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Sun F, Zhao J, Zhang H, Shi Q, Liu Y, Robert A, Liu Q, Meunier B. Proteomics Evidence of the Role of TDMQ20 in the Cholinergic System and Synaptic Transmission in a Mouse Model of Alzheimer's Disease. ACS Chem Neurosci 2022; 13:3093-3107. [PMID: 36221993 DOI: 10.1021/acschemneuro.2c00455] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The interaction between copper ions and amyloid peptide Aβ has been reported to be involved in Alzheimer's disease (AD) pathology. Based on copper coordination biochemistry, we designed specific copper chelators [tetradentate monoquinolines (TDMQs)] in order to regulate copper homeostasis in the AD brain and inhibit the deleterious oxidative stress catalyzed by copper-Aβ complexes. We previously reported that TDMQ20, a highly selective copper chelator selected as a drug candidate, was able to extract copper from the Cu-Aβ1-16 complex and restore cognitive and behavioral deficits in AD mouse models. For a better understanding of the mechanism of action of TDMQ20, we decided to investigate the change of profile of proteins expressed in 5xFAD mice after an oral treatment of TDMQ20 (dose = 10 mg/kg, once every two days for 3 months, in total 45 times). Clioquinol (CQ), a non-specific chelator, has been used as a comparator. Here, we report the proteomic alterations in the cortex of 5xFAD mice using iTRAQ (isobaric tags for relative and absolute quantification) proteomics technology. The results indicated that 178 differentially expressed proteins (DEPs) have been identified in the AD mouse group with respect to wild type (WT) animals (AD/WT). After treatment by TDMQ20, 35 DEPs were found common in AD/WT and TDMQ20/AD groups in an opposite change manner (up- or down-regulated, respectively). In addition, among the 35 DEPs mentioned above, 10 common target proteins have been identified in AD/WT, TDMQ20/AD, and CQ/AD groups, among which 3 target proteins were successfully validated by western blot analysis. In particular, the expression levels of ChAT and CHRM4 are significantly increased upon TDMQ20 treatment with respect to 5xFAD mice, while CQ did not significantly change the expression of these proteins. Our study suggests the involvement of the copper chelator TDMQ20 on the cholinergic system, a feature that may explain the improved cognitive and behavioral performance in AD mice upon oral treatment of TDMQ20.
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Affiliation(s)
- Fanfan Sun
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences & Oceanography, Shenzhen University, 1066 Xueyuan Boulevard, Nanshan District, Shenzhen 518055, P. R. China.,Key Laboratory of Optoelectronic Devices and System of Ministry of Education and Guangdong Province, College Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Jie Zhao
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences & Oceanography, Shenzhen University, 1066 Xueyuan Boulevard, Nanshan District, Shenzhen 518055, P. R. China.,Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Zhejiang University City College, Hangzhou 310015, China
| | - Huajie Zhang
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences & Oceanography, Shenzhen University, 1066 Xueyuan Boulevard, Nanshan District, Shenzhen 518055, P. R. China
| | - Qihui Shi
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences & Oceanography, Shenzhen University, 1066 Xueyuan Boulevard, Nanshan District, Shenzhen 518055, P. R. China
| | - Yan Liu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology (GDUT), Higher Education Mega Center, 100 Waihuan Xi Road, Panyu District, Guangzhou 510006, P. R. China
| | - Anne Robert
- Laboratoire de Chimie de Coordination du CNRS (LCC-CNRS) and Inserm ERL 1289, 205 route de Narbonne, Toulouse 31077 cedex 4, France
| | - Qiong Liu
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences & Oceanography, Shenzhen University, 1066 Xueyuan Boulevard, Nanshan District, Shenzhen 518055, P. R. China.,Key Laboratory of Optoelectronic Devices and System of Ministry of Education and Guangdong Province, College Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.,Shenzhen-Hong Kong Institute of Brain Science, Shenzhen 518033, China
| | - Bernard Meunier
- School of Chemical Engineering and Light Industry, Guangdong University of Technology (GDUT), Higher Education Mega Center, 100 Waihuan Xi Road, Panyu District, Guangzhou 510006, P. R. China.,Laboratoire de Chimie de Coordination du CNRS (LCC-CNRS) and Inserm ERL 1289, 205 route de Narbonne, Toulouse 31077 cedex 4, France
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Xu X, Liu Y, Luan J, Liu R, Wang Y, Liu Y, Xu A, Zhou B, Han F, Shang W. Effect of downregulated citrate synthase on oxidative phosphorylation signaling pathway in HEI-OC1 cells. Proteome Sci 2022; 20:14. [PMID: 36071491 PMCID: PMC9450364 DOI: 10.1186/s12953-022-00196-0] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 08/27/2022] [Indexed: 11/13/2022] Open
Abstract
Background Citrate Synthase (Cs) gene mutation (locus ahL4) has been found to play an important role in progressive hearing loss of A/J mice. HEI-OC1 cells have been widely used as an in vitro system to study cellular and molecular mechanisms related to hearing lose. We previously reported the increased apoptosis and the accumulation of reactive oxygen species in shRNACs-1429 cells, a Cs low-expressed cell model from HEI-OCI. The details of the mechanism of ROS production and apoptosis mediated by the abnormal expression of Cs needed to research furtherly. Methods iTRAQ proteomics was utilized to detect the differentially expressed proteins (DEPs) caused by low expression of Cs. The GO and KEGG pathways analysis were performed for annotation of the differentially expressed proteins. Protein–protein interaction network was constructed by STRING online database. Immunoblotting was utilized to confirm the protein levels of the the differentially expressed proteins. Results The differentially expressed proteins were significantly enriched in various signaling pathways mainly related to mitochondrial dysfunction diseases including Parkinson’s disease, Alzheimer’s disease, Huntington’s disease, et al. Most noteworthy, the oxidative phosphorylation pathway was most significantly suppressed in the shRNACs-1429 cells,, in which a total of 10 differentially expressed proteins were enriched and were all downregulated by the abnormal expression of Cs. The downregulations of Ndufb5, Ndufv1 and Uqcrb were confirmed by immunoblotting. Meanwhile, the ATP levels of shRNACs-1429 cells were also reduced. Conclusions These results suggest that low level expression of Cs induces the inhibition of oxidative phosphorylation pathway, which is responsible for the high level production of reactive oxygen species and low level of ATP, leading to the apoptosis of cochlear cells. This study may provide new theories for understanding and therapy of progressive hearing loss. Supplementary Information The online version contains supplementary material available at 10.1186/s12953-022-00196-0.
