1
|
Hou T, Fan X, Zhang Q, Zhang H, Zhang D, Tao L, Wang Z. Dibutyl phthalate exposure induced mitochondria-dependent ferroptosis by enhancing VDAC2 in zebrafish ZF4 cells. Environ Pollut 2024; 348:123846. [PMID: 38548160 DOI: 10.1016/j.envpol.2024.123846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/29/2024] [Accepted: 03/21/2024] [Indexed: 04/02/2024]
Abstract
Dibutyl phthalate (DBP) contamination has raised global concern for decades, while its health risk with toxic mechanisms requires further elaboration. This study used zebrafish ZF4 cells to investigate the toxicity of ferroptosis with underlying mechanisms in response to DBP exposure. Results showed that DBP induced ferroptosis, characterized by accumulation of ferrous iron, lipid peroxidation, and decrease of glutathione peroxidase 4 levels in a time-dependent manner, subsequently reduced cell viability. Transcriptome analysis revealed that voltage-dependent anion-selective channel (VDAC) in mitochondrial outer membrane was upregulated in ferroptosis signaling pathways. Protecting mitochondria with a VDAC2 inhibitor or siRNAs attenuated the accumulation of mitochondrial superoxide and lipid peroxides, the opening of mitochondrial permeability transition pore (mPTP), and the overload of iron levels, suggesting VDAC2 oligomerization mediated the influx of iron into mitochondria that is predominant and responsible for mitochondria-dependent ferroptosis under DBP exposure. Furthermore, the pivotal role of activating transcription factor 4 (ATF4) was identified in the transcriptional regulation of vdac2 by ChIP assay. And the intervention of atf4b inhibited DBP-induced VDAC2 upregulation and oligomerization. Taken together, this study reveals that ATF4-VDAC2 signaling pathway is involved in the DBP-induced ferroptosis in zebrafish ZF4 cells, contributing to the in-depth understanding of biotoxicity and the ecological risk assessment of phthalates.
Collapse
Affiliation(s)
- Tingting Hou
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xiaoteng Fan
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Qianqing Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Haowei Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Dingfu Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Lu Tao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Zaizhao Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China.
| |
Collapse
|
2
|
Gasparini C, Iori S, Pietropoli E, Bonato M, Giantin M, Barbarossa A, Bardhi A, Pilastro A, Dacasto M, Pauletto M. Sub-acute exposure of male guppies (Poecilia reticulata) to environmentally relevant concentrations of PFOA and GenX induces significant changes in the testis transcriptome and reproductive traits. Environ Int 2024; 187:108703. [PMID: 38705092 DOI: 10.1016/j.envint.2024.108703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/23/2024] [Accepted: 04/24/2024] [Indexed: 05/07/2024]
Abstract
Poly- and perfluoroalkyl substances (PFAS) are frequently detected in the environment and are linked to adverse reproductive health outcomes in humans. Although legacy PFAS have been phased out due to their toxicity, alternative PFAS are increasingly used despite the fact that information on their toxic effects on reproductive traits is particularly scarce. Here, we exposed male guppies (Poecilia reticulata) for a short period (21 days) to an environmentally realistic concentration (1 ppb) of PFOA, a legacy PFAS, and its replacement compound, GenX, to assess their impact on reproductive traits and gene expression. Exposure to PFAS did not impair survival but instead caused sublethal effects. Overall, PFAS exposure caused changes in male sexual behaviour and had detrimental effects on sperm motility. Sublethal variations were also seen at the transcriptional level, with the modulation of genes involved in immune regulation, spermatogenesis, and oxidative stress. We also observed bioaccumulation of PFAS, which was higher for PFOA than for GenX. Our results offer a comprehensive comparison of these two PFAS and shed light on the toxicity of a newly emerging alternative to legacy PFAS. It is therefore evident that even at low concentrations and with short exposure, PFAS can have subtle yet significant effects on behaviour, fertility, and immunity. These findings underscore the potential ramifications of pollution under natural conditions and their impact on fish populations.
