridlo MR, Kim EH, Taweechaipaisankul A, Lee BC, Kim GA. Adiponectin Improves In Vitro Development of Cloned Porcine Embryos by Reducing Endoplasmic Reticulum Stress and Apoptosis. Animals (Basel) 2021; 11:ani11020473. [PMID: 33579003 PMCID: PMC7916767 DOI: 10.3390/ani11020473] [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] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 01/31/2021] [Accepted: 02/06/2021] [Indexed: 01/12/2023] Open
Abstract
Simple Summary Successful attenuation of endoplasmic reticulum (ER) stress signaling has a beneficial outcome in in vitro embryonal improvement. We evaluated the effect of adiponectin during in vitro culture in porcine embryos derived from parthenogenetic activation and somatic cell nuclear transfer (SCNT). We found that 15 and 30 μg/mL adiponectin treatment significantly improved cleavage rates, blastocyst formation rates, and total cell number (TCN) of blastocysts derived from parthenogenetic activation and reduced the expression levels of XBP1. In SCNT embryos, the cleavage rate, blastocyst formation rate, and TCN of blastocysts were significantly improved by 15 μg/mL adiponectin treatment compared to the control. In addition, the 15 μg/mL adiponectin treatment reduced the levels of XBP1 expression and ER stress-related genes, increased expression levels of pluripotency-related genes, and decreased apoptosis-related gene expression. Comprehensively, treatment with 15 μg/mL adiponectin enhanced the in vitro developmental capacity of early-stage SCNT porcine embryos by reducing ER stress and apoptosis. Abstract The main factor of embryonic demise is endoplasmic reticulum (ER) stress. Successful attenuation of ER stress results in an improvement in embryo development. We studied the impact of adiponectin in the in vitro culture (IVC) of porcine embryos derived from parthenogenetic activation and somatic cell nuclear transfer (SCNT). The first experiment revealed that 15 and 30 μg/mL adiponectin treatments improved cleavage, blastocyst rates, and total cell number (TCN) of parthenogenetic embryos and reduced the expression of XBP1 compared to the 5 μg/mL adiponectin treatment and control groups (p < 0.05). The second experiment showed that cleavage rate, blastocyst formation rate, and TCN of blastocysts were improved in the 15 μg/mL adiponectin treatment group compared with the control group, with significantly reduced XBP1 expression in ≥4-cell stage SCNT embryos and blastocysts (p < 0.05). Treatment with 15 μg/mL adiponectin significantly improved the expression of XBP1 and reduced the expression of ER stress-related genes (uXBP1, sXBP1, PTPN1, and ATF4), increased the expression levels of pluripotency-related genes (Nanog and SOX2), and decreased apoptosis-related gene expression (Caspase-3). These results suggest that 15 μg/mL adiponectin enhanced the in vitro developmental capacity of early-stage SCNT porcine embryos by reducing ER stress and apoptosis.
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Affiliation(s)
- Muhammad Rosyid Ridlo
- Department of Theriogenology and Biotechnology, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (M.R.R.); (E.H.K.); (A.T.); (B.C.L.)
- Department of Bioresources Technology and Veterinary, Vocational College, Universitas Gadjah Mada, Yogyakarta 5281, Indonesia
| | - Eui Hyun Kim
- Department of Theriogenology and Biotechnology, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (M.R.R.); (E.H.K.); (A.T.); (B.C.L.)
| | - Anukul Taweechaipaisankul
- Department of Theriogenology and Biotechnology, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (M.R.R.); (E.H.K.); (A.T.); (B.C.L.)
| | - Byeong Chun Lee
- Department of Theriogenology and Biotechnology, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (M.R.R.); (E.H.K.); (A.T.); (B.C.L.)
| | - Geon A. Kim
- Department of Biomedical Laboratory Science, School of Medicine, Eulji University, Daejon 34824, Korea
- Correspondence:
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19
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Harada M, Takahashi N, Azhary JM, Kunitomi C, Fujii T, Osuga Y. Endoplasmic reticulum stress: a key regulator of the follicular microenvironment in the ovary. Mol Hum Reprod 2021; 27:gaaa088. [PMID: 33543293 DOI: 10.1093/molehr/gaaa088] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 12/04/2020] [Indexed: 12/17/2022] Open
Abstract
Intra-ovarian local factors regulate the follicular microenvironment in coordination with gonadotrophins, thus playing a crucial role in ovarian physiology as well as pathological states such as polycystic ovary syndrome (PCOS). One recently recognized local factor is endoplasmic reticulum (ER) stress, which involves the accumulation of unfolded or misfolded proteins in the ER related to various physiological and pathological conditions that increase the demand for protein folding or attenuate the protein-folding capacity of the organelle. ER stress results in activation of several signal transduction cascades, collectively termed the unfolded protein response (UPR), which affect a wide variety of cellular functions. Recent studies have revealed diverse roles of ER stress in physiological and pathological conditions in the ovary. In this review, we summarize the most current knowledge of the regulatory roles of ER stress in the ovary, in the context of reproduction. The physiological roles of ER stress and the UPR in the ovary remain largely undetermined. On the contrary, activation of ER stress is known to impair follicular and oocyte health in various pathological conditions; moreover, ER stress also contributes to the pathogenesis of several ovarian diseases, including PCOS. Finally, we discuss the potential of ER stress as a novel therapeutic target. Inhibition of ER stress or UPR activation, by treatment with existing chemical chaperones, lifestyle intervention, or the development of small molecules that target the UPR, represents a promising therapeutic strategy.
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Affiliation(s)
- Miyuki Harada
- Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, Hongo, Bunkyo, Tokyo 113-8655, Japan
| | - Nozomi Takahashi
- Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, Hongo, Bunkyo, Tokyo 113-8655, Japan
| | - Jerilee Mk Azhary
- Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, Hongo, Bunkyo, Tokyo 113-8655, Japan
| | - Chisato Kunitomi
- Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, Hongo, Bunkyo, Tokyo 113-8655, Japan
| | - Tomoyuki Fujii
- Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, Hongo, Bunkyo, Tokyo 113-8655, Japan
| | - Yutaka Osuga
- Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, Hongo, Bunkyo, Tokyo 113-8655, Japan
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20
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Ridlo MR, Kim EH, Kim GA. MicroRNA-210 Regulates Endoplasmic Reticulum Stress and Apoptosis in Porcine Embryos. Animals (Basel) 2021; 11:ani11010221. [PMID: 33477489 PMCID: PMC7831048 DOI: 10.3390/ani11010221] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/22/2020] [Accepted: 01/14/2021] [Indexed: 01/26/2023] Open
Abstract
Simple Summary The purpose of this study was to explore the effect of miR-210 on in vitro embryo development, mRNA expression related endoplasmic reticulum (ER) stress. Treatment with a miR-210-inhibitor significantly improved in vitro embryo development and total blastocyst cell number (TCN). Furthermore, miR-210-inhibitor treatment downregulated ER stress and apoptosis-related gene expression, while simultaneously improving embryo capacity. In contrast, a miR-210-mimic decreased in vitro embryo development, TCN, upregulated ER stress and apoptosis genes, and concomitantly impaired embryo quality. Therefore, we suggest that miR-210 plays an important role in porcine in vitro embryo development. Abstract Endoplasmic reticulum (ER) stress can be triggered during in vitro embryo production and is a major obstacle to embryo survival. MicroRNA (miR)-210 is associated with cellular adaptation to cellular stress and inflammation. An experiment was conducted to understand the effects of miR-210 on in vitro embryo development, ER stress, and apoptosis; to achieve this, miR-210 was microinjected into parthenogenetically activated embryos. Our results revealed that miR-210 inhibition significantly enhanced the cleavage rate, blastocyst formation rate, and total cell number (TCN) of blastocysts, and reduced expression levels of XBP1 (p < 0.05). miR-210 inhibition greatly reduced the expression of ER stress-related genes (uXBP1, sXBP1, ATF4, and PTPN1) and Caspase 3 and increased the levels of NANOG and SOX2 (p < 0.05). A miR-210-mimic significantly decreased the cleavage, blastocyst rate, TCN, and expression levels of XBP1 compared with other groups (p < 0.05). The miR-210-mimic impaired the expression levels of uXBP1, sXBP1, ATF4, PTPN1, and Caspase 3 and decreased the expression of NANOG and SOX2 (p < 0.05). In conclusion, miR-210 plays an essential role in porcine in vitro embryo development. Therefore, we suggest that miR-210 inhibition could alleviate ER stress and reduce apoptosis to support the enhancement of in vitro embryo production.
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Affiliation(s)
- Muhammad Rosyid Ridlo
- Department of Theriogenology and Biotechnology, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (M.R.R.); (E.H.K.)
- Department of Bioresources Technology and Veterinary, Vocational College, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Eui Hyun Kim
- Department of Theriogenology and Biotechnology, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (M.R.R.); (E.H.K.)
| | - Geon A. Kim
- Department of Biomedical Laboratory Science, School of Medicine, Eulji University, Daejon 34824, Korea
- Correspondence:
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21
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Yap KN, Yamada K, Zikeli S, Kiaris H, Hood WR. Evaluating endoplasmic reticulum stress and unfolded protein response through the lens of ecology and evolution. Biol Rev Camb Philos Soc 2020; 96:541-556. [PMID: 33164297 DOI: 10.1111/brv.12667] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 10/13/2020] [Accepted: 10/28/2020] [Indexed: 12/11/2022]
Abstract
Considerable progress has been made in understanding the physiological basis for variation in the life-history patterns of animals, particularly with regard to the roles of oxidative stress and hormonal regulation. However, an underappreciated and understudied area that could play a role in mediating inter- and intraspecific variation of life history is endoplasmic reticulum (ER) stress, and the resulting unfolded protein response (UPRER ). ER stress response and the UPRER maintain proteostasis in cells by reducing the intracellular load of secretory proteins and enhancing protein folding capacity or initiating apoptosis in cells that cannot recover. Proper modulation of the ER stress response and execution of the UPRER allow animals to respond to intracellular and extracellular stressors and adapt to constantly changing environments. ER stress responses are heritable and there is considerable individual variation in UPRER phenotype in animals, suggesting that ER stress and UPRER phenotype can be subjected to natural selection. The variation in UPRER phenotype presumably reflects the way animals respond to ER stress and environmental challenges. Most of what we know about ER stress and the UPRER in animals has either come from biomedical studies using cell culture or from experiments involving conventional laboratory or agriculturally important models that exhibit limited genetic diversity. Furthermore, these studies involve the assessment of experimentally induced qualitative changes in gene expression as opposed to the quantitative variations that occur in naturally existing populations. Almost all of these studies were conducted in controlled settings that are often quite different from the conditions animals experience in nature. Herein, we review studies that investigated ER stress and the UPRER in relation to key life-history traits including growth and development, reproduction, bioenergetics and physical performance, and ageing and senescence. We then ask if these studies can inform us about the role of ER stress and the UPRER in mediating the aforementioned life-history traits in free-living animals. We propose that there is a need to conduct experiments pertaining to ER stress and the UPRER in ecologically relevant settings, to characterize variation in ER stress and the UPRER in free-living animals, and to relate the observed variation to key life-history traits. We urge others to integrate multiple physiological systems and investigate how interactions between ER stress and oxidative stress shape life-history trade-offs in free-living animals.