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Affiliation(s)
- Xiaowen Xu
- Key Laboratory for Genetic Hearing Disorders in Shandong, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, People's Republic of China.,Department of Otolaryngology, Yantai Affiliated Hospital of Binzhou Medical University, 717 Jinbu Road of Muping District, Yantai, 264100, Shandong, People's Republic of China
| | - Yue Liu
- Key Laboratory for Genetic Hearing Disorders in Shandong, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, People's Republic of China.,Department of anesthesiology, Yantai Affiliated Hospital of Binzhou Medical University, 717 Jinbu Road of Muping District, Yantai, 264100, Shandong, People's Republic of China
| | - Jun Luan
- Key Laboratory for Genetic Hearing Disorders in Shandong, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, People's Republic of China.,Department of Biochemistry and Molecular Biology, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, People's Republic of China
| | - Rongrong Liu
- Key Laboratory for Genetic Hearing Disorders in Shandong, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, People's Republic of China
| | - Yan Wang
- Key Laboratory for Genetic Hearing Disorders in Shandong, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, People's Republic of China.,Department of Biochemistry and Molecular Biology, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, People's Republic of China
| | - Yingying Liu
- Key Laboratory for Genetic Hearing Disorders in Shandong, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, People's Republic of China.,Department of Biochemistry and Molecular Biology, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, People's Republic of China
| | - Ang Xu
- Key Laboratory for Genetic Hearing Disorders in Shandong, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, People's Republic of China.,Department of Otolaryngology, Yantai Affiliated Hospital of Binzhou Medical University, 717 Jinbu Road of Muping District, Yantai, 264100, Shandong, People's Republic of China
| | - Bingxin Zhou
- Key Laboratory for Genetic Hearing Disorders in Shandong, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, People's Republic of China.,Department of Biochemistry and Molecular Biology, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, People's Republic of China
| | - Fengchan Han
- Key Laboratory for Genetic Hearing Disorders in Shandong, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, People's Republic of China. .,Department of Biochemistry and Molecular Biology, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, People's Republic of China.
| | - Wenjing Shang
- Key Laboratory for Genetic Hearing Disorders in Shandong, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, People's Republic of China. .,Department of Biochemistry and Molecular Biology, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, People's Republic of China.
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Yan J, Fang X, Feng Y, Cui X, Li F, Luo W, Ma X, Liang J, Feng J. Identification of key genes associated with the progression of liver fibrosis to hepatocellular carcinoma based on iTRAQ proteomics and GEO database. Ann Hepatol 2022; 27:100681. [PMID: 35124283 DOI: 10.1016/j.aohep.2022.100681] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 01/28/2022] [Accepted: 01/31/2022] [Indexed: 02/04/2023]
Abstract
INTRODUCTION AND OBJECTIVE Liver fibrosis (LF) often leads to cirrhosis and even hepatocellular carcinoma (HCC), but the molecular mechanism remains unclear. The aims of the present study were to identify potential biomarkers for the progression of LF to HCC and explore the associated molecular mechanisms. MATERIALS AND METHODS The isobaric tags for relative and absolute quantitation (iTRAQ) was used to detect changes in the protein expression profiles of liver tissues and to screen the differentially expressed proteins (DEPs). The differentially expressed genes (DEGs) of LF rats and patients were screened by Gene Expression Database (GEO). Subsequently, the clinicopathological analysis of the overlapping genes in different pathological stages in HCC patients based on GEPIA database was conducted. RESULTS iTRAQ proteomic analysis revealed 689, 749 and 585 DEPs in the 6W, 8W and 12W groups, respectively. ALDH2, SLC27A5 and ASNS were not only the DEPs found in rats with LF with different stages but were also the DEGs related to the pathological stages and survival in patients with HCC. CONCLUSIONS ALDH2, SLC27A5 and ASNS were the potential biomarkers associated with the progression of LF to HCC.
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Affiliation(s)
- Jiongyi Yan
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Xuewan Fang
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Yinyi Feng
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Xiaojuan Cui
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Fang Li
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Weisheng Luo
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Xiaocong Ma
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Jianqin Liang
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530200, China; Guangxi Superior Proprietary Chinese Medicine and Ethnic Medicine Development Engineering Technology Research Centre, Guangxi University of Chinese Medicine, Nanning 530200, China.
| | - Jianfang Feng
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530200, China; Guangxi Superior Proprietary Chinese Medicine and Ethnic Medicine Development Engineering Technology Research Centre, Guangxi University of Chinese Medicine, Nanning 530200, China.
