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Pan M, Luo X, Zhang Z, Li J, Shahzad K, Danba Z, Caiwang G, Chilie W, Chen X, Zhao W. The expression spectrum of yak epididymal epithelial cells reveals the functional diversity of caput, corpus and cauda regions. Genomics 2024; 116:110912. [PMID: 39117249 DOI: 10.1016/j.ygeno.2024.110912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 07/25/2024] [Accepted: 08/06/2024] [Indexed: 08/10/2024]
Abstract
Sperm undergo a series of changes in the epididymis region before acquiring the ability to move and fertilize, and the identification of genes expressed in a region-specific manner in the epididymis provides a valuable insight into functional differences between regions. We collected epididymal tissue from three yaks and cultured epithelial cells from the caput, corpus and cauda regions of the yak epididymis using the tissue block method. RNA sequencing analysis (RNA-seq) technology was used to detect gene expression in yak epididymal caput, corpus and cauda epithelial cells. The results showed that the DEGs were highest in the caput vs. corpus comparison, and lowest in the corpus vs. cauda comparison. Six DEGs were verified by real-time fluorescence quantitative PCR (qRT-PCR), consistent with transcriptome sequencing results. The significantly enriched DNA replication pathway in the caput vs. corpus was coordinated with cell proliferation, while upregulated DEGs such as POLD1 and MCM4 were found in the DNA replication pathway. The AMPK signaling pathway was found significantly enriched in the caput vs cauda, suggesting its involvement in sperm maturation and capacitation. The TGF beta signaling pathway was screened in the corpus vs cauda and is crucial for mammalian reproductive regulation. Upregulated DEGs (TGFB3, INHBA, INHBB) are involved in the TGF beta signaling pathway. This study provides a reference for culturing yak epididymal epithelial cells in vitro, and elucidates the transcriptional profiles of epithelial cells in different segments of the epididymis, revealing the regulatory and functional differences between different segments, providing basic data for exploring the molecular mechanism of yak sperm maturation and improving the reproductive capacity of high-altitude mammals.
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Affiliation(s)
- Meilan Pan
- College of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan 621000, China
| | - Xiaofeng Luo
- College of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan 621000, China
| | - Zhenzhen Zhang
- College of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan 621000, China
| | - Jingjing Li
- College of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan 621000, China
| | - Khuram Shahzad
- Department of Biosciences, COMSATS University Islamabad, Park Road, Islamabad 45550, Pakistan
| | - Zhaxi Danba
- Science and Technology Research and Promotion Center, Agricultural and Animal Husbandry (Grass Industry), Naqu, Tibet 852200, China
| | - Gongbu Caiwang
- Tibet Naqu Municipal Agriculture and Rural Affairs Bureau, Naqu, Tibet 852000, China
| | - Wangmu Chilie
- Science and Technology Research and Promotion Center, Agricultural and Animal Husbandry (Grass Industry), Naqu, Tibet 852200, China
| | - Xiaoying Chen
- Institute of Animal Science, Tibet Academy of Agricultural and Animal Husbandry Science, Lhasa 850009, China.
| | - Wangsheng Zhao
- College of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan 621000, China.
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Ma Q, Fan Y, Cui Y, Luo Z, Kang H. A Preliminary Study on Quantitative Analysis of Collagen and Apoptosis Related Protein on 1064 nm Laser-Induced Skin Injury. BIOLOGY 2024; 13:217. [PMID: 38666829 PMCID: PMC11048553 DOI: 10.3390/biology13040217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/18/2024] [Accepted: 03/22/2024] [Indexed: 04/28/2024]
Abstract
To investigate the associated factors concerning collagen and the expression of apoptosis-related proteins in porcine skin injuries induced by laser exposure, live pig skin was irradiated at multiple spots one time, using a grid-array method with a 1064 nm laser at different power outputs. The healing process of the laser-treated areas, alterations in collagen structure, and changes in apoptosis were continuously observed and analyzed from 6 h to 28 days post-irradiation. On the 28th day following exposure, wound contraction and recovery were notably sluggish in the medium-high dose group, displaying more premature and delicate type III collagen within the newly regenerated tissues. The collagen density in these groups was roughly 37-58% of that in the normal group. Between days 14 and 28 after irradiation, there was a substantial rise in apoptotic cell count in the forming epidermis and granulation tissue of the medium-high dose group, in contrast to the normal group. Notably, the expression of proapoptotic proteins Bax, caspase-3, and caspase-9 surged significantly 14 days after irradiation in the medium-high dose group and persisted at elevated levels on the 28th day. During the later stage of wound healing, augmented apoptotic cell population and insufficient collagen generation in the newly generated skin tissue of the medium-high dose group were closely associated with delayed wound recovery.