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Affiliation(s)
- Kang Nian Yap
- Department of Biological Sciences, Auburn University, 101 Rouse Life Science Building, Auburn, AL, 36849, U.S.A
| | - KayLene Yamada
- Department of Biological Sciences, Auburn University, 101 Rouse Life Science Building, Auburn, AL, 36849, U.S.A
| | - Shelby Zikeli
- Department of Biological Sciences, Auburn University, 101 Rouse Life Science Building, Auburn, AL, 36849, U.S.A
| | - Hippokratis Kiaris
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, and Peromyscus Genetic Stock Center, University of South Carolina, Columbia, SC, 29208, U.S.A
| | - Wendy R Hood
- Department of Biological Sciences, Auburn University, 101 Rouse Life Science Building, Auburn, AL, 36849, U.S.A
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22
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Hegde S, Poojary KK, Rasquinha R, Crasta DN, Gopalan D, Mutalik S, Siddiqui S, Adiga SK, Kalthur G. Epigallocatechin-3-gallate (EGCG) protects the oocytes from methyl parathion-induced cytoplasmic deformities by suppressing oxidative and endoplasmic reticulum stress. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2020; 167:104588. [PMID: 32527428 DOI: 10.1016/j.pestbp.2020.104588] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 03/21/2020] [Accepted: 04/17/2020] [Indexed: 06/11/2023]
Abstract
Methyl parathion (MP) is a commonly used organophosphorus insecticide in commercial farming. It is well known that MP exposure can affect the function of nervous, respiratory, cardiovascular and reproductive systems. In our previous report we have demonstrated that MP exposure results in poor oocyte maturation and defective embryo development which is mainly mediated through oxidative stress. The present investigation was designed to explore whether using a potent free radical scavenger like Epigallocatechin-3-gallate (EGCG) can help in reducing the detrimental effects of MP on the oocytes. For the study, germinal vesicle (GV) stage oocytes collected from the ovaries of adult Swiss albino mice were subjected to in vitro maturation (IVM) in the presence or absence of MP (100 μg/mL) and/or EGCG (0.25 μM). MP significantly reduced the nuclear maturation rate, and resulted in poor cytoplasmic organization which was evident from the altered distribution pattern of mitochondria, endoplasmic reticulum and abnormal spindle organization. These changes were associated with significant elevation in oxidative stress and expression of ER stress markers such as 78 kDa Glucose regulated protein (GRP78) as well as X-box binding protein-1 (XBP1) in the oocytes. Further, the oocytes exposed to MP had lower activation rate and developmental potential. Supplementation of EGCG during IVM not only improved the nuclear maturation rate but also reduced the cytoplasmic abnormalities. These beneficial effects appear to be due to mitigation of oxidative and ER stress in oocytes. In conclusion, results of our study indicate that EGCG can help in alleviating MP-induced oocyte abnormalities.
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Affiliation(s)
- Shweta Hegde
- Department of Clinical Embryology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Keerthana Karunakar Poojary
- Department of Clinical Embryology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Rhea Rasquinha
- Department of Clinical Embryology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Daphne Norma Crasta
- Department of Clinical Embryology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Divya Gopalan
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Srinivas Mutalik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Sazada Siddiqui
- Department of Biology, College of Science, King Khalid University, Abha 61413, Saudi Arabia
| | - Satish Kumar Adiga
- Department of Clinical Embryology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Guruprasad Kalthur
- Department of Clinical Embryology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India.
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23
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Moura MT, Paula-Lopes FF. Thermoprotective molecules to improve oocyte competence under elevated temperature. Theriogenology 2020; 156:262-271. [PMID: 32784066 DOI: 10.1016/j.theriogenology.2020.06.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 06/12/2020] [Accepted: 06/13/2020] [Indexed: 02/06/2023]
Abstract
Heat stress is an environmental factor that challenges livestock by disturbing animal homeostasis. Despite the broad detrimental effects of heat stress on reproductive function, the germline and the early preimplantation embryo are particularly prone. There is extensive evidence that elevated temperature reduces oocyte developmental competence through a series of cellular and molecular damages. Further research revealed that the oocyte respond to stress by activating cellular mechanisms such as heat shock response, unfolded protein response and autophagy to improve survival under heat shock. Such knowledge paved the way for the identification of thermoprotective molecules that alleviate heat-induced oocyte oxidative stress, organelle damage, and apoptosis. Therefore, this review depicts the deleterious effects of heat shock on oocyte developmental competence, heat-induced cellular and molecular changes, outlines pro-survival cellular mechanisms and explores thermoprotective molecules to improve oocyte competence.
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Affiliation(s)
- Marcelo T Moura
- Department of Biological Sciences, Federal University of São Paulo - UNIFESP, Diadema, SP, Brazil
| | - Fabíola F Paula-Lopes
- Department of Biological Sciences, Federal University of São Paulo - UNIFESP, Diadema, SP, Brazil.
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24
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Takehara I, Igarashi H, Kawagoe J, Matsuo K, Takahashi K, Nishi M, Nagase S. Impact of endoplasmic reticulum stress on oocyte aging mechanisms. Mol Hum Reprod 2020; 26:567-575. [DOI: 10.1093/molehr/gaaa040] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 05/06/2020] [Indexed: 12/13/2022] Open
Abstract
Abstract
Endoplasmic reticulum (ER) stress is associated with several aging-related diseases; however, the mechanism underlying age-related deterioration of oocyte quality is unclear. Here, we used post-ovulatory, in vivo aged mouse oocytes as a model. Super-ovulated oocytes harvested from the oviduct at 14 h and 20 h post-hCG injection were designated as ‘fresh’ and ‘aged’, respectively. Embryo development following IVF was compared between fresh, aged and ER stress-induced oocytes. Expression of the ER stress marker GRP78 was examined at each stage. To evaluate the effect of salubrinal, an ER stress suppressor, on embryo development following IVF, expression levels of GRP78 and phospho-eukaryotic initiation factor 2 alpha were compared between aged and salubrinal-treated aged oocytes. Embryo transfer of salubrinal-treated aged oocytes was performed to examine the safety of salubrinal. Similar to aged oocytes, ER stress-induced oocytes showed lower fertilization rates and poor embryo development. Following IVF, expression of GRP78 decreased with embryo development. GRP78 expression was significantly higher in aged oocytes than in fresh oocytes. Salubrinal lowered GRP78 levels and improved embryo development. No adverse effect of salubrinal treatment was found on the birth weight of pups or on organogenesis in mice. The limitation of this study was that protein kinase-like ER kinase was the only ER stress pathway examined; the role of IRE1 and ATF6 pathways was not considered. Nevertheless, salubrinal can significantly improve embryo development in in vivo aged oocytes undergoing ER stress. Hence, regulation of ER stress might represent a promising therapeutic strategy to overcome poor oocyte quality.
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Affiliation(s)
- Isao Takehara
- Department of Obstetrics and Gynecology, Yamagata University Faculty of Medicine, Yamagata 990-9585, Japan
| | - Hideki Igarashi
- Department of Obstetrics and Gynecology, Yamagata University Faculty of Medicine, Yamagata 990-9585, Japan
- Kyono ART Clinic Sendai, 1-1-1 3F, Honcho, Aoba-ku, Sendai, Miyagi 980-0014, Japan
| | - Jun Kawagoe
- Department of Obstetrics and Gynecology, Yamagata University Faculty of Medicine, Yamagata 990-9585, Japan
| | - Koki Matsuo
- Department of Obstetrics and Gynecology, Yamagata University Faculty of Medicine, Yamagata 990-9585, Japan
| | - Kyoko Takahashi
- Department of Obstetrics and Gynecology, Yamagata University Faculty of Medicine, Yamagata 990-9585, Japan
| | - Michi Nishi
- Department of Obstetrics and Gynecology, Yamagata University Faculty of Medicine, Yamagata 990-9585, Japan
| | - Satoru Nagase
- Department of Obstetrics and Gynecology, Yamagata University Faculty of Medicine, Yamagata 990-9585, Japan
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25
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Park HB, Park YR, Kim MJ, Jung BD, Park CK, Cheong HT. Endoplasmic Reticulum (ER) Stress Inhibitor or Antioxidant Treatments during Micromanipulation Can Inhibit Both ER and Oxidative Stresses in Porcine SCNT Embryos. Dev Reprod 2020; 24:31-41. [PMID: 32411916 PMCID: PMC7201064 DOI: 10.12717/dr.2020.24.1.31] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 01/17/2020] [Accepted: 02/01/2020] [Indexed: 12/21/2022]
Abstract
We investigated the effects of endoplasmic reticulum (ER) stress inhibitor and
antioxidant treatments during the micromanipulation of somatic cell nuclear
transfer (SCNT) on in vitro development of SCNT embryos.
Tauroursodeoxycholic acid (TUDCA), an ER stress inhibitor and vitamin C (Vit.
C), an antioxidant, were treated by alone or in combination, then, the level of
X-box binding protein 1 (Xbp1) splicing and the expressions of
ER stress-associated genes, oxidative stress-related genes, and apoptotic genes
were confirmed in the 1-cell and blastocyst stages. In the 1-cell stage, the
levels of Xbp1 splicing were significantly decreased in TUDCA
and Vit. C treatment groups compared to the control
(p<0.05). In addition, the expression levels of most ER
stress-associated genes and oxidative stress-related genes were significantly
lower in all treatment groups than the control (p<0.05),
and the transcript levels of apoptotic genes were also significantly lower in
all treatment groups than the control (p<0.05). In the
blastocyst stage, decreased expression of ER stress-, oxidative stress-, and
apoptosis-related genes were observed only in some treatments. However, the
blastocyst formation rates in TUDCA and Vit. C treatment groups (24.8%
and 22.0%, respectively) and mean blastocyst cell number in all treatment
groups (59.7±4.3 to 63.5±3.3) were significantly higher
(p<0.05) than those of control. The results showed
that the TUDCA or Vit. C treatment during micromanipulation inhibited both ER
and oxidative stresses in the early stage of SCNT embryos, thereby reducing cell
damage and promoting in vitro development.