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Zhu B, Kang Z, Zhu S, Zhang Y, Lai X, Zhou L, Huang H, Gao X, Jiang C, Zeng J. Multi-Omics Characterization of Circular RNA-Encoded Novel Proteins Associated With Bladder Outlet Obstruction. Front Cell Dev Biol 2022; 9:772534. [PMID: 35071227 PMCID: PMC8777291 DOI: 10.3389/fcell.2021.772534] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 11/30/2021] [Indexed: 11/13/2022] Open
Abstract
Bladder outlet obstruction (BOO) is a common urologic disease associated with poorly understood molecular mechanisms. This study aimed to investigate the possible involvements of circRNAs (circular RNAs) and circRNA-encoded proteins in BOO development. The rat BOO model was established by the partial bladder outlet obstruction surgery. Differential expression of circRNA and protein profiles were characterized by deep RNA sequencing and iTRAQ quantitative proteomics respectively. Novel proteins encoded by circRNAs were predicted through ORF (open reading frame) selection using the GETORF software and verified by the mass spectrometry in proteomics, combined with the validation of their expressional alterations by quantitative RT-PCR. Totally 3,051 circRNAs were differentially expressed in bladder tissues of rat BOO model with widespread genomic distributions, including 1,414 up-regulated, and 1,637 down-regulated circRNAs. Our following quantitative proteomics revealed significant changes of 85 proteins in rat BOO model, which were enriched in multiple biological processes and signaling pathways such as the PPAR and Wnt pathways. Among them, 21 differentially expressed proteins were predicted to be encoded by circRNAs and showed consistent circRNA and protein levels in rat BOO model. The expression levels of five protein-encoding circRNAs were further validated by quantitative RT-PCR and mass spectrometry. The circRNA and protein profiles were substantially altered in rat BOO model, with great expressional changes of circRNA-encoded novel proteins.
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Affiliation(s)
- Baoyi Zhu
- Department of Urology, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Zhanfang Kang
- Department of Basic Medical Research, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Sihua Zhu
- Department of Urology, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Yuying Zhang
- Department of Urology, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Xiangmao Lai
- Department of Urology, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Lilin Zhou
- Department of Urology, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Hai Huang
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiaofeng Gao
- Department of Urology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Chonghe Jiang
- Department of Urology, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Jianwen Zeng
- Department of Urology, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
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Liu J, Sun C, Zhai FF, Li Z, Qian Y, Gu L, Sun Z. Proteomic insights into the photosynthetic divergence between bark and leaf chloroplasts in Salix matsudana. Tree Physiol 2021; 41:2142-2152. [PMID: 33987679 DOI: 10.1093/treephys/tpab055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 02/29/2020] [Accepted: 04/07/2021] [Indexed: 06/12/2023]
Abstract
Bark chloroplasts play important roles in carbon balancing by recycling internal stem CO2 into assimilated carbon. The photosynthetic response of bark chloroplasts to interior stem environments has been studied recently in woody plants. However, the molecular regulatory mechanisms underlying specific characteristics of bark photosynthesis remain unclear. To address this knowledge gap, differences in the structure, photosynthetic activity and protein expression profiles between bark and leaf chloroplasts were investigated in Salix matsudana in this study. Bark chloroplasts exhibited broader and lower grana stacks and higher levels of starch relative to leaf chloroplasts. Concomitantly, decreased oxygen evolution rates and decreased saturated radiation point were observed in bark chloroplasts. Furthermore, a total of 293 differentially expressed proteins (DEPs) were identified in bark and leaf chloroplast profile comparisons. These DEPs were significantly enriched in photosynthesis-related biological processes or Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways associated with photosynthesis. All 116 DEPs within the KEGG pathways associated with photosynthesis light reactions were downregulated in bark chloroplasts, including key proteins responsible for chlorophyll synthesis, light energy harvesting, nonphotochemical quenching, linear electron transport and photophosphorylation. Interestingly, seven upregulated proteins involved in dark reactions were identified in bark chloroplasts that comprised two kinds of malic enzymes typical of C4-type photosynthesis. These results provide comprehensive proteomic evidence to understand the low photochemical capability of bark chloroplasts and suggest that bark chloroplasts might fix CO2 derived from malate decarboxylation.
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Affiliation(s)
- Junxiang Liu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, P.R. China
| | - Chao Sun
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, P.R. China
| | - Fei-Fei Zhai
- School of Architectural and Artistic Design, Henan Polytechnic University, Jiaozuo, Henan 454000, P.R. China
| | - Zhenjian Li
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, P.R. China
| | - Yongqiang Qian
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, P.R. China
| | - Lin Gu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, P.R. China
| | - Zhenyuan Sun
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, P.R. China
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Zhao W, Ahmed S, Liu J, Ahmed S, Quansah E, Solangi TH, Wu Y, Yangliu Y, Wang H, Zhu J, Cai X. Comparative iTRAQ proteomics identified proteins associated with sperm maturation between yak and cattleyak epididymis. BMC Vet Res 2021; 17:255. [PMID: 34311720 PMCID: PMC8314601 DOI: 10.1186/s12917-021-02907-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 05/18/2021] [Indexed: 11/10/2022] Open
Abstract
Background During maturation, spermatozoa acquire motility and fertilizing capacity as they transit through the epididymis. In recent years, two-dimensional gel electrophoresis has been employed in proteomics studies conducted in rat, boar and human. However, there has not been a complete information regarding the proteins associated with sperm maturation in the epididymis. In this study, we employed iTRAQ proteomics to investigate proteins associated with sperm maturation between yak and cattleyak epididymis. Results After a successful sampling and protein extraction, the iTRAQ coupled with LC-MS/MS mass spectrometry and bioinformatics analysis were performed. We identified 288 differentially abundant proteins (DAPs) between yak and cattleyak epididymis; 151 were up-regulated while 137 were down-regulated in cattleyak relative to yak. Gene Ontology analysis identified that down-regulated DAPs in cattleyak were mostly enriched in the acetylation of protein component, along with negative and positive regulatory activities. iTRAQ proteomics data showed that the top up-regulated DAPs were mainly enriched in cell communication, cell adhesion, cytoskeleton organization, stress response, post-translational modifications and metabolic functions while the down-regulated DAPs were predominantly associated with sperm maturation, long-term sperm storage, sperm forward motility, sperm-oocyte fusion and regulatory functions. Conclusion These results provide insight into the molecular mechanisms underlying male cattleyak sterility.