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Affiliation(s)
- Qiong Ma
- Beijing Institute of Radiation Medicine, Beijing 100850, China; (Q.M.); (Y.C.)
| | - Yingwei Fan
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, China;
| | - Yufang Cui
- Beijing Institute of Radiation Medicine, Beijing 100850, China; (Q.M.); (Y.C.)
| | - Zhenkun Luo
- Beijing Institute of Radiation Medicine, Beijing 100850, China; (Q.M.); (Y.C.)
| | - Hongxiang Kang
- Beijing Institute of Radiation Medicine, Beijing 100850, China; (Q.M.); (Y.C.)
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3
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Fan Y, Li X, Li Q, Zhou L, He J, Lei H, Su J. Effect of Trimethyltin chloride on proliferation and cell cycle of intestinal porcine epithelial cells. Comp Biochem Physiol C Toxicol Pharmacol 2021; 249:109131. [PMID: 34246797 DOI: 10.1016/j.cbpc.2021.109131] [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] [Received: 03/01/2021] [Revised: 06/19/2021] [Accepted: 07/04/2021] [Indexed: 11/29/2022]
Abstract
Trimethyltin chloride (TMT) is a highly toxic substance produced by organotin heat stabilizers in the synthesis of polyvinyl chloride (PVC) products. TMT is widely used in industry and agriculture. The aim of this study was to investigate the effects of TMT-induced cytotoxicity in intestinal porcine epithelial cells (IPEC-J2). Our study showed that TMT induced a decline in cell viability of IPEC-J2, caused cell shrinkage and rounded cell morphology, reduced the number of proliferating cells and the expression of proliferating cell nuclear antigen (PCNA), and increased lactate dehydrogenase (LDH) activity in cell supernatants. Simultaneously, TMT lowered the mRNA expression of Cyclin B1, and Cyclin D1, but increased P21 and P27 expression. The cell cycle progression was arrested from the G1 to the S phase. Furthermore, the mRNA expression of Bax/Bcl-2 ratio and the protein expression of cleaved Caspase-9 and cleaved Caspase-3 were significantly increased after TMT treatment, while the ratio of advanced apoptotic cells was elevated. These results indicated that TMT blocked the cell cycle, inhibited IPEC-J2 proliferation, and induced apoptosis.
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Affiliation(s)
- Ying Fan
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, Hunan, China
| | - Xue Li
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, Hunan, China
| | - Qing Li
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, Hunan, China
| | - Lihua Zhou
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, Hunan, China
| | - Jian He
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, Hunan, China
| | - Hongyu Lei
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, Hunan, China.
| | - Jianming Su
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, Hunan, China.