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Affiliation(s)
- Hye-Bin Park
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
| | - Yeo-Reum Park
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
| | - Mi-Jeong Kim
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
| | - Bae-Dong Jung
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
| | - Choon-Keun Park
- College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, Korea
| | - Hee-Tae Cheong
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
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26
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Jeong PS, Yoon SB, Lee MH, Son HC, Lee HY, Lee S, Koo BS, Jeong KJ, Lee JH, Jin YB, Song BS, Kim JS, Kim SU, Koo DB, Sim BW. Embryo aggregation regulates in vitro stress conditions to promote developmental competence in pigs. PeerJ 2019; 7:e8143. [PMID: 31844571 PMCID: PMC6913270 DOI: 10.7717/peerj.8143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 11/01/2019] [Indexed: 11/20/2022] Open
Abstract
Embryo aggregation is a useful method to produce blastocysts with high developmental competence to generate more offspring in various mammals, but the underlying mechanism(s) regarding the beneficial effects are largely unknown. In this study, we investigated the effects of embryo aggregation using 4-cell stage embryos in in vitro developmental competence and the relationship of stress conditions in porcine early embryogenesis. We conducted aggregation using the well of the well system and confirmed that aggregation using two or three embryos was useful for obtaining blastocysts. Aggregated embryos significantly improved developmental competence, including blastocyst formation rate, blastomere number, ICM/TE ratio, and cellular survival rate, compared to non-aggregated embryos. Investigation into the relationship between embryo aggregation and stress conditions revealed that mitochondrial function increased, and oxidative and endoplasmic reticulum (ER)-stress decreased compared to 1X (non-aggregated embryos) blastocysts. In addition, 3X (three-embryo aggregated) blastocysts increased the expression of pluripotency, anti-apoptosis, and implantation related genes, and decreased expression of pro-apoptosis related genes. Therefore, these findings indicate that embryo aggregation regulates in vitro stress conditions to increase developmental competence and contributes to the in vitro production of high-quality embryos and the large-scale production of transgenic and chimeric pigs.
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Affiliation(s)
- Pil-Soo Jeong
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea.,National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea.,Department of Biotechnology, College of Engineering, Daegu University, Gyeongsan, Republic of Korea
| | - Seung-Bin Yoon
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea.,National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea.,Primate Resource Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Mun-Hyeong Lee
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea.,Department of Biotechnology, College of Engineering, Daegu University, Gyeongsan, Republic of Korea
| | - Hee-Chang Son
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea.,National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
| | - Hwal-Yong Lee
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
| | - Sanghoon Lee
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
| | - Bon-Sang Koo
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
| | - Kang-Jin Jeong
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
| | - Jong-Hee Lee
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
| | - Yeung Bae Jin
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
| | - Bong-Seok Song
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea.,National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea.,Department of Functional Genomics, University of Science and Technology, Daejeon, Republic of Korea
| | - Ji-Su Kim
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea.,National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea.,Primate Resource Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Sun-Uk Kim
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea.,National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea.,Department of Functional Genomics, University of Science and Technology, Daejeon, Republic of Korea
| | - Deog-Bon Koo
- Department of Biotechnology, College of Engineering, Daegu University, Gyeongsan, Republic of Korea
| | - Bo-Woong Sim
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea.,National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
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27
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Dicks N, Gutierrez K, Currin L, Priotto de Macedo M, Glanzner W, Michalak M, Agellon LB, Bordignon V. Tauroursodeoxycholic acid acts via TGR5 receptor to facilitate DNA damage repair and improve early porcine embryo development. Mol Reprod Dev 2019; 87:161-173. [PMID: 31793725 DOI: 10.1002/mrd.23305] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 11/22/2019] [Indexed: 01/23/2023]
Abstract
DNA damage associated with assisted reproductive technologies is an important factor affecting gamete fertility and embryo development. Activation of the TGR5 receptor by tauroursodeoxycholic acid (TUDCA) has been shown to reduce endoplasmic reticulum (ER) stress in embryos; however, its effect on genome damage responses (GDR) activation to facilitate DNA damage repair has not been examined. This study aimed to investigate the effect of TUDCA on DNA damage repair and embryo development. In a porcine model of ultraviolet light (UV)-induced nuclear stress, TUDCA reduced DNA damage and ER stress in developing embryos, as measured by γH2AX and glucose-regulated protein 78 immunofluorescence, respectively. TUDCA was equally able to rescue early embryo development. No difference in total cell number, DNA damage, or percentage of apoptotic cells, measured by cleaved caspase 3 immunofluorescence, was noted in embryos that reached the blastocyst stage. Interestingly, Dicer-substrate short interfering RNA-mediated disruption of TGR5 signaling abrogated the beneficial effects of TUDCA on UV-treated embryos. Quantitative PCR analysis revealed activation of the GDR, through increased messenger RNA abundance of DNAPK, 53BP1, and DNA ligase IV, as well as the ER stress response, through increased spliced XBP1 and X-linked inhibitor of apoptosis. Results from this study demonstrated that TUDCA activates TGR5-mediated signaling to reduce DNA damage and improve embryo development after UV exposure.
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Affiliation(s)
- Naomi Dicks
- Department of Animal Science, McGill University, Ste-Anne-de-Bellevue, Quebec, Canada
| | - Karina Gutierrez
- Department of Animal Science, McGill University, Ste-Anne-de-Bellevue, Quebec, Canada
| | - Luke Currin
- Department of Animal Science, McGill University, Ste-Anne-de-Bellevue, Quebec, Canada
| | | | - Werner Glanzner
- Department of Animal Science, McGill University, Ste-Anne-de-Bellevue, Quebec, Canada
| | - Marek Michalak
- Department of Biochemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Luis B Agellon
- School of Human Nutrition, McGill University, Ste-Anne-de-Bellevue, Quebec, Canada
| | - Vilceu Bordignon
- Department of Animal Science, McGill University, Ste-Anne-de-Bellevue, Quebec, Canada
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Nagy RA, Hollema H, Andrei D, Jurdzinski A, Kuipers F, Hoek A, Tietge UJ. The Origin of Follicular Bile Acids in the Human Ovary. THE AMERICAN JOURNAL OF PATHOLOGY 2019; 189:2036-2045. [DOI: 10.1016/j.ajpath.2019.06.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 05/22/2019] [Accepted: 06/10/2019] [Indexed: 01/31/2023]
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Role of endoplasmic reticulum stress on developmental competency and cryo-tolerance in bovine embryos. Theriogenology 2019; 142:131-137. [PMID: 31593880 DOI: 10.1016/j.theriogenology.2019.09.042] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 08/19/2019] [Accepted: 09/26/2019] [Indexed: 12/26/2022]
Abstract
Endoplasmic reticulum (ER) stress, a dysfunction in protein folding capacity of the ER, is involved in many physiological responses including mammalian reproductive systems. Studies have shown that ER stress interferes with the developmental process of in vitro oocyte maturation and embryo development; however, little is known about its effects on bovine preimplantation embryonic development. In this study, we examined the effects of ER stress during IVC on developmental competency and cryo-tolerance in bovine embryos. IVF-derived zygotes were cultured in CR1aa medium supplemented with tauroursodeoxycholic acid (TUDCA) and/or tunicamycin (TM), which are ER stress-inhibitory and stress-inducing agents, respectively, for 8 days. TM treatment decreased the blastocyst developmental rate and increased the percentage of apoptotic cells compared to that in the control group (10.2 ± 2.3% vs. 39.75 ± 1.3% and 17.8 ± 1.2% vs. 3.6 ± 1.1%, respectively; P < 0.01). However, the blastocyst developmental rate was increased and the percentage of apoptotic cells was decreased by addition of TUDCA in IVC medium compared to that in the control group (50.9 ± 0.9% vs. 39.75 ± 1.3% and 1.13 ± 1.0% vs. 3.6 ± 1.1%, respectively; P < 0.01). Importantly, in the group treated with TM plus TUDCA, the developmental rate and the percentage of apoptotic cells in blastocysts were similar to that in the control group, indicating that TUDCA ameliorates the adverse effects of TM alone on embryo development. In addition, TUDCA treatment significantly reduced the reactive oxygen species, expression of ER stress (GRP78, ATF4, ATF6, IER1, and sXBP1) and pro-apoptotic (CHOP and BAX) genes, while it increased anti-apoptotic BCL2 gene expression and glutathione levels. Moreover, TUDCA improved blastocyst cryo-tolerance as marked by a significantly increased hatching rate and decreased the number of apoptotic cells recorded at 48 h after a post-warming. Therefore, in concordance with a previous report in mice or pig, we showed that TUDCA supplementation during IVC increases the developmental competency of bovine in vitro-derived embryos. Additionally, we found that the presence of TUDCA in IVC medium improves the cryo-tolerance of bovine embryos. These results suggest that modulation of ER stress during IVC contributes to the production of high-quality bovine embryos in terms of cryo-tolerance.
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Crane AT, Aravalli RN, Asakura A, Grande AW, Krishna VD, Carlson DF, Cheeran MCJ, Danczyk G, Dutton JR, Hackett PB, Hu WS, Li L, Lu WC, Miller ZD, O'Brien TD, Panoskaltsis-Mortari A, Parr AM, Pearce C, Ruiz-Estevez M, Shiao M, Sipe CJ, Toman NG, Voth J, Xie H, Steer CJ, Low WC. Interspecies Organogenesis for Human Transplantation. Cell Transplant 2019; 28:1091-1105. [PMID: 31426664 PMCID: PMC6767879 DOI: 10.1177/0963689719845351] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Blastocyst complementation combined with gene editing is an emerging approach in the
field of regenerative medicine that could potentially solve the worldwide problem of organ
shortages for transplantation. In theory, blastocyst complementation can generate fully
functional human organs or tissues, grown within genetically engineered livestock animals.
Targeted deletion of a specific gene(s) using gene editing to cause deficiencies in organ
development can open a niche for human stem cells to occupy, thus generating human
tissues. Within this review, we will focus on the pancreas, liver, heart, kidney, lung,
and skeletal muscle, as well as cells of the immune and nervous systems. Within each of
these organ systems, we identify and discuss (i) the common causes of organ failure; (ii)
the current state of regenerative therapies; and (iii) the candidate genes to knockout and
enable specific exogenous organ development via the use of blastocyst complementation. We
also highlight some of the current barriers limiting the success of blastocyst
complementation.