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Affiliation(s)
- Wangsheng Zhao
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Siraj Ahmed
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Junxia Liu
- Qingdao Bright Moon Seaweed Group Co., ltd, Qingdao, 266400, Shandong, China
| | - Saeed Ahmed
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Eugene Quansah
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Tajmal Hussain Solangi
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Yitao Wu
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Yueling Yangliu
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Hongmei Wang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Jiangjiang Zhu
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization (Southwest Minzu University), Ministry of Education, Chengdu, 610041, Sichuan, China. .,Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Key Laboratory of Sichuan Province, Chengdu, 610041, Sichuan, China.
| | - Xin Cai
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization (Southwest Minzu University), Ministry of Education, Chengdu, 610041, Sichuan, China. .,Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Key Laboratory of Sichuan Province, Chengdu, 610041, Sichuan, China.
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Wang L, Liang Q, Zhang Y, Liu F, Sun Y, Wang S, Cao H, Meng J. iTRAQ-based quantitative proteomics and network pharmacology revealing hemostatic mechanism mediated by Zingiberis Rhizome Carbonisata in deficiency-cold and Hemorrhagic Syndrome rat models. Chem Biol Interact 2021; 343:109465. [PMID: 33831383 DOI: 10.1016/j.cbi.2021.109465] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 03/29/2021] [Accepted: 04/01/2021] [Indexed: 01/18/2023]
Abstract
Zingiberis Rhizome Carbonisata (ZRC) has been used as a hemostatic agent in traditional Chinese medicine (TCM). However, the underlying molecular mechanism remains unclear. In this study, network pharmacology method was used to predict the potential mechanism of ZRC on hemostasis, based on the structures of the main compounds. Then, iTRAQ-based quantitative proteomics analysis was used for verification of the candidate target proteins and pathways to illustrate the underlying mechanisms. Furthermore, the differentially expressed proteins (DEPs) in the enriched pathways were validated by Enzyme-linked immunosorbent assay. The results showed that the hemostasis mechanism of ZRC may be related to Platelet activation, Rap1 signaling pathway and Complement and coagulation cascades. And 10 proteins (Fermt3, ACTB, Talin, αIIbβ3, Fga, Fgb, Fgg, FXIIIb, Kng and PLC-β were identified as the target DEPs) are considered as the key factors related to hemostatic efficacy of ZRC. Thus, integrated network pharmacology and quantitative proteomics technology were applied for the effective illuminating the molecular mechanisms of Chinese material medica.
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Affiliation(s)
- Lyuhong Wang
- Department of Traditional Chinese Medicine, Guangdong Pharmaceutical University, The Key Unit of Chinese Medicine Digitalization Quality Evaluation of State Administration of Traditional Chinese Medicine, The Research Center for Quality Engineering Technology of Traditional Chinese Medicine, Panyu District, No. 280, Waihuan East Road, Guangzhou, Guangdong Province, 510006, China
| | - Qingguang Liang
- Department of Traditional Chinese Medicine, Guangdong Pharmaceutical University, The Key Unit of Chinese Medicine Digitalization Quality Evaluation of State Administration of Traditional Chinese Medicine, The Research Center for Quality Engineering Technology of Traditional Chinese Medicine, Panyu District, No. 280, Waihuan East Road, Guangzhou, Guangdong Province, 510006, China
| | - Ying Zhang
- College of Pharmacy, Jinan University / Research Center for Traditional Chinese Medicine of Lingnan (Southern China), Jinan University, National Engineering Research Center for Modernization of Traditional Chinese Medicine Lingnan Resources Branch, Guangzhou, 510632, China
| | - Fei Liu
- Guangdong Hexiang Pharmaceutical Co., Ltd, Guangzhou, 510385, China
| | - Yue Sun
- Department of Traditional Chinese Medicine, Guangdong Pharmaceutical University, The Key Unit of Chinese Medicine Digitalization Quality Evaluation of State Administration of Traditional Chinese Medicine, The Research Center for Quality Engineering Technology of Traditional Chinese Medicine, Panyu District, No. 280, Waihuan East Road, Guangzhou, Guangdong Province, 510006, China
| | - Shumei Wang
- Department of Traditional Chinese Medicine, Guangdong Pharmaceutical University, The Key Unit of Chinese Medicine Digitalization Quality Evaluation of State Administration of Traditional Chinese Medicine, The Research Center for Quality Engineering Technology of Traditional Chinese Medicine, Panyu District, No. 280, Waihuan East Road, Guangzhou, Guangdong Province, 510006, China.