Collapse
Affiliation(s)
- C Gasparini
- Department of Biology, University of Padova, Via U. Bassi 58/B, I-35131, Padova, Italy; National Biodiversity Future Center, Piazza Marina 61, I-90133 Palermo, Italy
| | - S Iori
- Department of Comparative Biomedicine and Food Science, University of Padova, viale dell'Università 16, I-35020 Agripolis Legnaro (Padova), Italy
| | - E Pietropoli
- Department of Comparative Biomedicine and Food Science, University of Padova, viale dell'Università 16, I-35020 Agripolis Legnaro (Padova), Italy
| | - M Bonato
- Department of Biology, University of Padova, Via U. Bassi 58/B, I-35131, Padova, Italy
| | - M Giantin
- Department of Comparative Biomedicine and Food Science, University of Padova, viale dell'Università 16, I-35020 Agripolis Legnaro (Padova), Italy
| | - A Barbarossa
- Department of Veterinary Medical Sciences, Alma Mater Studiorum University of Bologna, via Tolara di Sopra 50, I-40064 Ozzano dell'Emilia (Bologna), Italy; Health Sciences and Technologies-Interdepartmental Centre for Industrial Research (CIRI-SDV), Alma Mater Studiorum University of Bologna, I-40064 Ozzano dell'Emilia (Bologna), Italy
| | - A Bardhi
- Department of Veterinary Medical Sciences, Alma Mater Studiorum University of Bologna, via Tolara di Sopra 50, I-40064 Ozzano dell'Emilia (Bologna), Italy
| | - A Pilastro
- Department of Biology, University of Padova, Via U. Bassi 58/B, I-35131, Padova, Italy; National Biodiversity Future Center, Piazza Marina 61, I-90133 Palermo, Italy
| | - M Dacasto
- Department of Comparative Biomedicine and Food Science, University of Padova, viale dell'Università 16, I-35020 Agripolis Legnaro (Padova), Italy
| | - M Pauletto
- Department of Comparative Biomedicine and Food Science, University of Padova, viale dell'Università 16, I-35020 Agripolis Legnaro (Padova), Italy.
| |
Collapse
|
3
|
Sposato AL, Llewellyn DR, Weber JM, Hollins HL, Schrock MN, Farrell JA, Gagnon JA. Germ cells do not progress through spermatogenesis in the infertile zebrafish testis. bioRxiv 2023:2023.09.05.556432. [PMID: 37732254 PMCID: PMC10508784 DOI: 10.1101/2023.09.05.556432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Abstract
Vertebrate spermatogonial stem cells maintain sperm production over the lifetime of an animal but fertility declines with age. While morphological studies have greatly informed our understanding of typical spermatogenesis, the molecular and cellular mechanisms underlying spermatogenesis are not yet understood, particularly with respect to the onset of fertility. We used single-cell RNA sequencing to generate a developmental atlas of the zebrafish testis. Using 5 timepoints across the adult life of a zebrafish, we described cellular profiles in the testis during and after fertility. While all germ cell stages of spermatogenesis are detected in testes from fertile adult zebrafish, testes from older infertile males only contained spermatogonia and a reduced population of spermatocytes. These remaining germ cells are transcriptionally distinct from fertile spermatogonia. Immune cells including macrophages and lymphocytes drastically increase in abundance in infertile testes. Our developmental atlas reveals the cellular changes as the testis ages and defines a molecular roadmap for the regulation of male fertility.