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Azari M, Kafi M, Asaadi A, Pakniat Z, Abouhamzeh B. Bovine oocyte developmental competence and gene expression following co-culturing with ampullary cells: An experimental study. Int J Reprod Biomed 2021; 19:371-380. [PMID: 33997596 PMCID: PMC8106812 DOI: 10.18502/ijrm.v19i4.9063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 08/09/2020] [Accepted: 09/30/2020] [Indexed: 11/24/2022] Open
Abstract
Background There is no sufficient information on the impact of bovine ampullary oviductal epithelial cells (BAOECs) on in vitro oocyte maturation competence and gene expression. Objective This study aimed to examine the oocyte developmental competence following co-culturing with a monolayer of fresh and frozen-thawed ampullary cells. Materials and Methods Bovine cumulus-oocyte complexes (COCs) were distributed into three groups: control group; where in COCs were cultured in cell-free media for 24 hr and FML and FTML groups in which the COCs were cultured in maturation media for 18 hr and then transferred into a media containing fresh and frozen-thawed BAOECs monolayer, respectively (BAOECs were extracted from the oviducts of slaughtered cattle and were then cultured freshly or frozen-thawed) for a further 6 hr. After 24 hr, the expanded COCs were evaluated for nuclear maturation, fertilization rate, and gene expression (GDF9, StAR, CASP3, and FSHr). Results Nuclear maturation rate in the FTML group was significantly higher than the control group (p = 0.02). The fertilization rate of FTML group was significantly higher than the control and FML groups (p = 0.05 and p = 0.03, respectively). In terms of gene expression, GDF9 were upregulated in the presence of the BAOECs during the last 6 hr of the in vitro maturation (p < 0.001). Furthermore, the expression of the StAR gene in the FTML group was higher than the other groups (p = 0.02). Conclusion Ampullary cells co-culturing (especially frozen-thawed cells) for in vitro maturation of bovine oocytes yields encourages the results and demonstrates the beneficial effect of co-culture on gene expression and developmental competence.
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Affiliation(s)
- Mehdi Azari
- Department of Anatomical Sciences, School of Medicine, AJA University of Medical Sciences, Tehran, Iran.,Department of Animal Reproduction, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Mojtaba Kafi
- Department of Animal Reproduction, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Anise Asaadi
- Department of Animal Reproduction, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Zohreh Pakniat
- Department of Animal Reproduction, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Beheshteh Abouhamzeh
- Department of Anatomical Sciences, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
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Hu X, Cai J, Zhu J, Lang W, Zhong J, Zhong H, Chen F. Modulation of FLT3 through decitabine-activated C/EBPa-PU.1 signal pathway in FLT3-ITD positive cells. Cell Signal 2019; 64:109409. [PMID: 31479709 DOI: 10.1016/j.cellsig.2019.109409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 08/29/2019] [Accepted: 08/30/2019] [Indexed: 11/24/2022]
Abstract
FMS-like tyrosine kinase 3 (FLT3)-mutant acute myeloid leukemia (AML) which occurs in approximately 30% of all AML patients still has a poor prognosis. This study aimed to examine the effect of decitabine (DAC) on FLT3-ITD positive AML. In our study, we found that expression of FLT3 and its downstream targets was decreased in FLT3-ITD mutant cell lines treated with DAC. DAC treatment could increase the percentage of apoptotic cells and CD11b positive cells tested by flow cytometry and upregulate the expression of cleaved caspase3, cleaved PARP, C/EBPa and PU.1 detected by western blot. To explore the effect of increased expression of PU.1 on FLT3 protein, we transiently transfected MOLM13 and MV4-11 cells with siRNA against PU.1 and a siRNA control. In both FLT3-ITD positive cells, the effect of DAC on downregulation of FLT3 was diminished in PU.1-konckdown MOLM13 and MV4-11 cells and there was a decrease of CD11b expression after PU.1 knockdown. Furthermore, the percentage of apoptotic cells was also decreased in PU.1-konckdown cells compared with siRNA control-expressing cells with the same dose of DAC. These findings indicated that DAC upregulated PU.1 to induce downregulation of FLT3 to trigger apoptosis. DAC was also found efficacious in mouse xenograft models of FLT3-ITD AML in our study. These findings may provide a novel theoretical basis for treatment of FLT3-ITD positive AML patients.
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Affiliation(s)
- Xiaoli Hu
- Department of Hematology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Jiayi Cai
- Department of Hematology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Jianyi Zhu
- Department of Hematology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Wenjing Lang
- Department of Hematology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Jihua Zhong
- Department of Hematology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Hua Zhong
- Department of Hematology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Fangyuan Chen
- Department of Hematology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China..