| | - Hui Cao
- College of Pharmacy, Jinan University / Research Center for Traditional Chinese Medicine of Lingnan (Southern China), Jinan University, National Engineering Research Center for Modernization of Traditional Chinese Medicine Lingnan Resources Branch, Guangzhou, 510632, China.
| | - Jiang Meng
- Department of Traditional Chinese Medicine, Guangdong Pharmaceutical University, The Key Unit of Chinese Medicine Digitalization Quality Evaluation of State Administration of Traditional Chinese Medicine, The Research Center for Quality Engineering Technology of Traditional Chinese Medicine, Panyu District, No. 280, Waihuan East Road, Guangzhou, Guangdong Province, 510006, China.
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Farooq MA, Hong Z, Islam F, Noor Y, Hannan F, Zhang Y, Ayyaz A, Mwamba TM, Zhou W, Song W. Comprehensive proteomic analysis of arsenic induced toxicity reveals the mechanism of multilevel coordination of efficient defense and energy metabolism in two Brassica napus cultivars. Ecotoxicol Environ Saf 2021; 208:111744. [PMID: 33396070 DOI: 10.1016/j.ecoenv.2020.111744] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [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: 08/24/2020] [Revised: 11/23/2020] [Accepted: 11/27/2020] [Indexed: 05/19/2023]
Abstract
Arsenic (As) a non-essential element is of particular concern with respect to harmful effects on plant metabolism. While extensive studies have been conducted on the physiological responses of plants to increase As concentrations, however, molecular differences elucidating species-specific changes remain largely unknown. In the present experiment, two oilseed Brassica napus (B. napus) cultivars, ZS758 and ZD622, were treated by elevated As concentration. Their responses to the As stress have been investigated through pulse amplitude modulated fluorometer and isobaric tags based proteomic (iTRAQ) analysis. The chlorophyll fluorescence attributes showed that As stress significantly decrease the photochemical efficiency of photosystem II (PSII) and photosystem I (PSI) as well as the comparatively closed stomata observed under scanning electron microscopy (SEM). In this study, 65 proteins displayed increased abundance and 52 down-regulated were found in the control vs As comparison in cultivar ZS758, while 44 up and 67 down-regulated proteins were found in the control vs As comparison in ZD622. Metabolic pathways, followed by ribosome and biosynthesis of secondary metabolites were the dominant functional annotation categories among the differentially expressed protein (DEPs). Many genes involved in primary metabolism, stress and defense were found to be As-responsive DEPs and/or DEPs between these two cultivars. Based on these results, a schematic description of key processes involved in As tolerance in ZS758 and ZD622 is proposed, which suggests that higher tolerance in ZS758 depends on a multilevel coordination of efficient defense and energy metabolism. Real-time quantitative PCR supported the expression patterns of several genes encoding a protein similar to their corresponding DEPs. In addition, these findings could shed light in unraveling the molecular mechanisms of B. napus exposed to As stress and provide or improve essential understandings in the development of advanced B. napus cultivars against As resistance.
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Affiliation(s)
- Muhammad Ahsan Farooq
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou 310058, China
| | - Zheyuan Hong
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou 310058, China
| | - Faisal Islam
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou 310058, China
| | - Yamna Noor
- Department of Botany, The Women University, Multan 60000, Pakistan
| | - Fakhir Hannan
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou 310058, China
| | - Yan Zhang
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou 310058, China
| | - Ahsan Ayyaz
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou 310058, China
| | - Theodore M Mwamba
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou 310058, China
| | - Weijun Zhou
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou 310058, China
| | - Wenjian Song
- Agricultural Technology Extension Center, Zhejiang University, Hangzhou 310058, China.
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9
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Roccuzzo S, Couto N, Karunakaran E, Kapoore RV, Butler TO, Mukherjee J, Hansson EM, Beckerman AP, Pandhal J. Metabolic Insights Into Infochemicals Induced Colony Formation and Flocculation in Scenedesmus subspicatus Unraveled by Quantitative Proteomics. Front Microbiol 2020; 11:792. [PMID: 32457714 PMCID: PMC7220994 DOI: 10.3389/fmicb.2020.00792] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 04/02/2020] [Indexed: 01/15/2023] Open
Abstract
Microalgae can respond to natural cues from crustacean grazers, such as Daphnia, by forming colonies and aggregations called flocs. Combining microalgal biology, physiological ecology, and quantitative proteomics, we identified how infochemicals from Daphnia trigger physiological and cellular level changes in the microalga Scenedesmus subspicatus, underpinning colony formation and flocculation. We discovered that flocculation occurs at an energy-demanding ‘alarm’ phase, with an important role proposed in cysteine synthesis. Flocculation appeared to be initially stimulated by the production of an extracellular matrix where polysaccharides and fatty acids were present, and later sustained at an ‘acclimation’ stage through mitogen-activated protein kinase (MAPK) signaling cascades. Colony formation required investment into fatty acid metabolism, likely linked to separation of membranes during cell division. Higher energy demands were required at the alarm phase, which subsequently decreased at the acclimation stage, thus suggesting a trade-off between colony formation and flocculation. From an ecological and evolutionary perspective, our findings represent an improved understanding of the effect of infochemicals on microalgae-grazers interactions, and how they can therefore potentially impact on the structure of aquatic communities. Moreover, the mechanisms revealed are of interest in algal biotechnology, for exploitation in low-cost, sustainable microalgal biomass harvesting.
