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Jeon SB, Jeong PS, Kim MJ, Kang HG, Song BS, Kim SU, Cho SK, Sim BW. Enhancement of porcine in vitro embryonic development through luteolin-mediated activation of the Nrf2/Keap1 signaling pathway. J Anim Sci Biotechnol 2023; 14:148. [PMID: 38037099 PMCID: PMC10691000 DOI: 10.1186/s40104-023-00947-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 10/06/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND Oxidative stress, caused by an imbalance in the production and elimination of intracellular reactive oxygen species (ROS), has been recognized for its detrimental effects on mammalian embryonic development. Luteolin (Lut) has been documented for its protective effects against oxidative stress in various studies. However, its specific role in embryonic development remains unexplored. This study aims to investigate the influence of Lut on porcine embryonic development and to elucidate the underlying mechanism. RESULTS After undergoing parthenogenetic activation (PA) or in vitro fertilization, embryos supplemented with 0.5 µmol/L Lut displayed a significant enhancement in cleavage and blastocyst formation rates, with an increase in total cell numbers and a decrease in the apoptosis rate compared to the control. Measurements on D2 and D6 revealed that embryos with Lut supplementation had lower ROS levels and higher glutathione levels compared to the control. Moreover, Lut supplementation significantly augmented mitochondrial content and membrane potential. Intriguingly, activation of the Nrf2/Keap1 signaling pathway was observed in embryos supplemented with Lut, leading to the upregulation of antioxidant-related gene transcription levels. To further validate the relationship between the Nrf2/Keap1 signaling pathway and effects of Lut in porcine embryonic development, we cultured PA embryos in a medium supplemented with brusatol, with or without the inclusion of Lut. The positive effects of Lut on developmental competence were negated by brusatol treatment. CONCLUSIONS Our findings indicate that Lut-mediated activation of the Nrf2/Keap1 signaling pathway contributes to the enhanced production of porcine embryos with high developmental competence, and offers insight into the mechanisms regulating early embryonic development.
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Affiliation(s)
- Se-Been Jeon
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, 28116, Republic of Korea
- Department of Animal Science, College of Natural Resources & Life Science, Pusan National University, Miryang, 50463, Republic of Korea
| | - Pil-Soo Jeong
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, 28116, Republic of Korea
| | - Min Ju Kim
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, 28116, Republic of Korea
- Department of Animal Science, College of Natural Resources & Life Science, Pusan National University, Miryang, 50463, Republic of Korea
| | - Hyo-Gu Kang
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, 28116, Republic of Korea
- Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Bong-Seok Song
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, 28116, Republic of Korea
| | - Sun-Uk Kim
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, 28116, Republic of Korea
- Department of Functional Genomics, University of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Seong-Keun Cho
- Department of Animal Science, Life and Industry Convergence Research Institute (RICRI), College of Natural Resources & Life Science, Pusan National University, Miryang, 50463, Republic of Korea
| | - Bo-Woong Sim
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, 28116, Republic of Korea.
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Feng Z, Wang T, Sun Y, Chen S, Hao H, Du W, Zou H, Yu D, Zhu H, Pang Y. Sulforaphane suppresses paraquat-induced oxidative damage in bovine in vitro-matured oocytes through Nrf2 transduction pathway. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 254:114747. [PMID: 36907095 DOI: 10.1016/j.ecoenv.2023.114747] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 03/03/2023] [Accepted: 03/06/2023] [Indexed: 06/18/2023]
Abstract
Sulforaphane (SFN), a bioactive phytocompound extracted from cruciferous plants, has received increasing attention due to its vital cytoprotective role in eliminating oxidative free radical through activation of nuclear factor erythroid 2-related factor (Nrf2)-mediated signal transduction pathway. This study aims at a better insight into the protective benefit of SFN in attenuating paraquat (PQ)-caused impairment in bovine in vitro-matured oocytes and the possible mechanisms involved therein. Results showed that addition of 1 μM SFN during oocyte maturation obtained higher proportions of matured oocytes and in vitro-fertilized embryos. SFN application attenuated the toxicological effects of PQ on bovine oocytes, as manifested by enhanced extending capability of cumulus cell and increased extrusion proportion of first polar body. Following incubation with SFN, oocytes exposed to PQ exhibited reduced intracellular ROS and lipid accumulation levels, and elevated T-SOD and GSH contents. SFN also effectively inhibited PQ-mediated increase in BAX and CASPASE-3 protein expressions. Besides, SFN promoted the transcription of NRF2 and its downstream antioxidative-related genes GCLC, GCLM, HO-1, NQO-1, and TXN1 in a PQ-exposed environment, indicating that SFN prevents PQ-caused cytotoxicity through activation of Nrf2 signal transduction pathway. The mechanisms underlying the role of SFN against PQ-induced injury included the inhibition of TXNIP protein and restoration of the global O-GlcNAc level. Collectively, these findings provide novel evidence for the protective role of SFN in alleviating PQ-caused injury, and suggest that SFN application may be an efficacious intervention strategy against PQ cytotoxicity.
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Affiliation(s)
- Zhiqiang Feng
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Tengfei Wang
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Reproductive Medicine Center, Huzhou Maternity & Child Health Care Hospital, Huzhou, Zhejiang Province 313000, China
| | - Yawen Sun
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Siying Chen
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Haisheng Hao
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Weihua Du
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Huiying Zou
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Dawei Yu
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Huabin Zhu
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yunwei Pang
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
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Yagishita Y, Chartoumpekis DV, Kensler TW, Wakabayashi N. NRF2 and the Moirai: Life and Death Decisions on Cell Fates. Antioxid Redox Signal 2023; 38:684-708. [PMID: 36509429 PMCID: PMC10025849 DOI: 10.1089/ars.2022.0200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Significance: The transcription factor NRF2 (NF-E2-related factor 2) plays an important role as a master regulator of the cellular defense system by activating transcriptional programs of NRF2 target genes encoding multiple enzymes related to cellular redox balance and xenobiotic detoxication. Comprehensive transcriptional analyses continue to reveal an ever-broadening range of NRF2 target genes, demonstrating the sophistication and diversification of NRF2 biological signatures beyond its canonical cytoprotective roles. Recent Advances: Accumulating evidence indicates that NRF2 has a strong association with the regulation of cell fates by influencing key processes of cellular transitions in the three major phases of the life cycle of the cell (i.e., cell birth, cell differentiation, and cell death). The molecular integration of NRF2 signaling into this regulatory program occurs through a wide range of NRF2 target genes encompassing canonical functions and those manipulating cell fate pathways. Critical Issues: A singular focus on NRF2 signaling for dissecting its actions limits in-depth understanding of its intersection with the molecular machinery of cell fate determinations. Compensatory responses of downstream pathways governed by NRF2 executed by a variety of transcription factors and multifactorial signaling crosstalk require further exploration. Future Directions: Further investigations using optimized in vivo models and active engagement of overarching approaches to probe the interplay of widespread pathways are needed to study the properties and capabilities of NRF2 signaling as a part of a large network within the cell fate regulatory domain. Antioxid. Redox Signal. 38, 684-708.