Collapse
Affiliation(s)
- Andrea L. Sposato
- School of Biological Sciences, University of Utah, Salt Lake City, UT 84112
| | | | - Jenna M. Weber
- School of Biological Sciences, University of Utah, Salt Lake City, UT 84112
| | - Hailey L. Hollins
- School of Biological Sciences, University of Utah, Salt Lake City, UT 84112
| | - Madison N. Schrock
- School of Biological Sciences, University of Utah, Salt Lake City, UT 84112
| | - Jeffrey A. Farrell
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, MD 20814
| | - James A. Gagnon
- School of Biological Sciences, University of Utah, Salt Lake City, UT 84112
- Henry Eyring Center for Cell and Genome Science, University of Utah, Salt Lake City, UT 84112
| |
Collapse
|
4
|
Liu X, Wang W, Tan S, Liu H, Li Z, Wang N, Ma J, Han S, Wu Z, Shi K, Sha Z. C5a drives the inflammatory response with bacterial dose effect by binding to C5aR1 in zebrafish infected with Aeromonas hydrophila. Fish Shellfish Immunol 2023; 139:108873. [PMID: 37271327 DOI: 10.1016/j.fsi.2023.108873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 06/01/2023] [Accepted: 06/01/2023] [Indexed: 06/06/2023]
Abstract
The complement system is essential to host defense, but its excessive activation caused by severe pathogen invasion is a driving force in adverse inflammatory. The binding of complement component 5a (C5a) and complement component 5a receptor 1 (C5aR1) is the key to trigger complement-mediated inflammatory response in mammals. However, the role of C5a-C5aR1 axis in fish immune response remains obscure. In this study, the role of C5a-C5aR1 axis of zebrafish (Danio rerio) after serious infection with Aeromonas hydrophila was investigated. C5a and C5aR1 of zebrafish were cloned, with CDS sequences of 228 and 1041 bp, respectively, and they were widely expressed in various tissues with the highest expression in the liver and spleen, respectively. The survival of zebrafish was closely correlated to the dose of A. hydrophila. The cytokine storm occurred at high concentrations of A. hydrophila infection. At 24 h post infection (hpi), the expression of C5a and C5aR1 in the spleen increased 26.8-fold and 9.9-fold in treatment group 1 (TG1, 3.0 × 107 CFU/mL) (P < 0.01), and 4.7-fold and 3.4-fold in treatment group 2 (TG2, 1.0 × 107 CFU/mL) (P < 0.05), respectively. Correspondingly, proinflammatory cytokines interleukin-1β (IL-1β), interleukin-8 (IL-8), and interleukin-17 (IL-17) were positively correlated to C5a and C5aR1 at mRNA and protein expression levels. The expression of IL-1β was significantly increased in the spleen at 6 hpi, with a 599.2-fold and 203.2-fold upregulation in TG1 and TG2 (P < 0.001), respectively. Moreover, after inhibition of C5a-C5aR1 binding treated with C5aR1 antagonist (W-54011), zebrafish showed lower expression of C5a, C5aR1, and cytokines, less intestinal damage, and significantly enhancement of survival (P < 0.05) after A. hydrophila challenge. This study revealed that the inflammatory effect of C5a was achieved by binding to C5aR1 in zebrafish, providing novel insights into using C5a-C5aR1 axis as an effective target to reduce bacterial inflammation and disease in fish.
Collapse
Affiliation(s)
- Xinbao Liu
- Institute of Aquatic Biotechnology, College of Life Sciences, Qingdao University, Qingdao, 266071, China
| | - Wenwen Wang
- Institute of Aquatic Biotechnology, College of Life Sciences, Qingdao University, Qingdao, 266071, China
| | - Suxu Tan
- Institute of Aquatic Biotechnology, College of Life Sciences, Qingdao University, Qingdao, 266071, China
| | - Hongning Liu
- Institute of Aquatic Biotechnology, College of Life Sciences, Qingdao University, Qingdao, 266071, China
| | - Zhujun Li
- Institute of Aquatic Biotechnology, College of Life Sciences, Qingdao University, Qingdao, 266071, China
| | - Ningning Wang
- Institute of Aquatic Biotechnology, College of Life Sciences, Qingdao University, Qingdao, 266071, China; College of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Jie Ma
- Institute of Aquatic Biotechnology, College of Life Sciences, Qingdao University, Qingdao, 266071, China
| | - Sen Han
- Institute of Aquatic Biotechnology, College of Life Sciences, Qingdao University, Qingdao, 266071, China
| | - Zhendong Wu
- Institute of Aquatic Biotechnology, College of Life Sciences, Qingdao University, Qingdao, 266071, China
| | - Kunpeng Shi
- Institute of Aquatic Biotechnology, College of Life Sciences, Qingdao University, Qingdao, 266071, China
| | - Zhenxia Sha
- Institute of Aquatic Biotechnology, College of Life Sciences, Qingdao University, Qingdao, 266071, China.