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Affiliation(s)
- Sebastiana Roccuzzo
- Department of Chemical and Biological Engineering, University of Sheffield, Sheffield, United Kingdom
| | - Narciso Couto
- Centre for Applied Pharmacokinetic Research, The University of Manchester, Manchester, United Kingdom
| | - Esther Karunakaran
- Department of Chemical and Biological Engineering, University of Sheffield, Sheffield, United Kingdom
| | - Rahul Vijay Kapoore
- Department of Biosciences, College of Science, Swansea University, Swansea, United Kingdom
| | - Thomas O Butler
- Department of Chemical and Biological Engineering, University of Sheffield, Sheffield, United Kingdom
| | - Joy Mukherjee
- Department of Chemical and Biological Engineering, University of Sheffield, Sheffield, United Kingdom
| | - Erika M Hansson
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom
| | - Andrew P Beckerman
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom
| | - Jagroop Pandhal
- Department of Chemical and Biological Engineering, University of Sheffield, Sheffield, United Kingdom
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10
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Saleem S, Tariq S, Aleem I, Sadr-Ul Shaheed, Tahseen M, Atiq A, Hassan S, Abu Bakar M, Khattak S, Syed AA, Ahmad AH, Hussain M, Yusuf MA, Sutton C. Proteomics analysis of colon cancer progression. Clin Proteomics 2019; 16:44. [PMID: 31889941 PMCID: PMC6935225 DOI: 10.1186/s12014-019-9264-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 12/12/2019] [Indexed: 02/07/2023] Open
Abstract
Background The aim of this pilot study was to identify proteins associated with advancement of colon cancer (CC). Methods A quantitative proteomics approach was used to determine the global changes in the proteome of primary colon cancer from patients with non-cancer normal colon (NC), non-adenomatous colon polyp (NAP), non-metastatic tumor (CC NM) and metastatic tumor (CC M) tissues, to identify up- and down-regulated proteins. Total protein was extracted from each biopsy, trypsin-digested, iTRAQ-labeled and the resulting peptides separated using strong cation exchange (SCX) and reverse-phase (RP) chromatography on-line to electrospray ionization mass spectrometry (ESI-MS). Results Database searching of the MS/MS data resulted in the identification of 2777 proteins which were clustered into groups associated with disease progression. Proteins which were changed in all disease stages including benign, and hence indicative of the earliest molecular perturbations, were strongly associated with spliceosomal activity, cell cycle division, and stromal and cytoskeleton disruption reflecting increased proliferation and expansion into the surrounding healthy tissue. Those proteins changed in cancer stages but not in benign, were linked to inflammation/immune response, loss of cell adhesion, mitochondrial function and autophagy, demonstrating early evidence of cells within the nutrient-poor solid mass either undergoing cell death or adjusting for survival. Caveolin-1, which decreased and Matrix metalloproteinase-9, which increased through the three disease stages compared to normal tissue, was selected to validate the proteomics results, but significant patient-to-patient variation obfuscated interpretation so corroborated the contradictory observations made by others. Conclusion Nevertheless, the study has provided significant insights into CC stage progression for further investigation.
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Affiliation(s)
- Saira Saleem
- 1Basic Science Research, Shaukat Khanum Memorial Cancer Hospital and Research Centre, 7-A Block R-3, Johar Town, Lahore, 54000 Pakistan
| | - Sahrish Tariq
- 1Basic Science Research, Shaukat Khanum Memorial Cancer Hospital and Research Centre, 7-A Block R-3, Johar Town, Lahore, 54000 Pakistan
| | - Iffat Aleem
- 1Basic Science Research, Shaukat Khanum Memorial Cancer Hospital and Research Centre, 7-A Block R-3, Johar Town, Lahore, 54000 Pakistan
| | - Sadr-Ul Shaheed
- 2Institute of Cancer Therapeutics, University of Bradford, Tumbling Hill Street, Bradford, BD7 1BD UK
| | - Muhammad Tahseen
- 3Department of Pathology, Shaukat Khanum Memorial Cancer Hospital and Research Centre, 7-A Block R-3, Johar Town, Lahore, 54000 Pakistan
| | - Aribah Atiq
- 3Department of Pathology, Shaukat Khanum Memorial Cancer Hospital and Research Centre, 7-A Block R-3, Johar Town, Lahore, 54000 Pakistan
| | - Sadia Hassan
- 4Clinical Research Office, Shaukat Khanum Memorial Cancer Hospital and Research Centre, 7-A Block R-3, Johar Town, Lahore, 54000 Pakistan
| | - Muhammad Abu Bakar
- 5Cancer Registry and Clinical Data Management, Shaukat Khanum Memorial Cancer Hospital and Research Centre, 7-A Block R-3, Johar Town, Lahore, 54000 Pakistan
| | - Shahid Khattak
- 6Department of Surgical Oncology, Shaukat Khanum Memorial Cancer Hospital and Research Centre, 7-A Block R-3, Johar Town, Lahore, 54000 Pakistan
| | - Aamir Ali Syed
- 6Department of Surgical Oncology, Shaukat Khanum Memorial Cancer Hospital and Research Centre, 7-A Block R-3, Johar Town, Lahore, 54000 Pakistan
| | - Asad Hayat Ahmad
- 3Department of Pathology, Shaukat Khanum Memorial Cancer Hospital and Research Centre, 7-A Block R-3, Johar Town, Lahore, 54000 Pakistan
| | - Mudassar Hussain
- 3Department of Pathology, Shaukat Khanum Memorial Cancer Hospital and Research Centre, 7-A Block R-3, Johar Town, Lahore, 54000 Pakistan
| | - Muhammed Aasim Yusuf
- Department of Internal Medicine, Shaukat Khanum Mmemorial Cancer Hospital and Research Centre, 7-A Block R-3, Johar Town, Lahore, 54000 Pakistan
| | - Chris Sutton
- 2Institute of Cancer Therapeutics, University of Bradford, Tumbling Hill Street, Bradford, BD7 1BD UK
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11
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MacDougall G, Anderton RS, Mastaglia FL, Knuckey NW, Meloni BP. Proteomic analysis of cortical neuronal cultures treated with poly-arginine peptide-18 (R18) and exposed to glutamic acid excitotoxicity. Mol Brain 2019; 12:66. [PMID: 31315638 PMCID: PMC6637488 DOI: 10.1186/s13041-019-0486-8] [Citation(s) in RCA: 5] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 07/01/2019] [Indexed: 01/30/2023] Open
Abstract