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Affiliation(s)
- Yoko Yagishita
- Translational Research Program, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Dionysios V Chartoumpekis
- Service of Endocrinology, Diabetology and Metabolism, Lausanne University Hospital, Lausanne, Switzerland
| | - Thomas W Kensler
- Translational Research Program, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Nobunao Wakabayashi
- Translational Research Program, Fred Hutchinson Cancer Center, Seattle, Washington, USA
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Guan F, Zhang S, Fan L, Sun Y, Ma Y, Cao C, Zhang Y, He M, Du H. Kunling Wan improves oocyte quality by regulating the PKC/Keap1/Nrf2 pathway to inhibit oxidative damage caused by repeated controlled ovarian hyperstimulation. JOURNAL OF ETHNOPHARMACOLOGY 2023; 301:115777. [PMID: 36191663 DOI: 10.1016/j.jep.2022.115777] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 09/05/2022] [Accepted: 09/27/2022] [Indexed: 05/19/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Kunling Wan (KW) is a traditional Chinese medicine that is principally used for kidney deficiency, qi stagnation, and blood stasis, which are basic syndromes of infertility in China. KW can improve ovarian follicular development, ovarian function, and endometrial receptivity, which lead to improving pregnancy outcomes. Repeated controlled ovarian hyperstimulation (COH) reduces oocyte quality and results in a lower pregnancy rate. Whether KW has the potential to improve oocyte quality reduced by repeated COH has yet to be determined. AIMS OF THE STUDY The aim of this study wwas to evaluate the effect of KW on oocyte quality after damage due to repeated COH, and to investigate the mechanism(s) underlying the antioxidative protection of oocytes by mitochondria. MATERIALS AND METHODS Female Kunming mice were randomly divided into four groups: normal group, model (repeated COH) group, KW group, and N-acetylcysteine (NAC) group. We observed the morphology and quality of mitochondria, level of reactive oxygen species (ROS), and antioxidant enzymes activity of each group. Oocytes were treated with H2O2 and KW-containing serum, and we determined the antioxidant effects of KW on H2O2-treated oocytes and the mechanism involved in the regulation of Nrf2 in reducing oxidative damage. RESULTS Our results revealed that repeated COH caused oxidative damage and impaired oocyte mitochondrial function and structure, resulting in poor oocyte quality. KW pretreatment reduced oxidative damage by inhibiting ROS production and improving mitochondrial structure and function, thereby enhancing overall oocyte quality. In response to H2O2, KW activated the PKC/Keap1/Nrf2-signaling pathway and promoted the translocation of Nrf2 from the cytoplasm to the nucleus, which activated the expression of SOD and GSH-Px, and removed the excess ROS that caused the initial mitochondrial damage. CONCLUSIONS KW improved oocyte quality perturbed by repeated COH via reducing oxidative effects and improving mitochondrial function. The mechanism may be related to regulation of the PKC/Keap1/Nrf2 pathway in removing excess ROS.
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Affiliation(s)
- Fengli Guan
- Hebei Key Laboratory of Integrative Medicine on Liver-Kidney Patterns, Institute of Integrative Medicine, College of Integrative Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, 050200, China
| | - Shuancheng Zhang
- Hebei Key Laboratory of Integrative Medicine on Liver-Kidney Patterns, Institute of Integrative Medicine, College of Integrative Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, 050200, China
| | - Lijie Fan
- Hebei Key Laboratory of Integrative Medicine on Liver-Kidney Patterns, Institute of Integrative Medicine, College of Integrative Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, 050200, China
| | - Ying Sun
- Hebei Key Laboratory of Integrative Medicine on Liver-Kidney Patterns, Institute of Integrative Medicine, College of Integrative Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, 050200, China
| | - Yucong Ma
- Hebei Key Laboratory of Integrative Medicine on Liver-Kidney Patterns, Institute of Integrative Medicine, College of Integrative Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, 050200, China
| | - Can Cao
- Hebei Key Laboratory of Integrative Medicine on Liver-Kidney Patterns, Institute of Integrative Medicine, College of Integrative Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, 050200, China
| | - Yu Zhang
- Hebei Key Laboratory of Integrative Medicine on Liver-Kidney Patterns, Institute of Integrative Medicine, College of Integrative Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, 050200, China
| | - Ming He
- Hebei Key Laboratory of Integrative Medicine on Liver-Kidney Patterns, Institute of Integrative Medicine, College of Integrative Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, 050200, China.
| | - Hulan Du
- Hebei Key Laboratory of Integrative Medicine on Liver-Kidney Patterns, Institute of Integrative Medicine, College of Integrative Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, 050200, China.