| |
Collapse
|
5
|
Valcarce DG, Riesco MF, Cuesta-Martín L, Esteve-Codina A, Martínez-Vázquez JM, Robles V. Stress decreases spermatozoa quality and induces molecular alterations in zebrafish progeny. BMC Biol 2023; 21:70. [PMID: 37013516 PMCID: PMC10071778 DOI: 10.1186/s12915-023-01570-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 03/17/2023] [Indexed: 04/05/2023] Open
Abstract
BACKGROUND Chronic stress can produce a severe negative impact on health not only in the exposed individuals but also in their offspring. Indeed, chronic stress may be contributing to the current worldwide scenario of increasing infertility and decreasing gamete quality in human populations. Here, we evaluate the effect of chronic stress on behavior and male reproductive parameters in zebrafish. Our goal is to provide information on the impact that chronic stress has at molecular, histological, and physiological level in a vertebrate model species. RESULTS We evaluated the effects of a 21-day chronic stress protocol covering around three full waves of spermatogenesis in Danio rerio adult males. The induction of chronic stress produced anxiety-like behavior in stressed males as assessed by a novel tank test. At a molecular level, the induction of chronic stress consistently resulted in the overexpression of two genes related to endoplasmic reticulum (ER) stress in the brain. Gene set enrichment analysis (GSEA) of testes suggested a dysregulation of the nonsense-mediated decay (NMD) pathway, which was also confirmed on qPCR analysis. Histological analysis of the testicle did not show significant differences in terms of the relative proportions of each germ-cell type; however, the quality of sperm from stressed males was compromised in terms of motility. RNA-seq analysis in stress-derived larval progenies revealed molecular alterations, including those predicted to affect translation initiation, DNA repair, cell cycle control, and response to stress. CONCLUSIONS Induction of chronic stress during a few cycles of spermatogenesis in the vertebrate zebrafish model affects behavior, gonadal gene expression, final gamete quality, and progeny. The NMD surveillance pathway (a key cellular mechanism that regulates the stability of both normal and mutant transcripts) is severely affected in the testes by chronic stress and therefore the control and regulation of RNAs during spermatogenesis may be affected altering the molecular status in the progeny.
Collapse
Affiliation(s)
- David G Valcarce
- Cell Biology Area, Molecular Biology Department, Universidad de León, Campus de Vegazana s/n, 24071, León, Spain
- Instituto Español de Oceanografía, Centro Oceanográfico de Santander (COST-IEO), CSIC, Calle Severiano Ballesteros 16. 39004, Santander, Spain
| | - Marta F Riesco
- Cell Biology Area, Molecular Biology Department, Universidad de León, Campus de Vegazana s/n, 24071, León, Spain
| | - Leyre Cuesta-Martín
- Cell Biology Area, Molecular Biology Department, Universidad de León, Campus de Vegazana s/n, 24071, León, Spain
| | - Anna Esteve-Codina
- CNAG-CRG, Centre for Genomic Regulation, Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Juan Manuel Martínez-Vázquez
- Instituto Español de Oceanografía, Centro Oceanográfico de Santander (COST-IEO), CSIC, Calle Severiano Ballesteros 16. 39004, Santander, Spain
| | - Vanesa Robles
- Cell Biology Area, Molecular Biology Department, Universidad de León, Campus de Vegazana s/n, 24071, León, Spain.
| |
Collapse
|
6
|
Dai C, Zheng J, Qi L, Deng P, Wu M, Li L, Yuan J. Chronic stress boosts systemic inflammation and compromises antiviral innate immunity in Carassius gibel. Front Immunol 2023; 14:1105156. [PMID: 36814911 PMCID: PMC9939519 DOI: 10.3389/fimmu.2023.1105156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 01/26/2023] [Indexed: 02/08/2023] Open
Abstract
It is generally considered that stress causes decreased immune function and render fish vulnerable to infection and diseases. However, the molecular mechanisms between stress responses and susceptibility to infections, especially viral diseases, in fish remain unknown. Understanding and monitoring the biological consequences and mechanisms underlying stress responses in fish may contribute to the improvement of animal welfare and production efficiency. In this study, long-term exposure to a variety of stressors, including chasing, overcrowding, restraint stress, and air exposure mimicking chronic stresses, in aquaculture practices was conducted in Carassius gibel to investigate the consequences of chronic stress on inflammation and antiviral capability. With the continuation of stimulation, experimental fish gradually became insensitive to the stress of net chasing and feeding with the accompaniment of upregulated gene expressed in the HPI axis and elevated levels of stress hormones. As expected, stress-induced hyperglycaemia with a decrease in the insulin signaling pathway and altered gene expression in glycolysis and gluconeogenesis, suggesting the disturbance of glycometabolism. Importantly, a link between intestinal homoeostasis and systemic low-grade inflammation in stressed C. gibel was observed, implying crosstalk among the brain, intestine, and other organs. Furthermore, the compromised antiviral capability with impaired antiviral innate immunity in stressed fish was confirmed by RNA sequencing and infection with Cyprinid herpesvirus 2 (CyHV-2), promoting the understanding of enhanced susceptibility to viral infection in stressed fish.