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Xia D, Wu J, Xing M, Wang Y, Zhang H, Xia Y, Zhou P, Xu S. Iron overload threatens the growth of osteoblast cells via inhibiting the PI3K/AKT/FOXO3a/DUSP14 signaling pathway. J Cell Physiol 2019; 234:15668-15677. [PMID: 30693516 DOI: 10.1002/jcp.28217] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 01/16/2019] [Indexed: 01/24/2023]
Abstract
Iron overload is a common stress in the development of cells. Growing evidence has indicated that iron overload is associated with osteoporosis. Therefore, enhancing the understanding of iron overload would benefit the development of novel approaches to the treatment of osteoporosis. The purpose of the present study was to analyze the effect of iron overload on osteoblast cells, via the MC3T3-E1 cell line, and to explore its possible underlying molecular mechanisms. Ferric ammonium citrate (FAC) was utilized to simulate iron overload conditions in vitro. FAC-induced iron overload strongly suppressed proliferation of osteoblast cells and induced apoptosis. Moreover, iron overload strongly suppressed the expression of dual-specificity phosphatase 14 (DUSP14). Additionally, overexpression of DUSP14 protected osteoblast cells from the deleterious effects of iron overload, and this protective effect was mediated by FOXO3a. Additionally, matrine rescued the function of DUSP14 in osteoblast cells. Most importantly, our analysis demonstrated the essential role of the PI3K/AKT/FOXO3a/DUSP14 signaling pathway in the defense against iron overload in osteoblast cells. Overall, our results not only elucidate deleterious effects of iron overload, but also unveil its possible signaling pathway in osteoblast cells.
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Affiliation(s)
- Demeng Xia
- Department of Emergency, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Jianghong Wu
- Department of Emergency, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Malcolm Xing
- Department of Mechanical Engineering, University of Manitoba, Winnipeg, Canada
| | - Yang Wang
- Department of Emergency, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Hongyue Zhang
- Department of Emergency, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Yan Xia
- Department of Emergency, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Panyu Zhou
- Department of Emergency, Changhai Hospital, Second Military Medical University, Shanghai, China.,Department of Orthopedics, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Shuogui Xu
- Department of Emergency, Changhai Hospital, Second Military Medical University, Shanghai, China.,Department of Orthopedics, Changhai Hospital, Second Military Medical University, Shanghai, China
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Wang L, Li C, Huang Q, Fu X. Biofunctionalization of selenium nanoparticles with a polysaccharide from Rosa roxburghii fruit and their protective effect against H 2O 2-induced apoptosis in INS-1 cells. Food Funct 2019; 10:539-553. [PMID: 30662993 DOI: 10.1039/c8fo01958d] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Defective glucose-stimulated insulin secretion (GSIS) induced by chronic exposure to reactive oxygen species (ROS) is a hallmark of type 2 diabetes mellitus (T2DM). Therefore, it is of great interest to search for biofunctional agents with antioxidant activity to protect pancreatic islet cells from oxidative damage. In the present study, selenium nanoparticles (SeNPs) functionalized with a novel polysaccharide (RTFP-3) extracted from Rosa roxburghii fruit were first prepared via a facile, single-step and green in situ synthesis method. The in vitro protective effects of RP3-SeNPs on INS-1 cells against H2O2-induced cell apoptosis were investigated. Structural characterization indicated that RTFP-3-functionalized SeNPs (RP3-SeNPs) with an average diameter of 104.5 nm were highly uniform and extremely stable in comparison with bare SeNPs. The results of bioassays revealed that RP3-SeNPs possessed much higher protective and suppressive activities against H2O2-induced apoptosis of INS-1 cells in comparison with their individual components. After treatment with an RP3-SeNPs solution (2 μg mL-1), the cell viability of INS-1 cells reached about 89.34%. Mechanistic studies demonstrated that RP3-SeNPs effectively blocked the overproduction of intracellular ROS, mitochondrial damage, and the activation of caspase-3, caspase-8, and caspase-9 in INS-1 cells, which indicated that RP3-SeNPs functioned via attenuating oxidative stress and downregulating the expression of uncoupling protein-2 (UCP-2). Our findings suggest that RP3-SeNPs can function as a promising candidate to prevent or limit the dysfunction of β-cells.
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Affiliation(s)
- Lei Wang
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China.
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