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Dionne G, Calder M, Betts DH, Rafea BA, Watson AJ. Expression and localization of NRF2/Keap1 signalling pathway genes in mouse preimplantation embryos exposed to free fatty acids. Gene Expr Patterns 2022; 46:119281. [PMID: 36243294 DOI: 10.1016/j.gep.2022.119281] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 09/06/2022] [Accepted: 10/07/2022] [Indexed: 11/04/2022]
Abstract
Obese women experience greater incidence of infertility, with reproductive tracts exposing preimplantation embryos to elevated free fatty acids (FFA) such as palmitic acid (PA) and oleic acid (OA). PA treatment impairs mouse preimplantation development in vitro, while OA co-treatment rescues blastocyst development of PA treated embryos. In the present study, we investigated the effects of PA and OA treatment on NRF2/Keap1 localization, and relative antioxidant enzyme (Glutathione peroxidase; Gpx1, Catalase; Cat, Superoxide dismutase; Sod1 and γ-Glutamylcysteine ligase catalytic unit; Gclc) mRNA levels, during in vitro mouse preimplantation embryo development. Female mice were superovulated, mated, and embryos cultured in the presence of bovine Serum albumin (BSA) control or PA, or OA, alone (each at 100 μM) or PA + OA combined (each at 100 μM) treatment. NRF2 displayed nuclear localization at all developmental stages, whereas Keap1 primarily displayed cytoplasmic localization throughout control mouse preimplantation development in vitro. Relative transcript levels of Nrf2, Keap1, and downstream antioxidants significantly increased throughout control mouse preimplantation development in vitro. PA treatment significantly decreased blastocyst development and the levels of nuclear NRF2, while OA and PA + OA treatments did not. PA and OA treatments did not impact relative mRNA levels of Nrf2, Keap1, Gpx1, Cat, Sod1 or Gclc. Our outcomes demonstrate that cultured mouse embryos display nuclear NRF2, but that PA treatment reduces nuclear NRF2 and thus likely impacts NRF2/KEAP1 stress response mechanisms. Further studies should investigate whether free fatty acid effects on NRF2/KEAP1 contribute to the reduced fertility displayed by obese patients.
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Affiliation(s)
- Grace Dionne
- Department of Obstetrics and Gynaecology, Canada; Department of Physiology and Pharmacology, University of Western Ontario, London ON, N6A 5C1, Canada; The Children's Health Research Institute - Lawson Health Research Institute, London ON, N6C 2R5, Canada
| | - Michele Calder
- Department of Obstetrics and Gynaecology, Canada; Department of Physiology and Pharmacology, University of Western Ontario, London ON, N6A 5C1, Canada; The Children's Health Research Institute - Lawson Health Research Institute, London ON, N6C 2R5, Canada
| | - Dean H Betts
- Department of Obstetrics and Gynaecology, Canada; Department of Physiology and Pharmacology, University of Western Ontario, London ON, N6A 5C1, Canada; The Children's Health Research Institute - Lawson Health Research Institute, London ON, N6C 2R5, Canada
| | - Basim Abu Rafea
- Department of Obstetrics and Gynaecology, Canada; The Children's Health Research Institute - Lawson Health Research Institute, London ON, N6C 2R5, Canada
| | - Andrew J Watson
- Department of Obstetrics and Gynaecology, Canada; Department of Physiology and Pharmacology, University of Western Ontario, London ON, N6A 5C1, Canada; The Children's Health Research Institute - Lawson Health Research Institute, London ON, N6C 2R5, Canada.
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Chen PH, Tjong WY, Yang HC, Liu HY, Stern A, Chiu DTY. Glucose-6-Phosphate Dehydrogenase, Redox Homeostasis and Embryogenesis. Int J Mol Sci 2022; 23:ijms23042017. [PMID: 35216131 PMCID: PMC8878822 DOI: 10.3390/ijms23042017] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/04/2022] [Accepted: 02/08/2022] [Indexed: 12/04/2022] Open
Abstract
Normal embryogenesis requires complex regulation and precision, which depends on multiple mechanistic details. Defective embryogenesis can occur by various mechanisms. Maintaining redox homeostasis is of importance during embryogenesis. NADPH, as produced from the action of glucose-6-phosphate dehydrogenase (G6PD), has an important role in redox homeostasis, serving as a cofactor for glutathione reductase in the recycling of glutathione from oxidized glutathione and for NADPH oxidases and nitric oxide synthases in the generation of reactive oxygen (ROS) and nitrogen species (RNS). Oxidative stress differentially influences cell fate and embryogenesis. While low levels of stress (eustress) by ROS and RNS promote cell growth and differentiation, supra-physiological concentrations of ROS and RNS can lead to cell demise and embryonic lethality. G6PD-deficient cells and organisms have been used as models in embryogenesis for determining the role of redox signaling in regulating cell proliferation, differentiation and migration. Embryogenesis is also modulated by anti-oxidant enzymes, transcription factors, microRNAs, growth factors and signaling pathways, which are dependent on redox regulation. Crosstalk among transcription factors, microRNAs and redox signaling is essential for embryogenesis.
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Affiliation(s)
- Po-Hsiang Chen
- Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 33303, Taiwan; (P.-H.C.); (W.-Y.T.); (D.T.-Y.C.)
- Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 33303, Taiwan
| | - Wen-Ye Tjong
- Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 33303, Taiwan; (P.-H.C.); (W.-Y.T.); (D.T.-Y.C.)
- Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 33303, Taiwan
| | - Hung-Chi Yang
- Department of Medical Laboratory Science and Biotechnology, Yuanpei University of Medical Technology, Hsinchu 30015, Taiwan
- Correspondence: ; Tel.: +886-3-6108175; Fax: +886-3-6102327
| | - Hui-Ya Liu
- Department of Medical Biotechnology and Laboratory Sciences, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan;
| | - Arnold Stern
- Grossman School of Medicine, New York University, New York, NY 10016, USA;
| | - Daniel Tsun-Yee Chiu
- Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 33303, Taiwan; (P.-H.C.); (W.-Y.T.); (D.T.-Y.C.)
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Kobayashi H, Imanaka S, Shigetomi H. Revisiting therapeutic strategies for ovarian cancer by focusing on redox homeostasis. Oncol Lett 2022; 23:80. [PMID: 35111249 PMCID: PMC8771630 DOI: 10.3892/ol.2022.13200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 12/15/2021] [Indexed: 12/12/2022] Open
Abstract
Recent advances in molecular genetics have expanded our understanding of ovarian cancer. High levels of reactive oxygen species (ROS) and upregulation of antioxidant genes are common characteristic features of human cancers. This review reconsiders novel therapeutic strategies for ovarian cancer by focusing on redox homeostasis. A literature search was performed for preclinical and clinical studies published between January 1998 and October 2021 in the PubMed database using a combination of specific terms. ROS serves a central role in tumor suppression and progression by inducing DNA damage and mutations, genomic instability, and aberrant anti- and pro-tumorigenic signaling. Cancer cells increase their antioxidant capacity to neutralize the extra ROS. Additionally, antioxidants, such as CD44 variant isoform 9 (CD44v9) and nuclear factor erythroid 2-related factor 2 (Nrf2), mediate redox homeostasis in ovarian cancer. Furthermore, studies conducted on different cancer types revealed the dual role of antioxidants in tumor progression and inhibition. However, in animal models, genetic loss of antioxidant capacity in the host cannot block cancer initiation and progression. Host-derived antioxidant systems are essential to suppress carcinogenesis, suggesting that antioxidants serve a pivotal role in suppressing cancer development. By contrast, antioxidant activation in cancer cells confers aggressive phenotypes. Antioxidant inhibitors can promote cancer cell death by enhancing ROS levels. Concurrent inhibition of CD44v9 and Nrf2 may trigger apoptosis induction, potentiate chemosensitivity and enhance antitumor activities through the ROS-activated p38/p21 pathway. Antioxidants may have tumor-promoting and -suppressive functions. Therefore, an improved understanding of the role of antioxidants in redox homeostasis and developing antioxidant-specific inhibitors is necessary for treating ovarian cancer.