Collapse
Affiliation(s)
- Caijiao Dai
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, China
- National Aquatic Animal Diseases Para-reference Laboratory, Huazhong Agricultural University (HZUA), Wuhan, China
| | - Jianduo Zheng
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, China
- Hubei Engineering Research Center for Aquatic Animal Diseases Control and Prevention, Huazhong Agricultural University, Wuhan, China
| | - Lin Qi
- Department of Consultation, Tianbin Ruicheng Environmental Technology Engineering Co., LTD, Tianjin, China
| | - Ping Deng
- Fisheries Science Research Institute, Wuhan Academy of Agricultural Sciences, Wuhan, China
| | - Mengke Wu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Lijuan Li
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, China
- National Aquatic Animal Diseases Para-reference Laboratory, Huazhong Agricultural University (HZUA), Wuhan, China
| | - Junfa Yuan
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, China
- National Aquatic Animal Diseases Para-reference Laboratory, Huazhong Agricultural University (HZUA), Wuhan, China
- Hubei Engineering Research Center for Aquatic Animal Diseases Control and Prevention, Huazhong Agricultural University, Wuhan, China
| |
Collapse
|
7
|
Shi J, Zhuo D, Lu M, Wang H, Gu H, Liu X, Wang Z. Partial immune responses in Sichuan bream ( Sinibrama taeniatus) after starvation. Front Immunol 2023; 14:1098741. [PMID: 36949943 PMCID: PMC10025346 DOI: 10.3389/fimmu.2023.1098741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 02/20/2023] [Indexed: 03/08/2023] Open
Abstract
Background Food deprivation is a severe stress across multiple fields and it might be a challenge to immune system. Methods In the present study, adult male Sinibrama taeniatus were deprived of feed for 7 to 28 days. We explored the effects of starvation on immunity in S. taeniatus through hematological analysis, antioxidant capacity analysis, detection of the content or activity of immune factors in plasma, and transcriptomic analysis. Results The results indicated that biometric indexes significantly decreased in the fish after starvation, the proportion of thrombocyte, neutrophil and monocyte increased and, conversely, the proportion of lymphocyte decreased. The antioxidant indexes (SOD and CAT) and innate immune parameters (LZM, C3) were upregulated in fish suffering from a short period of starvation, while adaptive immune parameter (IgM) conversely declined. The transcriptome analysis revealed the changes of various metabolic regulatory pathways involved in fatty acids and amino acids, as well as the immune responses and antioxidant capacity. Conclusions Taken together, this research in the present study suggested an induced innate immunity while a partly suppressed adaptive immunity under a short period starvation.
Collapse
Affiliation(s)
- Jinfeng Shi
- Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City & Southwest University, Chongqing, China
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, Southwest University, Chongqing, China
- School of Life Sciences, Southwest University, Chongqing, China
| | - Dayou Zhuo
- Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City & Southwest University, Chongqing, China
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, Southwest University, Chongqing, China
- School of Life Sciences, Southwest University, Chongqing, China
| | - Minfang Lu
- Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City & Southwest University, Chongqing, China
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, Southwest University, Chongqing, China
- School of Life Sciences, Southwest University, Chongqing, China
| | - Haoyu Wang
- Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City & Southwest University, Chongqing, China
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, Southwest University, Chongqing, China
- School of Life Sciences, Southwest University, Chongqing, China
| | - Haoran Gu
- Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City & Southwest University, Chongqing, China
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, Southwest University, Chongqing, China
- School of Life Sciences, Southwest University, Chongqing, China
| | - Xiaohong Liu
- Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City & Southwest University, Chongqing, China
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, Southwest University, Chongqing, China
- School of Life Sciences, Southwest University, Chongqing, China
- *Correspondence: Zhijian Wang, ; Xiaohong Liu,
| | - Zhijian Wang
- Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City & Southwest University, Chongqing, China
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, Southwest University, Chongqing, China