Abstract Poly-arginine peptide-18 (R18) has recently emerged as a highly effective neuroprotective agent in experimental stroke models, and is particularly efficacious in protecting cortical neurons against glutamic acid excitotoxicity. While we have previously demonstrated that R18 can reduce excitotoxicity-induced neuronal calcium influx, other molecular events associated with R18 neuroprotection are yet to investigated. Therefore, in this study we were particularly interested in protein expression changes in R18 treated neurons subjected to excitotoxicity. Proteomic analysis was used to compare protein expression patterns in primary cortical neuronal cultures subjected to: (i) R18-treatment alone (R18); (ii) glutamic acid excitotoxic injury (Glut); (iii) R18-treatment and glutamic acid injury (R18 + Glut); (iv) no treatment (Cont). Whole cell lysates were harvested 24 h post-injury and subjected to quantitative proteomic analysis (iTRAQ), coupled with liquid chromatography-tandem mass spectrometry (LC-MS/MS) and subsequent bioinformatic analysis of differentially expressed proteins (DEPs). Relative to control cultures, R18, Glut, and R18 + Glut treatment resulted in the detection of 5, 95 and 14 DEPs respectively. Compared to Glut alone, R18 + Glut revealed 98 DEPs, including 73 proteins whose expression was also altered by treatment with Glut and/or R18 alone, as well as 25 other uniquely regulated proteins. R18 treatment reversed the up- or down-regulation of all 73 Glut-associated DEPs, which included proteins involved in mitochondrial integrity, ATP generation, mRNA processing and protein translation. Analysis of protein-protein interactions of the 73 DEPs showed they were primarily associated with mitochondrial respiration, proteasome activity and protein synthesis, transmembrane trafficking, axonal growth and neuronal differentiation, and carbohydrate metabolism. Identified protein pathways associated with proteostasis and energy metabolism, and with pathways involved in neurodegeneration. Collectively, the findings indicate that R18 neuroprotection following excitotoxicity is associated with preservation of neuronal protein profiles, and differential protein expression that assists in maintaining mitochondrial function and energy production, protein homeostasis, and membrane trafficking. Graphical abstract ![]()
Electronic supplementary material The online version of this article (10.1186/s13041-019-0486-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Gabriella MacDougall
- Perron Institute for Neurological and Translational Sciences, QEII Medical Centre, Ground Floor, RR Block, 8 Verdun St, Nedlands, Western Australia, 6009, Australia. .,School of Heath Sciences and Institute for Health Research, The University Notre Dame, Fremantle, Western Australia, Australia.
| | - Ryan S Anderton
- Centre for Neuromuscular and Neurological Disorders, The University of Western Australia, Nedlands, Australia.,Perron Institute for Neurological and Translational Sciences, QEII Medical Centre, Ground Floor, RR Block, 8 Verdun St, Nedlands, Western Australia, 6009, Australia.,School of Heath Sciences and Institute for Health Research, The University Notre Dame, Fremantle, Western Australia, Australia
| | - Frank L Mastaglia
- Centre for Neuromuscular and Neurological Disorders, The University of Western Australia, Nedlands, Australia.,Perron Institute for Neurological and Translational Sciences, QEII Medical Centre, Ground Floor, RR Block, 8 Verdun St, Nedlands, Western Australia, 6009, Australia
| | - Neville W Knuckey
- Centre for Neuromuscular and Neurological Disorders, The University of Western Australia, Nedlands, Australia.,Department of Neurosurgery, Sir Charles Gairdner Hospital, QEII Medical Centre, Nedlands, Western Australia, Australia.,Perron Institute for Neurological and Translational Sciences, QEII Medical Centre, Ground Floor, RR Block, 8 Verdun St, Nedlands, Western Australia, 6009, Australia
| | - Bruno P Meloni
- Centre for Neuromuscular and Neurological Disorders, The University of Western Australia, Nedlands, Australia.,Department of Neurosurgery, Sir Charles Gairdner Hospital, QEII Medical Centre, Nedlands, Western Australia, Australia.,Perron Institute for Neurological and Translational Sciences, QEII Medical Centre, Ground Floor, RR Block, 8 Verdun St, Nedlands, Western Australia, 6009, Australia
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12
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Iqbal J, Zhang K, Jin N, Zhao Y, Liu X, Liu Q, Ni J, Shen L. Alzheimer's Disease Is Responsible for Progressive Age-Dependent Differential Expression of Various Protein Cascades in Retina of Mice. ACS Chem Neurosci 2019; 10:2418-2433. [PMID: 30695639 DOI: 10.1021/acschemneuro.8b00710] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Alzheimer's disease (AD) is a devastating neurodegenerative disease associated with cognitive impairments and memory loss usually in aged people. In the past few years, it has been detected in the eye retina, manifesting the systematic spread of the disease. This might be used for biomarker discovery for early detection and treatment of the disease. Here, we have described the proteomic alterations in retina of 2, 4, and 6 months old 3×Tg-AD mice by using iTRAQ (isobaric tags for relative and absolute quantification) proteomics technology. Out of the total identified proteins, 121 (71 up- and 50 down-regulated), 79 (51 up- and 28 down-regulated), and 153 (37 up- and 116 down-regulated) significantly differentially expressed proteins (DEPs) are found in 2, 4, and 6 month's mice retina (2, 4, and 6 M), respectively. Seventeen DEPs are found common in these three groups with consistent expression behavior or opposite expression in the three groups. Bioinformatics analysis of these DEPs highlighted their involvement in vital AD-related biological phenomenon. To further prompt the results, four proteins from 2 M group, three from 4 M, and four from 6 M age groups are successfully validated with Western blot analysis. This study confirms the retinal involvement of AD in the form of proteomic differences and further explains the protein-based molecular mechanisms, which might be a step toward biomarker discovery for early detection and treatment of the disease.