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Affiliation(s)
- Hiroshi Kobayashi
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, Nara 634-8522, Japan.,Department of Obstetrics and Gynecology, Ms. Clinic MayOne, Kashihara, Nara 634-0813, Japan
| | - Shogo Imanaka
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, Nara 634-8522, Japan.,Department of Obstetrics and Gynecology, Ms. Clinic MayOne, Kashihara, Nara 634-0813, Japan
| | - Hiroshi Shigetomi
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, Nara 634-8522, Japan.,Department of Obstetrics and Gynecology, Aska Ladies Clinic, Nara 634-0001, Japan
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Liu Y, Jones C, Coward K. An investigation of mechanisms underlying mouse blastocyst hatching: a ribonucleic acid sequencing study. F&S SCIENCE 2022; 3:35-48. [PMID: 35559994 DOI: 10.1016/j.xfss.2021.12.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/17/2021] [Accepted: 12/17/2021] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To investigate the regulatory mechanisms and signaling molecules underlying hatching in mouse embryos. DESIGN Experimental laboratory study using a mouse embryo model. SETTING University-based basic scientific research laboratory. ANIMALS A total of 40 B6C3F1 × B6D2F1 mouse embryos were used in this study. INTERVENTION(S) Frozen/thawed mouse embryos, at the 8-cell stage, were cultured in vitro for 2 days. The resulting hatching and prehatching blastocysts were then used for complementary deoxyribonucleic acid (cDNA) library preparation and ribonucleic acid (RNA) sequencing analysis (n = 8 for each group). Differentially expressed genes were then used for downstream functional analysis. In addition, a list of genes related to developmental progression in humans was used to identify genes that were potentially related to the hatching of human embryos. MAIN OUTCOME MEASURE(S) Differentially expressed genes, enriched Gene Ontology terms and canonical pathways, clustered gene networks, activated upstream regulators, and common genes between a gene list of hatching-related genes in mice and a gene list associated with developmental progression in humans. RESULT(S) A total 275 differentially expressed genes were identified between hatching and prehatching blastocysts: 230 up-regulated and 45 down-regulated genes. Functional enrichment analysis suggested that blastocyst hatching in vitro is an adenosine triphosphate (ATP)-dependent process that involves protein biosynthesis and organization of the cytoskeleton. Furthermore, by regulating cell motility, the RhoA signaling pathway (including Arpc2, Cfl1, Gsn, Pfn1, Tpi1, Grb2, Tmsb10, Enah, and Rnd3 genes) may be a crucial signaling pathway during hatching. We also identified a cluster of genes (Krt8, Krt7, Cldn4, and Aqp3) that exerted functional roles in cell-cell junctions and water homeostasis during hatching. Moreover, some growth factors (angiotensinogen and fibroblast growth factor 2) and endocrine factors (estrogen receptor and prolactin) were predicted to be involved in the regulation of embryo hatching. In addition, we identified 81 potential genes that are potentially involved in the hatching process in human embryos. CONCLUSION(S) Our analysis identified potential genes and molecular regulatory pathways involved in the blastocyst hatching process in mice; we also identified genes that may potentially regulate hatching in human embryos. Our findings enhance our knowledge of embryo development and provide useful information for further exploring the mechanisms underlying embryo hatching.
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Affiliation(s)
- Yaqiong Liu
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Women's Centre, John Radcliffe Hospital, Headington, Oxford, United Kingdom
| | - Celine Jones
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Women's Centre, John Radcliffe Hospital, Headington, Oxford, United Kingdom
| | - Kevin Coward
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Women's Centre, John Radcliffe Hospital, Headington, Oxford, United Kingdom.
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Park HJ, Yang SG, Koo DB. SESN2/NRF2 signaling activates as a direct downstream regulator of the PERK pathway against endoplasmic reticulum stress to improve the in vitro maturation of porcine oocytes. Free Radic Biol Med 2022; 178:413-427. [PMID: 34923100 DOI: 10.1016/j.freeradbiomed.2021.12.258] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 11/22/2021] [Accepted: 12/13/2021] [Indexed: 02/05/2023]
Abstract
Nuclear erythroid 2-related factor 2 (NRF2) is a critical regulator of oxidative stress in mammalian oocytes. Our previous study described the protective effects of Sestrin-2 (SESN2) as a stress regulator against endoplasmic reticulum (ER) stress in porcine oocytes during in vitro maturation (IVM). However, their roles in unfolded protein response-related signaling pathways in porcine oocyte maturation capacity remain unknown. The purpose of this study was to evaluate the role of SESN2/NRF2 signaling in H2O2-induced oxidative stress and ER stress via protein kinase-like ER kinase (PERK) downstream factor during porcine oocyte maturation. Here, we found that the p-NRF2(Ser40) activation in the nucleus of porcine oocytes was accompanied by PERK signaling downregulation using western blot and immunofluorescence staining at 44 h after IVM. The total and nuclear NRF2 protein expression was also induced in porcine oocytes following H2O2 and tunicamycin (Tm) exposure. Notably, the upregulation of PERK signaling significantly increased the SESN2 and NRF2 signaling in H2O2-and Tm-exposed porcine cumulus oocyte complexes. Interestingly, inducing the knockdown of the SESN2 gene expression by siRNA interrupted the NRF2 signaling activation of porcine oocyte maturation, whereas NRF2 expression blockade by ochratoxin A, an NRF2 inhibitor, did not affect the expression level of the SESN2 protein. Moreover, a defect in SESN2 completely blocked the activity of nuclear NRF2 on spindle assembly in porcine oocytes. These findings suggest that the PERK/SESN2/NRF2 signaling pathway may play an important role against ER stress during meiotic maturation and oocyte maturation capacity.