- School of Life Sciences, Southwest University, Chongqing, China
- *Correspondence: Zhijian Wang, ; Xiaohong Liu,
| |
Collapse
|
8
|
Fan X, Yan T, Hou T, Xiong X, Feng L, Li S, Wang Z. Mitochondrial changes in fish cells in vitro in response to serum deprivation. Fish Physiol Biochem 2022; 48:869-881. [PMID: 35652993 DOI: 10.1007/s10695-022-01088-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
Mitochondria are critical to cellular activity that implicated in expansive networks to maintain organismal homeostasis under external stimuli of nutrient variability, a common and severe stress to fish performance during the intensive culture conditions. In the present study, zebrafish embryonic fibroblast cells were used to investigate the fish mitochondrial changes upon serum deprivation. Results showed that mitochondrial content and membrane potential were significantly reduced with increased intracellular ROS level in the serum deprivation treated fish cells. And the impaired mitochondria were characterized by rough and fracted outer membrane, and more fused mitochondria were frequently observed with the upregulated mRNA expressions of mitochondrial fusion genes (mfn1b, mfn2, and opa1). Besides, the mitochondrial DNA (mtDNA) copy numbers of mtatp6, mtcox1, mtcytb, mtnd4, and mtnd6 were overall showing the highly significant reduction, together with the mRNA expressions of these genes significantly increased, exhibiting the compensatory effects in mitochondria. Furthermore, the methyl-cytosine of whole mtDNA was compared and the methyl-reads numbers were distinctly increased in the treatment group, reflecting the instability of fish mtDNA with mitochondrial dysfunction under nutrient fluctuations. Collectively, current findings could facilitate the integrated research between fish mitochondrial response and external variables that indicates the potentially profound and durative deficits in fish health during the aquaculture processes.
Collapse
Affiliation(s)
- Xiaoteng Fan
- College of Animal Science and Technology, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Tao Yan
- College of Animal Science and Technology, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Tingting Hou
- College of Animal Science and Technology, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Xiaofan Xiong
- College of Animal Science and Technology, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Leilei Feng
- College of Animal Science and Technology, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Shiyi Li
- College of Animal Science and Technology, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Zaizhao Wang
- College of Animal Science and Technology, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China.
| |
Collapse
|
9
|
Li Y, Wang R, Li Y, Sun G, Mo H. Protective effects of tree peony seed protein hydrolysate on Cd-induced oxidative damage, inflammation and apoptosis in zebrafish embryos. Fish Shellfish Immunol 2022; 126:292-302. [PMID: 35654387 DOI: 10.1016/j.fsi.2022.05.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 05/18/2022] [Accepted: 05/18/2022] [Indexed: 06/15/2023]
Abstract
The objective of this study was to investigate protective effects of tree peony seed protein hydrolysate by Alcalase (AL-TPSPH) on oxidative damage, inflammation and apoptosis using Cd-induced zebrafish embryos. Zebrafish embryos were treated with either Cd (2 μg/L) or AL-TPSPH (25, 50 and 75 μg/mL) alone or in combination of both from 4 to 144 h post fertilization (hpf). The effects of these treatments on developments, antioxidant parameters and mRNA expression of genes related to oxidative damage, inflammation and apoptosis were examined. The results showed that co-treatment with Cd and AL-TPSPH significantly increased hatching and survival rates and decreased malformation rates of zebrafish embryos compared with Cd treatment alone group (P < 0.05). Cd-induced increase of MDA content, decreases of T-AOC content, GSH/GSSG ratio and activities of SOD, CAT and GPx in zebrafish embryos were modified upon treatment with AL-TPSPH. AL-TPSPH treatment significantly suppressed Cd-induced down-regulations of the antioxidant gene expressions (Mn-sod, Cat and GPx1a) in zebrafish embryos (P < 0.05). AL-TPSPH also prevented Cd-induced up-regulations of pro-inflammatory cytokine (TNF-α, IL-1β and IFN-γ) expressions. Moreover, AL-TPSPH inhibited Cd-induced up-regulations of pro-apoptotic genes (C-jun, Caspase-3 and Caspase-9) in zebrafish embryos. Collectively, these results indicated that AL-TPSPH could reduce Cd-induced oxidative damage, inflammation and apoptosis in zebrafish embryos, suggesting its future applications as functional food or pharmaceutical ingredient.