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Affiliation(s)
- Andrew T Crane
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA
| | - Rajagopal N Aravalli
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, USA
| | - Atsushi Asakura
- Stem Cell Institute, University of Minnesota, Minneapolis, USA.,Department of Neurology, University of Minnesota, Minneapolis, USA
| | - Andrew W Grande
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA
| | | | | | - Maxim C-J Cheeran
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul, USA
| | - Georgette Danczyk
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA
| | - James R Dutton
- Stem Cell Institute, University of Minnesota, Minneapolis, USA.,Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, USA
| | - Perry B Hackett
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, USA
| | - Wei-Shou Hu
- Department of Chemical Engineering and Material Science, University of Minnesota, Minneapolis, USA
| | - Ling Li
- Department of Experimental and Clinical Pharmacology, University of Minnesota, Minneapolis, USA
| | - Wei-Cheng Lu
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA
| | - Zachary D Miller
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA
| | - Timothy D O'Brien
- Stem Cell Institute, University of Minnesota, Minneapolis, USA.,Department of Veterinary Population Medicine, University of Minnesota, St. Paul, USA
| | | | - Ann M Parr
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA.,Stem Cell Institute, University of Minnesota, Minneapolis, USA
| | - Clairice Pearce
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA
| | | | - Maple Shiao
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA
| | | | - Nikolas G Toman
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA
| | - Joseph Voth
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA
| | - Hui Xie
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA
| | - Clifford J Steer
- Stem Cell Institute, University of Minnesota, Minneapolis, USA.,Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, USA.,Department of Medicine, University of Minnesota, Minneapolis, USA
| | - Walter C Low
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA.,Stem Cell Institute, University of Minnesota, Minneapolis, USA
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Balakrishnan B, Siddiqi A, Mella J, Lupo A, Li E, Hollien J, Johnson J, Lai K. Salubrinal enhances eIF2α phosphorylation and improves fertility in a mouse model of Classic Galactosemia. Biochim Biophys Acta Mol Basis Dis 2019; 1865:165516. [PMID: 31362041 DOI: 10.1016/j.bbadis.2019.07.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 07/15/2019] [Accepted: 07/23/2019] [Indexed: 12/12/2022]
Abstract
Loss of galactose-1 phosphate uridylyltransferase (GALT) activity in humans results in Classic Galactosemia, and the GalT-deficient (GalT-/-) mouse mimics the patient condition. GalT-/- ovaries display elevated endoplasmic reticulum (ER) stress marker, BiP, and downregulated canonical phosphatidylinositol 3-kinase (Pi3k)/protein kinase B (Akt) growth/pro-survival signaling. Numbers of primordial follicles are reduced in the mutants, recapitulating the accelerated ovarian aging seen in human patients. We previously found that oral administration of the compound Salubrinal (an eIF2α phosphatase inhibitor), resulted in reduction of ovarian BiP expression, rescued Pi3k/Akt signaling, and a doubling of primordial follicles in GalT-/- adults. Here, we further characterized galactosemic stress in GalT-/- mice versus wild-type (WT) controls, and examined whether Salubrinal treatment improved broader reproductive parameters. We assessed the expression levels of factors of the unfolded protein response (UPR), and found that BiP, phospho-Perk, and phospho-eIF2α were all elevated in GalT-/- ovaries. However, neither IKK activation (NFκB pathway) nor alternative Xbp1 splicing downstream of ER membrane protein Ire1α activation was induced, suggesting an Xbp1-independent UPR in galactosemic stress. Moreover, Salubrinal treatment significantly increased the number of ovulated eggs in mutant animals after gonadotrophic superovulation. Salubrinal treatment also normalized estrus cycle stage lengths and resulted in significantly larger litter sizes than vehicle-treated mutants. Overall, we show that Salubrinal protects against galactosemia-induced primordial follicle loss in a fashion that includes suppressing the de-phosphorylation of eIF2α, and that intervention in this way significantly improves and extends ovarian function, fertility, and fecundity.
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Affiliation(s)
- B Balakrishnan
- Division of Medical Genetics, Department of Pediatrics, University of Utah School of Medicine, United States
| | - A Siddiqi
- Department of Pathology and Laboratory Medicine, University of Florida College of Medicine, United States
| | - J Mella
- School of Biological Sciences, University of Utah College of Science, United States
| | - A Lupo
- Division of Medical Genetics, Department of Pediatrics, University of Utah School of Medicine, United States
| | - E Li
- Division of Medical Genetics, Department of Pediatrics, University of Utah School of Medicine, United States
| | - J Hollien
- School of Biological Sciences, University of Utah College of Science, United States
| | - J Johnson
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of Colorado, United States.
| | - K Lai
- Division of Medical Genetics, Department of Pediatrics, University of Utah School of Medicine, United States.
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Montani DA, Braga DPDAF, Borges E, Camargo M, Cordeiro FB, Pilau EJ, Gozzo FC, Fraietta R, Lo Turco EG. Understanding mechanisms of oocyte development by follicular fluid lipidomics. J Assist Reprod Genet 2019; 36:1003-1011. [PMID: 31011990 DOI: 10.1007/s10815-019-01428-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 02/22/2019] [Indexed: 12/22/2022] Open
Abstract
PURPOSE The present study aimed to provide a non-invasive approach to studying mechanisms responsible for oocyte development. METHODS To this end, follicular fluid (FF) from 62 patients undergoing in vitro fertilization (IVF) cycles was split into two groups depending on the pregnancy outcome: pregnant (n = 28) and non-pregnant (n = 34) groups. Data were acquired by the MALDI-TOF mass spectrometry. Principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA) were applied to the data set. A ROC curve, to predict success rate, was constructed, and the lipids were attributed. RESULTS Six ions were differentially represented in FF of pregnant and non-pregnant patients, with an area under the curve of 0.962. Phosphatidic acid, phosphatidylglycerol, and triacylglycerol were hyper-represented in the pregnant group, while glucosylceramide was hyper-represented in the non-pregnant group. Enriched functions related to these lipids are steroidogenesis, cellular response, signal transduction, cell cycle, and activation of protein kinase C for the pregnant group and apoptosis inhibition for the non-pregnant group. CONCLUSION Human FF fingerprinting can both improve the understanding concerning mechanisms responsible for oocyte development and its effect on embryo implantation potential and assist in the management of IVF cycles.
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Affiliation(s)
- Daniela Antunes Montani
- Department of Surgery, Division of Urology, Human Reproduction Section, Sao Paulo Federal University, Rua Embau, 231, CEP: 04039-060, Sao Paulo, SP, Brazil
| | - Daniela Paes de Almeida Ferreira Braga
- Department of Surgery, Division of Urology, Human Reproduction Section, Sao Paulo Federal University, Rua Embau, 231, CEP: 04039-060, Sao Paulo, SP, Brazil. .,Fertility Medical Group, Av. Brigadeiro Luiz Antônio, 4545, CEP: 04511-010, Sao Paulo, SP, Brazil.
| | - Edson Borges
- Fertility Medical Group, Av. Brigadeiro Luiz Antônio, 4545, CEP: 04511-010, Sao Paulo, SP, Brazil
| | - Mariana Camargo
- Department of Surgery, Division of Urology, Human Reproduction Section, Sao Paulo Federal University, Rua Embau, 231, CEP: 04039-060, Sao Paulo, SP, Brazil
| | - Fernanda Bertuccez Cordeiro
- Department of Surgery, Division of Urology, Human Reproduction Section, Sao Paulo Federal University, Rua Embau, 231, CEP: 04039-060, Sao Paulo, SP, Brazil.,Laboratorio para Investigaciones Biomédicas, Escuela Superior Politécnica del Litoral, ESPOL, Km. 30.5 Via Perimetral, CEP: 09-01-5863, Guayaquil, Ecuador
| | - Eduardo Jorge Pilau
- Department of Chemistry, Maringa State University, Avenida Colombo, 5790, CEP: 87020-900, Maringá, PR, Brazil
| | - Fábio Cesar Gozzo
- Institute of Chemistry, University of Campinas, R. Josué de Castro, 126, CEP: 13083-861, Campinas, SP, Brazil
| | - Renato Fraietta
- Department of Surgery, Division of Urology, Human Reproduction Section, Sao Paulo Federal University, Rua Embau, 231, CEP: 04039-060, Sao Paulo, SP, Brazil
| | - Edson Guimarães Lo Turco
- Department of Surgery, Division of Urology, Human Reproduction Section, Sao Paulo Federal University, Rua Embau, 231, CEP: 04039-060, Sao Paulo, SP, Brazil
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Park YR, Park HB, Kim MJ, Jung BD, Lee S, Park CK, Cheong HT. Effects of Endoplasmic Reticulum Stress Inhibitor Treatment during the Micromanipulation of Somatic Cell Nuclear Transfer in Porcine Oocytes. Dev Reprod 2019; 23:43-54. [PMID: 31049471 PMCID: PMC6487319 DOI: 10.12717/dr.2019.23.1.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 02/26/2019] [Accepted: 03/09/2019] [Indexed: 12/31/2022]
Abstract
We examined the effects of endoplasmic reticulum (ER) stress inhibitor treatment
during the micromanipulation of porcine somatic cell nuclear transfer (SCNT) on
the in vitro development of SCNT embryos. ER stress inhibitors
such as salubrinal (200 nM) and tauroursodeoxycholic acid (TUDCA; 100 μM)
were added to the micromanipulation medium and holding medium. The expression of
X-box binding protein 1 (Xbp1), ER-stress-associated genes, and
apoptotic genes in SCNT embryos was confirmed at the one-cell and blastocyst
stages. Levels of Xbp1 splicing and expression of
ER-stress-associated genes in SCNT embryos at the one-cell stage decreased
significantly with TUDCA treatment (p<0.05). The
expression of ER-stress-associated genes also decreased slightly with the
addition of both salubrinal and TUDCA (Sal+TUD). The expression levels of
caspase-3 and Bcl2-associated Xprotein
(Bax) mRNA were also significantly lower in the TUDCA and
Sal+TUD treatments (p<0.05). At the blastocyst stage,
there were no differences in levels of Xbp1 splicing, and transcription of
ER-stress-associated genes and apoptosis genes between control and treatment
groups. However, the blastocyst formation rate (20.2%) and mean blastocyst cell
number (63.0±7.2) were significantly higher
(p<0.05) for embryos in the TUDCA treatment compared
with those for control (12.6% and 41.7±3.1, respectively). These results
indicate that the addition of ER-stress inhibitors, especially TUDCA, during
micromanipulation can inhibit cellular damage and enhance in
vitro development of SCNT embryos by reducing stress levels in the
ER.