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Affiliation(s)
- Hyo-Jin Park
- Department of Biotechnology, College of Engineering, 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, College of Engineering, 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, College of Engineering, 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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10
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Wimberly K, Choe KP. An extracellular matrix damage sensor signals through membrane-associated kinase DRL-1 to mediate cytoprotective responses in Caenorhabditis elegans. Genetics 2021; 220:6444994. [PMID: 34849856 DOI: 10.1093/genetics/iyab217] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 11/12/2021] [Indexed: 11/13/2022] Open
Abstract
We and others previously identified circumferential bands of collagen named annular furrows as key components of a damage sensor in the cuticle of Caenorhabditis elegans that regulates cytoprotective genes. Mutation or loss of non-collagen secreted proteins OSM-7, OSM-8, and OSM-11 activate the same cytoprotective responses without obvious changes to the cuticle indicating that other extracellular proteins are involved. Here, we used RNAi screening to identify protein kinase DRL-1 as a key modulator of cytoprotective gene expression and stress resistance in furrow and extracellular OSM protein mutants. DRL-1 functions downstream from furrow disruption and is expressed in cells that induce cytoprotective genes. DRL-1 is not required for expression of cytoprotective genes under basal or oxidative stress conditions consistent with specificity to extracellular signals. DRL-1 was previously shown to regulate longevity via a 'Dietary Restriction-Like' state, but it functions downstream from furrow disruption by a distinct mechanism. The kinase domain of DRL-1 is related to mammalian MEKK3, and MEKK3 is recruited to a plasma membrane osmosensor complex by a scaffold protein. In C. elegans, DRL-1 contains an atypical hydrophobic C-terminus with predicted transmembrane domains and is constitutively expressed at or near the plasma membrane where it could function to receive extracellular damage signals for cells that mount cytoprotective responses.
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Affiliation(s)
- Keon Wimberly
- Department of Biology and Genetics Institute, University of Florida, Gainesville, FL 32611, USA
| | - Keith P Choe
- Department of Biology and Genetics Institute, University of Florida, Gainesville, FL 32611, USA
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11
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Wang D, Jueraitetibaike K, Tang T, Wang Y, Jing J, Xue T, Ma J, Cao S, Lin Y, Li X, Ma R, Chen X, Yao B. Seminal Plasma and Seminal Plasma Exosomes of Aged Male Mice Affect Early Embryo Implantation via Immunomodulation. Front Immunol 2021; 12:723409. [PMID: 34712227 PMCID: PMC8546305 DOI: 10.3389/fimmu.2021.723409] [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: 06/10/2021] [Accepted: 09/22/2021] [Indexed: 11/13/2022] Open
Abstract
Seminal plasma (SP), particularly SP exosomes (sExos), alters with age and can affect female mouse uterine immune microenvironment. However, the relationship between fertility decline in reproductively older males, and SP and sExos age-related changes, which may compromise the uterine immune microenvironment, remains unclear. The present study demonstrated that the implantation rate of female mice treated with SP from reproductively older male mice (aged-SP group) was lower than that of those treated with SP from younger male mice (young-SP group). RNA-sequencing analysis revealed altered levels of dendritic cell (DC)-related cytokines and chemokines in the uteri of the former group compared with those of the latter group. In vivo and in vitro experiments demonstrated a weaker inhibitory effect of aged SP on DC maturation than of young SP upon stimulation. After isolating and characterizing sExos from young and advanced-age male mice, we discovered that insemination of a subset of the aged-SP group with sExos from young male mice partially recovered the implantation rate decline. Additional in vivo and in vitro experiments revealed that sExos extracted from age male mice exerted a similar effect on DC maturation as SP of aged mice, indicating an age-related sExos inhibitory effect. In conclusion, our study demonstrated that age-related alterations of sExos may be partially responsible for lower implantation rates in the aged-SP group compared with those in the young-SP group, which were mediated by uterine immunomodulation. These findings provide new insights for clinical seminal adjuvant therapy.
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Affiliation(s)
- Dandan Wang
- Department of Reproductive Medicine, Affiliated Jinling Hospital, Medicine School of Nanjing University, Nanjing, China
| | - Kadiliya Jueraitetibaike
- Department of Reproductive Medicine, Affiliated Jinling Hospital, Medicine School of Nanjing University, Nanjing, China
| | - Ting Tang
- Department of Reproductive Medicine, Affiliated Jinling Hospital, Nanjing Medical University, Nanjing, China
| | - Yanbo Wang
- School of Life Sciences, Nanjing University, Nanjing, China
| | - Jun Jing
- Department of Reproductive Medicine, Affiliated Jinling Hospital, Medicine School of Nanjing University, Nanjing, China
| | - Tongmin Xue
- Department of Reproductive Medicine, Affiliated Jinling Hospital, Nanjing Medical University, Nanjing, China
| | - Jinzhao Ma
- Department of Reproductive Medicine, Affiliated Jinling Hospital, Medicine School of Nanjing University, Nanjing, China
| | - Siyuan Cao
- Department of Reproductive Medicine, Affiliated Jinling Hospital, Medicine School of Nanjing University, Nanjing, China
| | - Ying Lin
- Department of Reproductive Medicine, Affiliated Jinling Hospital, Medicine School of Nanjing University, Nanjing, China
| | - Xiaoyan Li
- Department of Reproductive Medicine, Affiliated Jinling Hospital, Medicine School of Nanjing University, Nanjing, China
| | - Rujun Ma
- Department of Reproductive Medicine, Affiliated Jinling Hospital, Medicine School of Nanjing University, Nanjing, China
| | - Xi Chen
- School of Life Sciences, Nanjing University, Nanjing, China
| | - Bing Yao
- Department of Reproductive Medicine, Affiliated Jinling Hospital, Medicine School of Nanjing University, Nanjing, China
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12
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Kim EH, Ridlo MR, Lee BC, Kim GA. Crosstalk between Peroxisomal Activities and Nrf2 Signaling in Porcine Embryos. Antioxidants (Basel) 2021; 10:antiox10050771. [PMID: 34068072 PMCID: PMC8152488 DOI: 10.3390/antiox10050771] [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: 03/29/2021] [Revised: 05/06/2021] [Accepted: 05/10/2021] [Indexed: 01/01/2023] Open
Abstract
Melatonin and phytanic acid (PA) are known to be involved in lipid metabolism and β-oxidation, in which peroxisomal activities also significantly participate. In addition, other studies have reported that the nuclear factor-erythroid-derived 2-like 2 (Nrf2 or NFE2L2) signaling pathway mediates lipid metabolism and its subsequent cascades. As these mechanisms are partially involved in porcine oocytes or embryonic development, we hypothesized that the factors governing these mechanisms could be interconnected. Therefore, we aimed to investigate possible crosstalk between peroxisomal activities and Nrf2 signaling in porcine embryos following melatonin and PA treatment. Porcine embryos were cultured for seven days after parthenogenetic activation, and subsequently treated with melatonin and PA, or injected with Pex19-targeted siRNAs. Real-time PCR, immunocytochemistry, and BODIPY staining were used to evaluate peroxisomal activities, Nrf2 signaling, and subsequent lipid metabolism. We found that melatonin/PA treatment enhanced embryonic development, whereas injection with Pex19-targeted siRNAs had the opposite effect. Moreover, melatonin/PA treatment upregulated peroxisomal activities, Nrf2 signaling, lipid metabolism, and mitochondrial membrane potentials, whereas most of these mechanisms were downregulated by Pex19-targeted siRNAs. Therefore, we suggest that there is a connection between the action of melatonin and PA and the Nrf2 signaling pathway and peroxisomal activities, which positively influences porcine embryonic development.