Collapse
Affiliation(s)
- Yan Li
- School of Food Science & Engineering, Qilu University of Technology (Shandong Academy of Sciences), No. 3501 University Road of Changqing District, Jinan, 250353, China
| | - Ruixue Wang
- School of Food Science & Engineering, Qilu University of Technology (Shandong Academy of Sciences), No. 3501 University Road of Changqing District, Jinan, 250353, China
| | - Yingqiu Li
- School of Food Science & Engineering, Qilu University of Technology (Shandong Academy of Sciences), No. 3501 University Road of Changqing District, Jinan, 250353, China.
| | - Guijin Sun
- School of Food Science & Engineering, Qilu University of Technology (Shandong Academy of Sciences), No. 3501 University Road of Changqing District, Jinan, 250353, China.
| | - Haizhen Mo
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an, 453003, China
| |
Collapse
|
10
|
Shinde D, Ganesh CB. Chronic exposure to aquacultural stressors affects pituitary-testis axis in the Mozambique tilapia Oreochromis mossambicus. Fish Physiol Biochem 2022; 48:437-448. [PMID: 35201519 DOI: 10.1007/s10695-022-01061-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 02/12/2022] [Indexed: 06/14/2023]
Abstract
Reproduction in fish is modulated by several factors that include environmental and endocrine components. The aim of this study was to elucidate the effect of aquacultural stressors along the pituitary-testis axis in a continuously breeding cichlid fish Oreochromis mossambicus. The fish (35.05 ± 2.20 g) were divided into three groups (n = 10 in each group, n = 5 in each replicate), namely initial controls (euthanized on the day of initiation of experiment), time-matched controls (kept undisturbed), and stressed fish, which were subjected to different kinds of randomized aquacultural stressors such as handling, chasing, frequent netting, and low water levels, daily for a period of 21 days. Although the gonadosomatic index and the mean numbers of spermatogonia-A and spermatogonia-B did not differ significantly among different experimental groups, significant decrease was observed in the mean numbers of primary spermatocytes, secondary spermatocytes, early spermatids, and late spermatids in fish exposed to stressors compared to those of initial controls and time-matched controls. While the diameter of the seminiferous lobule was significantly lower, the size of the lumen and the serum levels of cortisol were significantly increased in stressed fish compared with initial controls and time-matched controls. Furthermore, weak androgen receptor immunoreactivity was observed in the Sertoli cells of the testis in contrast to the strongly immunoreactive androgen receptors in initial controls and time-matched controls. Concomitant with this, there was a significant decrease in the percent area and the intensity of luteinizing hormone (LH) immunoreactive content in the proximal pars distalis (PPD) region of the pituitary gland in stressed fish compared with initial controls and time-matched controls. Overall, these results suggest that exposure to chronic aquacultural stressors causes suppression of LH synthesis in the pituitary gland concomitant with decreased androgen receptor expression and blockade of recruitment of germline cells at the meiosis stage. This inhibition appears to be mediated through the hypothalamic-pituitary-interrenal axis in the tilapia O. mossambicus.
Collapse
Affiliation(s)
- Deepak Shinde
- Department of Studies in Zoology, Karnatak University, Dharwad, 580 003, India
| | - C B Ganesh
- Department of Studies in Zoology, Karnatak University, Dharwad, 580 003, India.
| |
Collapse
|
11
|
Sakae Y, Tanaka M. Metabolism and Sex Differentiation in Animals from a Starvation Perspective. Sex Dev 2021; 15:168-178. [PMID: 34284403 DOI: 10.1159/000515281] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 02/12/2021] [Indexed: 11/19/2022] Open
Abstract
Animals determine their sex genetically (GSD: genetic sex determination) and/or environmentally (ESD: environmental sex determination). Medaka (Oryzias latipes) employ a XX/XY GSD system, however, they display female-to-male sex reversal in response to various environmental changes such as temperature, hypoxia, and green light. Interestingly, we found that 5 days of starvation during sex differentiation caused female-to-male sex reversal. In this situation, the metabolism of pantothenate and fatty acid synthesis plays an important role in sex reversal. Metabolism is associated with other biological factors such as germ cells, HPG axis, lipids, and epigenetics, and supplys substances and acts as signal transducers. In this review, we discuss the importance of metabolism during sex differentiation and how metabolism contributes to sex differentiation.
Collapse
Affiliation(s)
- Yuta Sakae
- Division of Biological Science, Graduate School of Science, Nagoya University, Nagoya, Japan
| | - Minoru Tanaka
- Division of Biological Science, Graduate School of Science, Nagoya University, Nagoya, Japan
| |
Collapse
|