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Affiliation(s)
- Yeo-Reum Park
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
| | - Hye-Bin Park
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
| | - Mi-Jeong Kim
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
| | - Bae-Dong Jung
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
| | - Seunghyung Lee
- College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, Korea
| | - Choon-Keun Park
- College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, Korea
| | - Hee-Tae Cheong
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
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34
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Endoplasmic Reticulum (ER) Stress and Unfolded Protein Response (UPR) in Mammalian Oocyte Maturation and Preimplantation Embryo Development. Int J Mol Sci 2019; 20:ijms20020409. [PMID: 30669355 PMCID: PMC6359168 DOI: 10.3390/ijms20020409] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/03/2019] [Accepted: 01/09/2019] [Indexed: 12/11/2022] Open
Abstract
Mammalian oocytes and early embryos derived from in vitro production are highly susceptible to a variety of cellular stresses. During oocyte maturation and preimplantation embryo development, functional proteins must be folded properly in the endoplasmic reticulum (ER) to maintain oocyte and embryo development. However, some adverse factors negatively impact ER functions and protein synthesis, resulting in the activation of ER stress and unfolded protein response (UPR) signaling pathways. ER stress and UPR signaling have been identified in mammalian oocytes and embryos produced in vitro, suggesting that modulation of ER stress and UPR signaling play very important roles in oocyte maturation and the development of preimplantation embryos. In this review, we briefly describe the current state of knowledge regarding ER stress, UPR signaling pathways, and their roles and mechanisms in mammalian (excluding human) oocyte maturation and preimplantation embryo development.
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Park HB, Kim MJ, Jung BD, Lee S, Park CK, Yang BK, Cheong HT. Effect of Endoplasmic Reticulum (ER) Stress Inhibitor Treatment during Parthenogenetic Activation on the Apoptosis and In Vitro Development of Parthenogenetic Porcine Embryos. Dev Reprod 2018; 22:235-244. [PMID: 30324160 PMCID: PMC6182227 DOI: 10.12717/dr.2018.22.3.235] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 08/07/2018] [Accepted: 08/31/2018] [Indexed: 11/17/2022]
Abstract
We investigate the effect of endoplasmic reticulum (ER) stress inhibitor
treatment during parthenogenetic activation of oocytes on the ER stress
generation, apoptosis, and in vitro development of
parthenogenetic porcine embryos. Porcine in vitro matured
oocytes were activated by 1) electric stimulus (E) or 2) E+10 μM
Ca-ionophore (A23187) treatment (EC). Oocytes were then treated by ER stress
inhibitors such as salubrinal (200 nM) and tauroursodeoxychloic acid (TUDCA, 100
μM) for 3 h prior to in vitro culture. Parthenogenetic
embryos were sampled to analyze ER stress and apoptosis at the 1-cell and
blastocyst stages. The x-box binding protein 1 (Xbp1) mRNA and ER
stress-associated genes were analyzed by RT-PCR or RT-qPCR. Apoptotic gene
expression was analyzed by RT-PCR. At the 1-cell stage, although no difference
was observed in Xbp1 splicing among treatments, BiP transcription level in the E
group was significantly reduced by salubrinal treatment, and GRP94 and ATF4
transcription levels in EC group were significantly reduced by all treatments
(p<0.05) compared to control. In the EC group, both
apoptotic genes were reduced by ER stress inhibitor treatments compared to
control (p<0.05) except Caspase-3 gene by TUDCA
treatment. These results suggest that the treatment of ER stress inhibitor
during parthenogenetic activation can reduce ER stress, and thereby reduce
apoptosis and promote in vitro development of porcine
parthenogenetic embryos.
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Affiliation(s)
- Hye-Bin Park
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
| | - Mi-Jeong Kim
- College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, Korea
| | - Bae-Dong Jung
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
| | - Seunghyung Lee
- College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, Korea
| | - Choon-Keun Park
- College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, Korea
| | - Boo-Keun Yang
- College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, Korea
| | - Hee-Tae Cheong
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
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36
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Barrera N, dos Santos Neto PC, Cuadro F, Bosolasco D, Mulet AP, Crispo M, Menchaca A. Impact of delipidated estrous sheep serum supplementation on in vitro maturation, cryotolerance and endoplasmic reticulum stress gene expression of sheep oocytes. PLoS One 2018; 13:e0198742. [PMID: 29912910 PMCID: PMC6005475 DOI: 10.1371/journal.pone.0198742] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 05/24/2018] [Indexed: 11/21/2022] Open
Abstract
High lipid content of oocytes and embryos in domestic animals is one of the well-known factors associated with poor cryosurvival. Herein, we wanted to determine whether the use of delipidated estrous sheep serum during in vitro maturation (IVM) of ovine oocytes reduces the cytoplasmic lipid droplets content and improves embryo development and cryotolerance after vitrification. Cumulus oocytes complexes (COCs) were matured in vitro for 24 h in medium supplemented with whole or delipidated estrous sheep serum prior to vitrification. Neutral lipid present in lipid droplets of COCs, cleavage rate, embryo development rate on Day 6 and Day 8, and hatching rate on Day 8, were compared among experimental groups. Endoplasmic reticulum stress genes were evaluated in in vitro matured COCs under different lipid conditions prior to vitrification. The lipid droplets’ content (mean fluorescence intensity) of oocytes cultured with IVM media supplemented with delipidated serum was lower than COCs matured with whole serum (7.6 ± 1.7 vs. 22.8 ± 5.0 arbitrary units, respectively; P< 0.05). Despite IVM treatment, oocytes subjected to vitrification showed impaired competence compared with the non-vitrified groups (P<0.05). No significant differences in embryo production were observed in non-vitrified COCs after maturation in delipidated or whole serum (33.4±4.9 vs 31.9 ±4.2). COCs matured in delipidated serum and subjected to vitrification showed increased expression of ATF4, ATF6, GRP78, and CHOP10 genes (ER stress markers). Collectively, our results demonstrate that although supplementation of IVM medium with delipidated estrous sheep serum reduces the presence of cytoplasmic lipid droplets in oocytes after maturation, oocyte cryotolerance is not improved. Notably, the expression of genes associated with the unfolded protein response (UPR) was increased in COCs, with fewer lipid droplets subjected to vitrification, suggesting that oocyte cryopreservation is associated with ER stress and activation of adaptive responses.
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Affiliation(s)
- Natalibeth Barrera
- Instituto de Reproducción Animal Uruguay, Fundación IRAUy, Montevideo, Uruguay
- * E-mail: (NB); (AM)
| | | | - Federico Cuadro
- Instituto de Reproducción Animal Uruguay, Fundación IRAUy, Montevideo, Uruguay
| | - Diego Bosolasco
- Instituto de Reproducción Animal Uruguay, Fundación IRAUy, Montevideo, Uruguay
| | - Ana P. Mulet
- Unidad de Animales Transgénicos y de Experimentación, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Martina Crispo
- Unidad de Animales Transgénicos y de Experimentación, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Alejo Menchaca
- Instituto de Reproducción Animal Uruguay, Fundación IRAUy, Montevideo, Uruguay
- * E-mail: (NB); (AM)
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37
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Zhang Y, Qu P, Ma X, Qiao F, Ma Y, Qing S, Zhang Y, Wang Y, Cui W. Tauroursodeoxycholic acid (TUDCA) alleviates endoplasmic reticulum stress of nuclear donor cells under serum starvation. PLoS One 2018; 13:e0196785. [PMID: 29718981 PMCID: PMC5931650 DOI: 10.1371/journal.pone.0196785] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 04/19/2018] [Indexed: 12/11/2022] Open
Abstract
Serum starvation is a routine protocol for synchronizing nuclear donor cells to G0/G1 phase during somatic cell nuclear transfer (SCNT). However, abrupt serum deprivation can cause serious stress to the cells cultured in vitro, which might result in endoplasmic reticulum (ER) stress, chromosome damage, and finally reduce the success rate of SCNT. In the present study, the effects of tauroursodeoxycholic acid (TUDCA), an effective ER stress-relieving drug, on the nuclear donor cells under serum deprivation condition as well as following SCNT procedures were first assessed in the bovine. The results showed that TUDCA significantly reduced ER stress and cell apoptosis in those nuclear donor cells. Moreover, it significantly decreased the expression of Hdac1 and Dnmt1, and increased the level of H3K9 acetylation in nuclear donor cells compared with control group. SCNT reconstructed embryos cloned from TUDCA-treated donor cells showed significantly higher fusion, cleavage, blastocyst formation rate, total cell number in day 7 blastocysts, and lower apoptotic index than that from control group. In addition, the expression of Hdac1, Dnmt1 and Bax was significantly lower in blastocysts derived from TUDCA-treated donor cells than that from control group. In conclusion, TUDCA significantly reduced the ER stress of nuclear donor cells under serum starvation condition, and significantly improved the developmental competence of following SCNT reconstructed embryos when these TUDCA-treated cells were used as the nuclear donors.