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Affiliation(s)
- Eui-Hyun Kim
- Department of Theriogenology and Biotechnology, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (E.-H.K.); (M.-R.R.); (B.-C.L.)
- Optipharm Inc., Cheongju 28158, Korea
| | - Muhammad-Rosyid Ridlo
- Department of Theriogenology and Biotechnology, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (E.-H.K.); (M.-R.R.); (B.-C.L.)
- Department of Bioresources Technology and Veterinary, Vocational College, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Byeong-Chun Lee
- Department of Theriogenology and Biotechnology, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea; (E.-H.K.); (M.-R.R.); (B.-C.L.)
| | - Geon A. Kim
- Department of Clinical Pathology, College of Health Science, Eulji University, Uijeongbu 11759, Korea
- Correspondence:
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13
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Xu Y, Yang Y, Huang Y, Ma Q, Shang J, Guo J, Cao X, Wang X, Li M. Inhibition of Nrf2/HO-1 signaling pathway by Dextran Sulfate suppresses angiogenesis of Gastric Cancer. J Cancer 2021; 12:1042-1060. [PMID: 33442403 PMCID: PMC7797653 DOI: 10.7150/jca.50605] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 11/16/2020] [Indexed: 12/11/2022] Open
Abstract
Purpose: To investigate the role of Nrf2/HO-1 signaling pathway in angiogenesis and whether dextran sulfate (DS) could suppress angiogenesis by inhibiting Nrf2/HO-1 signaling pathway in gastric cancer. Methods:In vitro; Western blot analyzed the expression of Nrf2 in gastric cell lines. Tube formation assay observed the effect of gradient concentration DS on the angiogenic potential of HGC-27 cells. Immunofluorescence,western blot and qPCR analyzed the effects of DS on the expression of Nrf2, HO-1 and VEGF under gradient hypoxia time. Immunofluorescence,western blot,qPCR and tube formation assay analyzed the effects of up-regulating or down-regulating Nrf2/HO-1 signaling pathway on VEGF expression and angiogenic potential in HGC-27 cells. In vivo: Construct nude mouse intraperitoneal implantation metastasis model. Immunohistochemistry and western blot analyzed the effects of DS on the expression of Nrf2, HO-1, VEGF and MVD in nude mice. Immunohistochemistry detected the expression of Nrf2, HO-1, VEGF and MVD in human paracancerous tissue and gastric cancer tissues with different degrees of differentiation. Results: The expression of Nrf2 increased most significantly in HGC-27 cell line. DS reduced the angiogenic potential and the expression of Nrf2, HO-1 and VEGF in HGC-27 cells. Down-regulation of Nrf2/HO-1 signaling pathway decreased VEGF expression and angiogenic potential in HGC-27 cells. Up-regulation of Nrf2/HO-1 signaling pathway increased VEGF expression and angiogenic potential in HGC-27 cells. DS reduced the expression of Nrf2, HO-1, VEGF and MVD in nude mice. Nrf2, HO-1, VEGF and MVD showed low expression in paracancerous tissue but high expression in gastric cancer tissues. They were weak, moderate and strong in well, moderately and poorly differentiated gastric cancer tissues, respectively. Conclusion: Nrf2/HO-1 signaling pathway may positively regulate gastric cancer angiogenesis and DS may suppress the angiogenesis by inhibiting Nrf2/HO-1 signaling pathway in gastric cancer.
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Affiliation(s)
- Yuanyi Xu
- Department of Pathology, Ningxia Medical University, Yinchuan, Ningxia 750004, China
| | - Yuanyuan Yang
- Department of Pathology, Ningxia Medical University, Yinchuan, Ningxia 750004, China
| | - Yunning Huang
- Department of Gastrointestinal Surgery, The Affiliated People's Hospital of Ningxia Medical University, Yinchuan, Ningxia 750001, China
| | - Qian Ma
- College of Life Sciences, Ningxia University, Yinchuan, Ningxia 750021, China.,College of Basic Medicine, Ningxia Medical University, Yinchuan, Ningxia 750004, China
| | - Jing Shang
- Third Clinical Medical College, Ningxia Medical University, Yinchuan, Ningxia 750004, China
| | - Jiaxin Guo
- Department of Pathology, Ningxia Medical University, Yinchuan, Ningxia 750004, China
| | - Xiangmei Cao
- Department of Pathology, Ningxia Medical University, Yinchuan, Ningxia 750004, China
| | - Xiaofei Wang
- Department of Pathology, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei 063000, China
| | - Mengqi Li
- Department of Pathology, Ningxia Medical University, Yinchuan, Ningxia 750004, China
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14
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Melatonin-Nrf2 Signaling Activates Peroxisomal Activities in Porcine Cumulus Cell-Oocyte Complexes. Antioxidants (Basel) 2020; 9:antiox9111080. [PMID: 33153240 PMCID: PMC7692444 DOI: 10.3390/antiox9111080] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/27/2020] [Accepted: 10/30/2020] [Indexed: 12/18/2022] Open
Abstract
Melatonin and Nrf2 signaling synergistically improve mammalian oocyte maturation and embryonic development. Furthermore, previous studies have suggested an interplay between peroxisomes and Nrf2 signaling in cells, but it is still unclear whether peroxisomes are involved in oocyte maturation. The aim of the present study was to identify the possible roles of peroxisomes in the melatonin-Nrf2 signaling pathway during in vitro maturation (IVM) of porcine oocytes. Porcine oocytes were treated with melatonin (10-9 M) and brusatol, a Nrf2 specific inhibitor, in order to investigate the mechanism. Then, the rates of maturation and related gene and protein expression were analyzed. During oocyte maturation, melatonin upregulated the expression of gene and protein related to Nrf2 signaling and peroxisomal activities; RNA sequencing partially validated these results. Our results demonstrate that melatonin can activate Nrf2 signaling by binding to melatonin receptor 2, resulting in the upregulation of catalase. Moreover, peroxisomes were also found to be activated in response to melatonin treatment, causing the activation of catalase; together with Nrf2 signaling, peroxisomes synergistically prevented the generation of reactive oxygen species and enhanced oocyte quality. Thus, we suggest that a crosstalk might exist between Nrf2 signaling and peroxisomal activities in porcine oocytes.