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Affiliation(s)
- Ying Zhang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, PR China
- Engineering Center for Animal Embryo Technology, Yangling, Shaanxi, PR China
- Laboratory of Embryo Technology in Livestock, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Pengxiang Qu
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, PR China
- Engineering Center for Animal Embryo Technology, Yangling, Shaanxi, PR China
- Laboratory of Embryo Technology in Livestock, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Xiaonan Ma
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, PR China
- Engineering Center for Animal Embryo Technology, Yangling, Shaanxi, PR China
- Laboratory of Embryo Technology in Livestock, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Fang Qiao
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, PR China
- Engineering Center for Animal Embryo Technology, Yangling, Shaanxi, PR China
- Laboratory of Embryo Technology in Livestock, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Yefei Ma
- Department of Gynecology and Obstetrics, Tangdu Hospital, the Fourth Military Medical University, Xi'an, Shannxi Province, PR China
| | - Suzhu Qing
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, PR China
- Engineering Center for Animal Embryo Technology, Yangling, Shaanxi, PR China
- Laboratory of Embryo Technology in Livestock, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Yong Zhang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, PR China
- Engineering Center for Animal Embryo Technology, Yangling, Shaanxi, PR China
- Laboratory of Embryo Technology in Livestock, Northwest A&F University, Yangling, Shaanxi, PR China
- * E-mail: (YZ); (YW); (WC)
| | - Yongsheng Wang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, PR China
- Engineering Center for Animal Embryo Technology, Yangling, Shaanxi, PR China
- Laboratory of Embryo Technology in Livestock, Northwest A&F University, Yangling, Shaanxi, PR China
- * E-mail: (YZ); (YW); (WC)
| | - Wei Cui
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, United States of America
- Animal Models Core Facility, Institute for Applied Life Sciences (IALS), University of Massachusetts, Amherst, MA, United States of America
- * E-mail: (YZ); (YW); (WC)
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Lee HY, Bae HK, Jung BD, Lee S, Park CK, Yang BK, Cheong HT. Analysis of Endoplasmic Reticulum (ER) Stress Induced during Somatic Cell Nuclear Transfer (SCNT) Process in Porcine SCNT Embryos. Dev Reprod 2018; 22:73-83. [PMID: 29707686 PMCID: PMC5915769 DOI: 10.12717/dr.2018.22.1.073] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 03/11/2018] [Accepted: 03/24/2018] [Indexed: 11/25/2022]
Abstract
This study investigates the endoplasmic reticulum (ER) stress and subsequent
apoptosis in duced during somatic cell nuclear transfer (SCNT) process of
porcine SCNT embryos. Porcine SCNT and in vitro fertilization
(IVF) embryos were sampled at 3 h and 20 h after SCNT or IVF and at the
blastocyst stage for mRNA extraction. The x-box binding protein 1 (Xbp1) mRNA
and the expressions of ER stress-associated genes were confirmed by RT-PCR or
RT-qPCR. Apoptotic gene expression was analyzed by RT-PCR. Before commencing
SCNT, somatic cells treated with tunicamycin (TM), an ER stress inducer,
confirmed the splicing of Xbp1 mRNA and increased expressions of ER
stress-associated genes. In all the embryonic stages, the SCNT embryos, when
compared with the IVF embryos, showed slightly increased expression of spliced
Xbp1 (Xbp1s) mRNA and significantly increased expression of ER stress-associated
genes (p<0.05). In all stages, apoptotic gene expression
was slightly higher in the SCNT embryos, but not significantly different from
that of the IVF embryos except for the Bax/Bcl2L1 ratio in the 1-cell stage
(p<0.05). The result of this study indicates that
excessive ER stress can be induced by the SCNT process, which induce apoptosis
of SCNT embryos.
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Affiliation(s)
- Hwa-Yeon Lee
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
| | - Hyo-Kyung Bae
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
| | - Bae-Dong Jung
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
| | - Seunghyung Lee
- College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, Korea
| | - Choon-Keun Park
- College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, Korea
| | - Boo-Keun Yang
- College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, Korea
| | - Hee-Tae Cheong
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
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Park H, Park J, Kim J, Yang S, Jung J, Kim M, Kang M, Cho YH, Wee G, Yang H, Song B, Kim S, Koo D. Melatonin improves the meiotic maturation of porcine oocytes by reducing endoplasmic reticulum stress during in vitro maturation. J Pineal Res 2018; 64:e12458. [PMID: 29149522 PMCID: PMC5814851 DOI: 10.1111/jpi.12458] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 10/30/2017] [Indexed: 01/10/2023]
Abstract
Under endoplasmic reticulum (ER)-stress conditions, the unfolded protein response (UPR) generates a defense mechanism in mammalian cells. The regulation of UPR signaling is important in oocyte maturation, embryo development, and female reproduction of pigs. Recent studies have shown that melatonin plays an important role as an antioxidant to improve pig oocyte maturation. However, there is no report on the role of melatonin in the regulation of UPR signaling and ER-stress during in vitro maturation (IVM) of porcine oocytes. Therefore, the objective of this study was to investigate the antioxidative effects of melatonin on porcine oocyte maturation through the regulation of ER-stress and UPR signaling. We investigated the changes in the mRNA/protein expression levels of three UPR signal genes (Bip/Grp78, ATF4, P90/50ATF6, sXbp1, and CHOP) on oocytes, cumulus cells, and cumulus-oocyte complexes (COCs) during IVM (metaphase I; 22 hours and metaphase II; 44 hours) by Western blot and reverse transcription-polymerase chain reaction analysis. Treatment with the ER-stress inducer, tunicamycin (Tm), significantly increased expression of UPR markers. Additionally, cumulus cell expansion and meiotic maturation of oocytes were reduced in COCs of Tm-treated groups (1, 5, and 10 μg/mL). We confirmed the reducing effects of melatonin (0.1 μmol/L) on ER-stress after pretreatment with Tm (5 μg/mL; 22 hours) in maturing COCs. Addition of melatonin (0.1 μmol/L) to Tm-pretreated COCs recovered meiotic maturation rates and expression of most UPR markers. In conclusion, we confirmed a role for melatonin in the modulation of UPR signal pathways and reducing ER-stress during IVM of porcine oocytes.
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Affiliation(s)
- Hyo‐Jin Park
- Department of BiotechnologyCollege of EngineeringDaegu UniversityJillyangGyeongsanGyeongbukKorea
| | - Jae‐Young Park
- Department of BiotechnologyCollege of EngineeringDaegu UniversityJillyangGyeongsanGyeongbukKorea
- Saewha HospitalDongnaeBusanKorea
| | - Jin‐Woo Kim
- Department of BiotechnologyCollege of EngineeringDaegu UniversityJillyangGyeongsanGyeongbukKorea
| | - Seul‐Gi Yang
- Department of BiotechnologyCollege of EngineeringDaegu UniversityJillyangGyeongsanGyeongbukKorea
| | - Jae‐Min Jung
- Department of BiotechnologyCollege of EngineeringDaegu UniversityJillyangGyeongsanGyeongbukKorea
| | - Min‐Ji Kim
- Department of BiotechnologyCollege of EngineeringDaegu UniversityJillyangGyeongsanGyeongbukKorea
| | - Man‐Jong Kang
- Department of Animal ScienceCollege of Agriculture and Life SciencesChonnam National UniversityGwangjuKorea
| | - Young Ho Cho
- Department of Pharmaceutics & BiotechnologyCollege of Medical EngineeringKonyang UniversityDaejeonKorea
| | - Gabbine Wee
- Laboratory Animal CenterDaegu‐Gyeongbuk Medical Innovation Foundation (DGMIF)DaeguKorea
| | - Hee‐Young Yang
- Laboratory Animal CenterDaegu‐Gyeongbuk Medical Innovation Foundation (DGMIF)DaeguKorea
| | - Bong‐Seok Song
- National Primate Research Center & Futuristic Animal Resource and Research CenterKorea Research Institute of Bioscience and BiotechnologyOchangChungbukKorea
| | - Sun‐Uk Kim
- National Primate Research Center & Futuristic Animal Resource and Research CenterKorea Research Institute of Bioscience and BiotechnologyOchangChungbukKorea
| | - Deog‐Bon Koo
- Department of BiotechnologyCollege of EngineeringDaegu UniversityJillyangGyeongsanGyeongbukKorea
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Park HJ, Park JY, Kim JW, Yang SG, Jung JM, Kim MJ, Park JJ, Koo DB. Regulation of the Endoplasmic Reticulum Stress by BIP/GRP78 is involved in Meiotic Maturation of Porcine Oocytes In Vitro. Dev Reprod 2017; 21:407-415. [PMID: 29354786 PMCID: PMC5769134 DOI: 10.12717/dr.2017.21.4.407] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Revised: 11/17/2017] [Accepted: 12/04/2017] [Indexed: 11/17/2022]
Abstract
In the present study, we investigated the role of binding immunoglobulin protein/glucose-regulated protein, 78-kDa (BIP/GRP78)-regulated endoplasmic reticulum (ER)-stress on meiotic maturation and cumulus cells expansion in porcine cumulus-oocyte complexes (COCs). Previously, it has been demonstrated that unfolded protein response (UPR)-related genes, such as molecules involved in ER-stress defense mechanisms, were expressed in matured oocytes and cumulus cells during in vitro maturation (IVM) of porcine oocytes. However, BIP/GRP78-mediated regulation of ER stress in porcine oocytes has not been reported. Firstly, we observed the effects of knockdown of BIP/GRP78 (an UPR initiation marker) using porcine-specific siRNAs (#909, #693, and #1570) on oocyte maturation. Among all siRNAs, siRNA #693 significantly reduced the protein levels of UPR marker proteins (BIP/GRP78, ATF4, and P90ATF6) in porcine COCs observed by Western blotting and immunofluorescence analysis. We also observed that the reduction of BIP/GRP78 levels by siRNA#693 significantly inhibited the meiotic maturation of oocytes (siRNA #693: 32.5±10.1% vs control: 77.8±5.3%). In addition, we also checked the effect of ER-stress inhibitors, tauroursodeoxycholic acid (TUDCA, 200 μM) and melatonin (0.1 μM), in BIP/ GRP78-knockdown oocytes. TUDCA and melatonin treatment could restore the expression levels of ER-stress marker proteins (BIP/GRP78, p-eIF2α, eIF2α, ATF4, and P90ATF6) in siRNA #693-transfected matured COCs. In conclusion, these results demonstrated that BIP/GRP78-mediated regulation of UPR signaling and ER stress plays an important role in in vitro maturation of porcine oocytes.
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Affiliation(s)
- Hyo-Jin Park
- Dept. of Biotechnology, College of Engineering, Daegu University, Gyeongsan 38453, Republic of Korea
| | - Jae-Young Park
- Dept. of Biotechnology, College of Engineering, Daegu University, Gyeongsan 38453, Republic of Korea.,Saewha Hospital, Dongnae, Busan 47822, Republic of Korea
| | - Jin-Woo Kim
- Dept. of Biotechnology, College of Engineering, Daegu University, Gyeongsan 38453, Republic of Korea
| | - Seul-Gi Yang
- Dept. of Biotechnology, College of Engineering, Daegu University, Gyeongsan 38453, Republic of Korea
| | - Jae-Min Jung
- Dept. of Biotechnology, College of Engineering, Daegu University, Gyeongsan 38453, Republic of Korea
| | - Min-Ji Kim
- Dept. of Biotechnology, College of Engineering, Daegu University, Gyeongsan 38453, Republic of Korea
| | - Joung Jun Park
- Animal Reproduction & Biotechnology Center, Myung-Poom Hanwoo Consulting, Gangwon 25232, Republic of Korea
| | - Deog-Bon Koo
- Dept. of Biotechnology, College of Engineering, Daegu University, Gyeongsan 38453, Republic of Korea
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Dicks N, Bohrer RC, Gutierrez K, Michalak M, Agellon LB, Bordignon V. Relief of endoplasmic reticulum stress enhances DNA damage repair and improves development of pre-implantation embryos. PLoS One 2017; 12:e0187717. [PMID: 29099865 PMCID: PMC5669469 DOI: 10.1371/journal.pone.0187717] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 10/24/2017] [Indexed: 11/18/2022] Open
Abstract
Early-cleaving embryos are known to have better capacity to reach the blastocyst stage and produce better quality embryos compared to late-cleaving embryos. To investigate the significance of endoplasmic reticulum (ER) stress on early embryo cleavage kinetics and development, porcine embryos produced in vitro were separated into early- and late-cleaving groups and then cultured in the absence or presence of the ER stress inhibitor tauroursodeoxycholic acid (TUDCA). Developing embryos were collected at days 3 to 7 of culture for assessment of ER stress status, incidence of DNA double-strand breaks (DSBs), development and total cell number. In the absence of TUDCA treatment, late-cleaving embryos exhibited ER stress, higher incidence of DNA DSBs, as well as reductions in development to the blastocyst stage and total embryo cell numbers. Treatment of late-cleaving embryos with TUDCA mitigated these effects and markedly improved embryo quality and development. These results demonstrate the importance of stress coping responses in early developing embryos, and that reduction of ER stress is a potential means to improve embryo quality and developmental competence.