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15
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Félix LM, Luzio A, Santos A, Antunes LM, Coimbra AM, Valentim AM. MS-222 induces biochemical and transcriptional changes related to oxidative stress, cell proliferation and apoptosis in zebrafish embryos. Comp Biochem Physiol C Toxicol Pharmacol 2020; 237:108834. [PMID: 32585370 DOI: 10.1016/j.cbpc.2020.108834] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/23/2020] [Accepted: 06/19/2020] [Indexed: 12/19/2022]
Abstract
MS-222, the most widely used anaesthetic in fish, has been shown to induce embryotoxic effects in zebrafish. However, the underlying molecular effects are still elusive. This study aimed to investigate the effects of MS-222 exposure during early developmental stages by evaluating biochemical and molecular changes. Embryos were exposed to 50, 100 or 150 mg L-1 MS-222 for 20 min at one of three developmental stages (256-cell, 50% epiboly, or 1-4 somite stage) and oxidative-stress, cell proliferation and apoptosis-related parameters were determined at two time-points (8 and 26 hpf). Following exposure during the 256-cell stage, the biochemical redox balance was not affected. The genes associated with glutathione homeostasis (gstpi and gclc) were affected at 8 hpf, while genes associated with apoptosis (casp3a and casp6) and cellular proliferation (pcna) were found affected at 26 hpf. An inverted U-shaped response was observed at 8 hpf for catalase activity. After exposure at the 50% epiboly stage, the gclc gene associated with oxidative stress was found upregulated at 8 hpf, while gstpi was downregulated and casp6 was upregulated later on, coinciding with a decrease in glutathione peroxidase (GPx) activity and a non-monotonic elevation of protein carbonyls and casp3a. Additionally, MS-222 treated embryos showed a decrease in DCF-staining at 26 hpf. When exposure was performed at the 1-4 somite stage, a similar DCF-staining pattern was observed. The activity of GPx was also affected whereas RT-qPCR showed that caspase transcripts were dose-dependently increased (casp3a, casp6 and casp9). The pcna mRNA levels were also found to be upregulated while gclc was changed by MS-222. These results highlight the impact of MS-222 on zebrafish embryo development and its interference with the antioxidant, cell proliferation and cellular death systems by mechanisms still to be explained; however, the outcomes point to the Erk/Nrf2 signalling pathway as a target candidate.
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Affiliation(s)
- Luís M Félix
- Instituto de Investigação e Inovação em Saúde (i3S), Laboratory Animal Science (LAS), Instituto de Biologia Molecular Celular (IBMC), Universidade of Porto (UP), Porto, Portugal; Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
| | - Ana Luzio
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Ana Santos
- School of Life and Environmental Sciences (ECVA), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Luís M Antunes
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal; School of Agrarian and Veterinary Sciences (ECAV), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Ana M Coimbra
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal; School of Life and Environmental Sciences (ECVA), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Ana M Valentim
- Instituto de Investigação e Inovação em Saúde (i3S), Laboratory Animal Science (LAS), Instituto de Biologia Molecular Celular (IBMC), Universidade of Porto (UP), Porto, Portugal
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16
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Chen X, Yin T, Zhang B, Sun B, Chen J, Xiao T, Wang B, Li M, Yang J, Fan X. Inhibitory effects of brusatol delivered using glycosaminoglycan‑placental chondroitin sulfate A‑modified nanoparticles on the proliferation, migration and invasion of cancer cells. Int J Mol Med 2020; 46:817-827. [PMID: 32626948 PMCID: PMC7307823 DOI: 10.3892/ijmm.2020.4627] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 05/13/2020] [Indexed: 12/24/2022] Open
Abstract
Breakthroughs in cancer management result from the development of drugs that can be used for early diagnosis and effective treatment. Surgery, chemotherapy, radiotherapy and hormone therapy are the main anticancer therapies. However, traditional cancer chemotherapy is associated with serious systemic side effects. Nanoparticles (NPs) provide an effective solution for cancer treatment via the targeted delivery of drugs to cancer cells, while minimizing injury to normal cells. Glycosaminoglycan-placental chondroitin sulfate A (plCSA) is expressed in a number of tumor cells and trophoblasts. A plCSA-binding peptide (plCSA-BP) was isolated from malaria protein VAR2CSA, which can effectively promote the binding of lipid polymer NPs to tumor cells, thereby significantly enhancing the anticancer effect of encapsulated drugs. Brusatol is an important compound derived from Brucea javanica that exerts a multitude of biological effects, including inhibiting tumor cell growth, reducing the reproduction of malaria parasites, reducing inflammation and resisting virus invasion. In the present study, brusatol-loaded NPs (BNPs) or coumarin 6 NPs (CNPs), plCSA-BP and scrambled control peptide-bound BNPs or CNPs were prepared. Ovarian cancer cells (SKOV3), endometrial cancer cells (HEC-1-A) and lung cancer cells (A549) were treated with the NPs. The uptake of plCSA-CNPs by tumor cells was found to be markedly higher compared with that of other types of NPs. Further studies demonstrated that the plCSA-BNPs promoted the apoptosis of cancer cells more effectively and inhibited their proliferation, invasion and migration, accompanied by downregulation of matrix metalloproteinase (MMP)-2, MMP-9 and B-cell CLL/lymphoma 2 (BCL2) levels, but upregulation of BCL2-associated X protein BAX and cleaved caspase-3 levels. The results demonstrated the potential of brusatol delivered by plCSA-modified NPs as a chemotherapeutic agent for the targeted therapy of tumors by regulating the BCL2, BAX, cleaved caspase-3, MMP-2 and MMP-9 pathways, and indicated that it may be an effective and safe strategy for the treatment of various tumors.
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Affiliation(s)
- Xin Chen
- Reproductive Medical Center, Renmin Hospital of Wuhan University and Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, Wuhan, Hubei 430060, P.R. China
| | - Tailang Yin
- Reproductive Medical Center, Renmin Hospital of Wuhan University and Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, Wuhan, Hubei 430060, P.R. China
| | - Baozhen Zhang
- Laboratory for Reproductive Health, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong 518052, P.R. China
| | - Beini Sun
- Key Laboratory of Microbiology, College of Heilongjiang Province, School of Life Science, Heilongjiang University, Harbin, Heilongjiang 150080, P.R. China
| | - Jie Chen
- Laboratory for Reproductive Health, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong 518052, P.R. China
| | - Tianxia Xiao
- Laboratory for Reproductive Health, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong 518052, P.R. China
| | - Baobei Wang
- Laboratory for Reproductive Health, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong 518052, P.R. China
| | - Mengxia Li
- Laboratory for Reproductive Health, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong 518052, P.R. China
| | - Jing Yang
- Reproductive Medical Center, Renmin Hospital of Wuhan University and Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, Wuhan, Hubei 430060, P.R. China
| | - Xiujun Fan
- Laboratory for Reproductive Health, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong 518052, P.R. China
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17
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Chen M, Vial ML, Gee L, Davis RA, St John JA, Ekberg JAK. The plant natural product 2-methoxy-1,4-naphthoquinone stimulates therapeutic neural repair properties of olfactory ensheathing cells. Sci Rep 2020; 10:951. [PMID: 31969642 PMCID: PMC6976649 DOI: 10.1038/s41598-020-57793-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 12/11/2019] [Indexed: 01/04/2023] Open
Abstract
Olfactory ensheathing cells (OECs) are crucial for promoting the regeneration of the primary olfactory nervous system that occurs throughout life. Transplantation of OECs has emerged as a promising therapy for nervous system injuries, in particular for spinal cord injury repair. Functional outcomes in both animals and humans are, however, highly variable, primarily because it is difficult to rapidly obtain enough OECs for transplantation. Compounds which can stimulate OEC proliferation without changing the phenotype of the cells are therefore highly sought after. Additionally, compounds which can stimulate favourable cell behaviours such as migration and phagocytic activity are desirable. We conducted a medium-throughput screen testing the Davis open access natural product-based library (472 compounds) and subsequently identified the known plant natural product 2-methoxy-1,4-naphthoquinone as a stimulant of OEC viability. We showed that 2-methoxy-1,4-naphthoquinone: (i) strongly stimulates proliferation over several weeks in culture whilst maintaining the OEC phenotype; (ii) stimulates the phagocytic activity of OECs, and (iii) modulates the cell cycle. We also identified the transcription factor Nrf2 as the compound’s potential molecular target. From these extensive investigations we conclude that 2-methoxy-1,4-naphthoquinone may enhance the therapeutic potential of OECs by stimulating proliferation prior to transplantation.
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Affiliation(s)
- M Chen
- Clem Jones Centre for Neurobiology and Stem Cell Research, Griffith University, Nathan, 4111, QLD, Australia.,Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD, 4111, Australia.,Menzies Health Institute Queensland, Griffith University, Southport, QLD, 4222, Australia
| | - M L Vial
- Clem Jones Centre for Neurobiology and Stem Cell Research, Griffith University, Nathan, 4111, QLD, Australia.,Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD, 4111, Australia.,Menzies Health Institute Queensland, Griffith University, Southport, QLD, 4222, Australia
| | - L Gee
- Clem Jones Centre for Neurobiology and Stem Cell Research, Griffith University, Nathan, 4111, QLD, Australia.,Menzies Health Institute Queensland, Griffith University, Southport, QLD, 4222, Australia
| | - R A Davis
- Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD, 4111, Australia
| | - J A St John
- Clem Jones Centre for Neurobiology and Stem Cell Research, Griffith University, Nathan, 4111, QLD, Australia.,Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD, 4111, Australia.,Menzies Health Institute Queensland, Griffith University, Southport, QLD, 4222, Australia
| | - J A K Ekberg
- Clem Jones Centre for Neurobiology and Stem Cell Research, Griffith University, Nathan, 4111, QLD, Australia. .,Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD, 4111, Australia. .,Menzies Health Institute Queensland, Griffith University, Southport, QLD, 4222, Australia.
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18
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Abstract
Proteasomes are multienzyme complexes that maintain protein homeostasis (proteostasis) and important cellular functions through the degradation of misfolded, redundant, and damaged proteins. It is well established that aging is associated with the accumulation of damaged and misfolded proteins. This phenomenon is paralleled by declined proteasome activity. When the accumulation of redundant proteins exceed degradation, undesirable signaling and/or aggregation occurs and are the hallmarks of neurodegenerative diseases and many cancers. Thus, increasing proteasome activity has been recognized as a new approach to delay the onset or ameliorate the symptoms of neurodegenerative and other proteotoxic disorders. Enhancement of proteasome activity has many therapeutic potentials but is still a relatively unexplored field. In this perspective, we review current approaches, genetic manipulation, posttranslational modification, and small molecule proteasome agonists used to increase proteasome activity, challenges facing the field, and applications beyond aging and neurodegenerative diseases.
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Affiliation(s)
- Evert Njomen
- Department of Chemistry, and Pharmacology & Toxicology, Michigan State University, East Lansing, Michigan 48824, United States
| | - Jetze J. Tepe
- Department of Chemistry, and Pharmacology & Toxicology, Michigan State University, East Lansing, Michigan 48824, United States
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