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Affiliation(s)
- Naomi Dicks
- Department of Animal Science, McGill University, Ste-Anne-de-Bellevue, Quebec, Canada
| | - Rodrigo C. Bohrer
- Department of Animal Science, McGill University, Ste-Anne-de-Bellevue, Quebec, Canada
| | - Karina Gutierrez
- Department of Animal Science, McGill University, Ste-Anne-de-Bellevue, Quebec, Canada
| | - Marek Michalak
- Department of Biochemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Luis B. Agellon
- School of Human Nutrition, McGill University, Ste-Anne-de-Bellevue, Quebec, Canada
- * E-mail: (VB); (LBA)
| | - Vilceu Bordignon
- Department of Animal Science, McGill University, Ste-Anne-de-Bellevue, Quebec, Canada
- * E-mail: (VB); (LBA)
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Kang MH, Das J, Gurunathan S, Park HW, Song H, Park C, Kim JH. The cytotoxic effects of dimethyl sulfoxide in mouse preimplantation embryos: a mechanistic study. Am J Cancer Res 2017; 7:4735-4752. [PMID: 29187900 PMCID: PMC5706096 DOI: 10.7150/thno.21662] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 09/18/2017] [Indexed: 12/29/2022] Open
Abstract
Rationale: Dimethyl sulfoxide (DMSO) is commonly used as a solvent for water-insoluble substances, a vehicle for drug therapy, and a cryoprotectant for cultured cells. DMSO induced embryonic defects and its mechanism of action remains unclear. The rationale is based on the assumption that DMSO supplementation should induce long-term negative effects on both pre- and post-implantation embryo development. Methods: DMSO induced oxidative stress, ER stress, autophagy, mitophagy, signaling responsible genes and proteins were determined by RT-qPCR, Western blotting, immunofluorescence, and confocal microscopy. DMSO induced mitochondrial dysfunction was measured by transmission electron microcopy and JC-1 assay. Apoptosis was estimated using TUNEL and comet assay. Post-implantation embryo developmental capability was estimated by implantation site and fetus numbers. Results: Exposure to DMSO induced an early oxidative stress response within 0.5 to 2 h in 1-cell zygotes by disrupting the balance of pro- and anti-oxidants. Notably, DMSO-treated 2-cell embryos showed increased expression of unfolded protein response genes such as Hspa5, Hsp90b1, Ddit3, Atf4, and Xbp1. As a result, the development of many embryos is arrested at the 2-cell, 4-cell, or morula stages in a dose-dependent manner. Further, DMSO-induced endoplasmic reticulum stress increased mitochondrial Ca2+ levels, induced mitochondrial depolarization/dysfunction, and induced apoptotic cell death via the JNK/ATF2-dependent pathway. Consequently, treatment with DMSO increased the expression of autophagy initiation-, phagophore elongation-, and autophagosome formation-related genes, as well as localization of PINK1/Parkin, which are the main mediators of mitophagy, in mitochondria. Interestingly, DMSO causes cytotoxic effects in preimplantation embryos by inducing extensive mitophagy and autophagy. Especially, DMSO treatment decreased the inner cell mass and trophectoderm cell numbers as well as mRNA expression of B3gnt5 and Wnt3a in developed blastocysts, which decreased the implantation and developmental rates of full-term offspring after being transferred into pseudopregnant mice. Conclusion: These results provide a significant contribution to finding effective protective agents to combat DMSO mediated reproductive toxicity for application in human embryos in the near future.
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Ali I, Shah SZA, Jin Y, Li ZS, Ullah O, Fang NZ. Reactive oxygen species-mediated unfolded protein response pathways in preimplantation embryos. J Vet Sci 2017; 18:1-9. [PMID: 28057903 PMCID: PMC5366292 DOI: 10.4142/jvs.2017.18.1.1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 09/28/2016] [Accepted: 11/23/2016] [Indexed: 12/19/2022] Open
Abstract
Excessive production of reactive oxygen species (ROS) and endoplasmic reticulum (ER) stress-mediated responses are critical to embryonic development in the challenging in vitro environment. ROS production increases during early embryonic development with the increase in protein requirements for cell survival and growth. The ER is a multifunctional cellular organelle responsible for protein folding, modification, and cellular homeostasis. ER stress is activated by a variety of factors including ROS. Such stress leads to activation of the adaptive unfolded protein response (UPR), which restores homeostasis. However, chronic stress can exceed the toleration level of the ER, resulting in cellular apoptosis. In this review, we briefly describe the generation and impact of ROS in preimplantation embryo development, the ROS-mediated activation mechanism of the UPR via the ER, and the subsequent activation of signaling pathways following ER stress in preimplantation embryos.
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Affiliation(s)
- Ihsan Ali
- Laboratory of Animal Genetic Breeding and Reproduction, Agriculture College of Yanbian University, Yanji 133002, China
| | - Syed Zahid Ali Shah
- National Animal Transmissible Spongiform Encephalopathy Laboratory, Key Laboratory of Animal Epidemiology and Zoonosis of Ministry of Agriculture, College of Veterinary Medicine and State Key Laboratory of Agro Biotechnology, China Agricultural University, Beijing 100193, China
| | - Yi Jin
- Laboratory of Animal Genetic Breeding and Reproduction, Agriculture College of Yanbian University, Yanji 133002, China
| | - Zhong-Shu Li
- Laboratory of Animal Genetic Breeding and Reproduction, Agriculture College of Yanbian University, Yanji 133002, China
| | - Obaid Ullah
- Laboratory of Animal Genetic Breeding and Reproduction, Agriculture College of Yanbian University, Yanji 133002, China
| | - Nan-Zhu Fang
- Laboratory of Animal Genetic Breeding and Reproduction, Agriculture College of Yanbian University, Yanji 133002, China
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de Melo TP, de Camargo GMF, de Albuquerque LG, Carvalheiro R. Genome-wide association study provides strong evidence of genes affecting the reproductive performance of Nellore beef cows. PLoS One 2017; 12:e0178551. [PMID: 28562680 PMCID: PMC5451131 DOI: 10.1371/journal.pone.0178551] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 05/15/2017] [Indexed: 12/31/2022] Open
Abstract
Reproductive traits are economically important for beef cattle production; however, these traits are still a bottleneck in indicine cattle since these animals typically reach puberty at older ages when compared to taurine breeds. In addition, reproductive traits are complex phenotypes, i.e., they are controlled by both the environment and many small-effect genes involved in different pathways. In this study, we conducted genome-wide association study (GWAS) and functional analyses to identify important genes and pathways associated with heifer rebreeding (HR) and with the number of calvings at 53 months of age (NC53) in Nellore cows. A total of 142,878 and 244,311 phenotypes for HR and NC53, respectively, and 2,925 animals genotyped with the Illumina Bovine HD panel (Illumina®, San Diego, CA, USA) were used in GWAS applying the weighted single-step GBLUP (WssGBLUP) method. Several genes associated with reproductive events were detected in the 20 most important 1Mb windows for both traits. Significant pathways for HR and NC53 were associated with lipid metabolism and immune processes, respectively. MHC class II genes, detected on chromosome 23 (window 25-26Mb) for NC53, were significantly associated with pregnancy success of Nellore cows. These genes have been proved previously to be associated with reproductive traits such as mate choice in other breeds and species. Our results suggest that genes associated with the reproductive traits HR and NC53 may be involved in embryo development in mammalian species. Furthermore, some genes associated with mate choice may affect pregnancy success in Nellore cattle.
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Affiliation(s)
- Thaise Pinto de Melo
- Department of Animal Science, School of Agricultural and Veterinarian Sciences, FCAV/ UNESP – Sao Paulo State University, Jaboticabal, Sao Paulo, Brazil
| | | | - Lucia Galvão de Albuquerque
- Department of Animal Science, School of Agricultural and Veterinarian Sciences, FCAV/ UNESP – Sao Paulo State University, Jaboticabal, Sao Paulo, Brazil
- National Council for Scientific and Technological Development (CNPq), Brasília, DF, Brazil
| | - Roberto Carvalheiro
- Department of Animal Science, School of Agricultural and Veterinarian Sciences, FCAV/ UNESP – Sao Paulo State University, Jaboticabal, Sao Paulo, Brazil
- National Council for Scientific and Technological Development (CNPq), Brasília, DF, Brazil
- * E-mail:
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Xiong Y, Chen H, Lin P, Wang A, Wang L, Jin Y. ATF6 knockdown decreases apoptosis, arrests the S phase of the cell cycle, and increases steroid hormone production in mouse granulosa cells. Am J Physiol Cell Physiol 2017; 312:C341-C353. [PMID: 28100484 DOI: 10.1152/ajpcell.00222.2016] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 11/01/2016] [Accepted: 11/23/2016] [Indexed: 12/18/2022]
Abstract
Activating transcription factor 6 (ATF6), a sensor protein located in the endoplasmic reticulum (ER) membrane, is an important factor in the ER stress signaling pathway. ER stress is known to be involved in folliculogenesis, follicular growth, and ovulation; however, the physiological function of ATF6 in mouse granulosa cells remains largely unknown. The aim of this study was to assess the role of ATF6 in mouse granulosa cells with respect to apoptosis, the cell cycle, and steroid hormone production, as well as several key genes related to follicular development, via RNA interference, immunohistochemical staining, real-time quantitative PCR, Western blotting, flow cytometry, terminal deoxynucleotidyltransferase-mediated deoxy-UTP nick end labeling (TUNEL) assay, and ELISA. Immunohistochemical staining revealed that ATF6 was extensively distributed in the granulosa cells of various ovarian follicles and oocytes in adult female mice. FSH or LH treatment significantly increased ATF6 protein levels in mouse granulosa cells. In the meantime, a recombinant plasmid was used to deplete ATF6 successfully using short hairpin RNA-mediated interference technology, which was verified at both the mRNA and protein levels. Flow cytometry and TUNEL assay analysis indicated that ATF6 depletion decreased apoptosis and arrested the S phase of the cell cycle in mouse granulosa cells. Consistent with these results, p53, caspase-3, B cell lymphoma 2 (Bcl-2)-associated X protein, CCAAT-enhancer-binding protein homologous protein, cyclin A1, cyclin B1, and cyclin D2 mRNA expression decreased, whereas Bcl-2 and glucose-regulated protein 78 kDa mRNA expression increased. Interestingly, ATF6 knockdown obviously increased progesterone and estradiol production in mouse granulosa cells. Cytochrome P450 1b1 (Cyp1b1) mRNA levels were downregulated, whereas Cyp11a1, steroidogenic acute regulatory, and Cyp19a1 mRNA levels were upregulated, in keeping with the changes in steroid hormones. Furthermore, ATF6 disruption remarkably increased insulin-like growth factor binding protein4 (Igfbp4) expression and decreased hyaluronan synthase 2 (Has2), prostaglandin-endoperoxide synthase 2 (Ptgs2), and prostaglandin F receptor (Ptgfr) expression in mouse granulosa cells, which are proteins crucial for follicular development. But, after treating with tunicamycin, the levels of Has2, Ptgs2, and Ptgfr increased relatively, whereas Igfbp4 expression decreased. Collectively, these results imply that ATF6, as a key player in ER stress signaling, may regulate apoptosis, the cell cycle, steroid hormone synthesis, and other modulators related to folliculogenesis in mouse granulosa cells, which may indirectly be involved in the development, ovulation, and atresia of ovarian follicles by affecting the physiological function of granulosa cells. The present study extends our understanding and provides new insights into the physiological significance of ATF6, a key signal transducer of ER stress, in ovarian granulosa cells.
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Affiliation(s)
- Yongjie Xiong
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; and.,College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Huatao Chen
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; and.,College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Pengfei Lin
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; and.,College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Aihua Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Lei Wang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; and.,College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Yaping Jin
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; and .,College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
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46
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Expression profile of rrbp1 genes during embryonic development and in adult tissues of Xenopus laevis. Gene Expr Patterns 2016; 23-24:1-6. [PMID: 28034797 DOI: 10.1016/j.gep.2016.12.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 12/17/2016] [Accepted: 12/19/2016] [Indexed: 01/01/2023]
Abstract
Recent studies suggest that ribosome-binding protein 1 (RRBP1) is involved in multiple diseases such as tumorigenesis and cardiomyopathies. However, its function during embryonic development remains largely unknown. We searched Xenopus laevis database with human RRBP1 protein sequence and identified two cDNA sequences encoding Xenopus orthologs of RRBP1 including rrbp1a (NM_001089623) and rrbp1b (NM_001092468). Both genes were firstly detected at blastula stage 8 with weak signals in animal hemisphere by whole mount in situ hybridization. Evident expression of rrbp1 was mainly detected in cement gland and notochord at neurula and tailbud stages. Heart expression of rrbp1 was detected at stage 36. RT-PCR results indicated that very weak expression of rrbp1a was firstly detected in oocytes, followed by increasing expression until stage 39. Differently, very weak expression of rrbp1b was firstly observed at stage 2, and then maintained at a lower level to stage 17 followed by an intense expression from stages 19-39. Moreover, both expression profiles were also different in adult tissues. This study reports Xenopus rrbp1 expression during early embryonic development and in adult tissues. Our study will facilitate the functional analysis of Rrbp1 family during embryonic development.
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47
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Yang Y, Cheung HH, Tu J, Miu KK, Chan WY. New insights into the unfolded protein response in stem cells. Oncotarget 2016; 7:54010-54027. [PMID: 27304053 PMCID: PMC5288239 DOI: 10.18632/oncotarget.9833] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 05/29/2016] [Indexed: 12/15/2022] Open
Abstract
The unfolded protein response (UPR) is an evolutionarily conserved adaptive mechanism to increase cell survival under endoplasmic reticulum (ER) stress conditions. The UPR is critical for maintaining cell homeostasis under physiological and pathological conditions. The vital functions of the UPR in development, metabolism and immunity have been demonstrated in several cell types. UPR dysfunction activates a variety of pathologies, including cancer, inflammation, neurodegenerative disease, metabolic disease and immune disease. Stem cells with the special ability to self-renew and differentiate into various somatic cells have been demonstrated to be present in multiple tissues. These cells are involved in development, tissue renewal and certain disease processes. Although the role and regulation of the UPR in somatic cells has been widely reported, the function of the UPR in stem cells is not fully known, and the roles and functions of the UPR are dependent on the stem cell type. Therefore, in this article, the potential significances of the UPR in stem cells, including embryonic stem cells, tissue stem cells, cancer stem cells and induced pluripotent cells, are comprehensively reviewed. This review aims to provide novel insights regarding the mechanisms associated with stem cell differentiation and cancer pathology.
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Affiliation(s)
- Yanzhou Yang
- Key Laboratory of Fertility Preservation and Maintenance, Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Ningxia Medical University, Yinchuan, Ningxia, P.R. China
- The Chinese University of Hong Kong–Shandong University Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, HKSAR, China
| | - Hoi Hung Cheung
- The Chinese University of Hong Kong–Shandong University Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, HKSAR, China
| | - JiaJie Tu
- The Chinese University of Hong Kong–Shandong University Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, HKSAR, China
| | - Kai Kei Miu
- The Chinese University of Hong Kong–Shandong University Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, HKSAR, China
| | - Wai Yee Chan
- The Chinese University of Hong Kong–Shandong University Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, HKSAR, China
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LIU KS, PENG ZH, CHENG WJ, DAI CF, TONG H. Endoplasmic reticulum stress-induced apoptosis in the development of reproduction. REPRODUCTION AND CONTRACEPTION 2016; 27:51-59. [PMID: 32288402 PMCID: PMC7129369 DOI: 10.7669/j.issn.1001-7844.2016.01.0051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Indexed: 12/21/2022]
Abstract
Proteins synthesized in the endoplasmic reticulum (ER) are properly folded with the assistance of ER chaperones. Accumulation of misfolded protein in the ER triggers an adaptive ER stress (ERS) response termed the unfolded protein response. Recent interest has focused on the possibility that the accumulation of misfolded proteins can also contribute to reproductive response, including preimplantation embryos, testicular germ cell, placenta, and unexplained intrauterine growth restriction (IUGR). The major ERS pathway constituents are present at all stages of preimplantation development and that the activation of ERS pathways can be induced at the 8-cell, morula and blastocyst stage. This review mainly introduced the research progress of ERS induced apoptosis of reproductive cells, providing a new direction for the research of reproductive disease therapy.
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Affiliation(s)
- Kang-sheng LIU
- Department of Clinical Laboratory, State Key Laboratory of Reproductive Medicine Nanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Nanjing 210029, China
| | - Zheng-hang PENG
- School of Public Health, Nanjing Medical University, Nanjing 210029, China
| | - Weng-jun CHENG
- Department of Maternity and Child Health Care, School of Public Health, Anhui Medical University, Hefei 230032, China
| | - Chun-fan DAI
- Department of Obstetrical, Nanjing Maternity and Child Health Care Hospital, Nanjing 210009, China
| | - Hua TONG
- Department of Scientific Research and Education, Nanjing Maternity and Child Health Care Hospital, Nanjing 210009, China
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The role of the endoplasmic reticulum stress in stemness, pluripotency and development. Eur J Cell Biol 2016; 95:115-23. [PMID: 26905505 DOI: 10.1016/j.ejcb.2016.02.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 02/01/2016] [Accepted: 02/05/2016] [Indexed: 01/15/2023] Open
Abstract
The molecular machinery of endoplasmic reticulum (ER) integrates various intracellular and extracellular cues to maintain homeostasis in diverse physiological or pathological scenarios. ER stress and the unfolded protein response (UPR) have been found to mediate molecular and biochemical mechanisms that affect cell proliferation, differentiation, and apoptosis. Although a number of reviews on the ER stress response have been published, comprehensive reviews that broadly summarize ER physiology in the context of pluripotency, embryonic development, and tissue homeostasis are lacking. This review complements the current ER literature and provides a summary of the important findings on the role of the ER stress and UPR in embryonic development and pluripotent stem cells.
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Babayev E, Lalioti MD, Favero F, Seli E. Cross-Talk Between FSH and Endoplasmic Reticulum Stress: A Mutually Suppressive Relationship. Reprod Sci 2015; 23:352-64. [PMID: 26342052 DOI: 10.1177/1933719115602770] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Suboptimal cellular conditions result in the accumulation of unfolded proteins in the endoplasmic reticulum (ER) and trigger ER stress. In this study, we investigated the effects of follicle stimulating hormone (FSH) on ER stress in granulosa cells (GCs) obtained from 3-week-old female C57BL6 mice 24 or 48 hours after intraperitoneal injection of 5 IU pregnant mare's serum gonadotropin (PMSG), and in primary mouse GCs in culture treated with FSH (10-100 mIU/mL) for 24 or 48 hours. Moreover, mouse GCs in culture were treated with tunicamycin (Tm) or thapsigargin (Tp), which induce ER stress by inhibiting N-glycosylation of ER proteins and ER calcium adenosine triphosphatase, respectively, and their response to FSH was evaluated. We found that FSH attenuated ER stress in mouse GCs in vivo and in vitro; messenger RNA levels of ER stress-associated genes Xbp1s, Atf6, Chop, and Casp12 were decreased upon exposure to FSH/PMSG. Activating transcription factor 4 protein levels also demonstrated consistent decrease following FSH stimulation. Both Tm and Tp treatments inhibited FSH response, ER stress-induced cells did not show any change in estradiol levels in response to FSH, whereas in untreated GCs, estradiol production increased 3-fold after incubation with FSH for 60 hours. Furthermore, ER stress-induced cells failed to demonstrate aromatase (Cyp19a1) expression upon exposure to FSH. Importantly, under high-ER stress conditions FSH stimulation was unable to downregulate the expression of ER stress-associated genes. Our findings suggest that FSH decreases ER stress in GCs under physiologic conditions. However, under conditions that cause a significant increase in ER stress, FSH response is attenuated.
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Affiliation(s)
- Elnur Babayev
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Maria D Lalioti
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA Biogen Idec, Cambridge, MA, USA
| | - Federico Favero
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Emre Seli
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
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