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Affiliation(s)
- Javed Iqbal
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
| | - Kaoyuan Zhang
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
- Department of Dermatology, Peking University Shenzhen Hospital, Guangdong 518036, China
| | - Na Jin
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
| | - Yuxi Zhao
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
| | - Xukun Liu
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
| | - Qiong Liu
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
| | - Jiazuan Ni
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
| | - Liming Shen
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, P. R. China
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13
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Gupta AK, Pokhriyal R, Khan MI, Kumar DR, Gupta R, Chadda RK, Ramachandran R, Goyal V, Tripathi M, Hariprasad G. Cerebrospinal Fluid Proteomics For Identification Of α2-Macroglobulin As A Potential Biomarker To Monitor Pharmacological Therapeutic Efficacy In Dopamine Dictated Disease States Of Parkinson's Disease And Schizophrenia. Neuropsychiatr Dis Treat 2019; 15:2853-2867. [PMID: 31632033 PMCID: PMC6781638 DOI: 10.2147/ndt.s214217] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 08/13/2019] [Indexed: 12/24/2022] Open
Abstract
AIM Parkinson's disease and schizophrenia are clinical end points of dopaminergic deficit and excess, respectively, in the mid-brain. In accordance, current pharmacological interventions aim to restore normal dopamine levels, the overshooting of which culminates in adverse effects which results in psychotic symptoms in Parkinson's disease and extra-pyramidal symptoms in schizophrenia. Currently, there are no laboratory assays to assist treatment decisions or help foresee these drug side-effect outcomes. Therefore, the aim was to discover a protein biomarker that had a varying linear expression across the clinical dopaminergic spectrum. MATERIALS AND METHODS iTRAQ-based proteomic experiments along with mass spectrometric analysis was used for comparative proteomics using cerebrospinal fluid (CSF). CSF fluid was collected from 36 patients with Parkinson's disease, 15 patients with urological diseases that served as neurological controls, and seven schizophrenic patients with hallucinations. Validation included ELISA and pathway analysis to highlight the varying expression and provide plausible molecular pathways for differentially expressed proteins in the three clinical phenotypes. RESULTS Protein profiles were delineated in CSF from Parkinson's disease patients, neurological control and schizophrenia, respectively. Ten of the proteins that were identified had a linear relationship across the dopaminergic spectrum. α-2-Macroglobulin showed to be having high statistical significance on inter-group comparison on validation studies using ELISA. CONCLUSIONS Non-gel-based proteomic experiments are an ideal platform to discover potential biomarkers that can be used to monitor pharmaco-therapeutic efficacy in dopamine-dictated clinical scenarios. α-2 Macroglobulin is a potential biomarker to monitor pharmacological therapy in Parkinson's disease and schizophrenia.
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Affiliation(s)
| | | | | | | | | | | | | | - Vinay Goyal
- Department of Neurology, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Manjari Tripathi
- Department of Neurology, All India Institute of Medical Sciences, New Delhi 110029, India
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14
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Feng D, Wang Y, Lu T, Zhang Z, Han X. Proteomics analysis reveals marker proteins for minor vein initiation in rice leaf. Funct Integr Genomics 2018; 18:581-91. [PMID: 29748923 DOI: 10.1007/s10142-018-0612-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 04/11/2018] [Accepted: 04/23/2018] [Indexed: 10/16/2022]
Abstract
Leaf veins play a critical role in resource supplication and photosynthate translocation; thus, it is considered as an important agricultural trait for crop breeding. The rice minor veins are parallelly grown along all the parts of the leaf from base to tip. To understand the process of minor vein development, anatomy analysis was performed to reveal the initiation and development of minor veins in rice leaf. The frequency of minor vein initiation follows a decreased tendency from leaf base to tip. An iTRAQ-based proteomics analysis was performed in rice leaf sections. Photosynthesis- and carbon fixation-related proteins accumulated a high level in the middle part of leaves. Furthermore, marker proteins involved in sucrose degradation and starch synthesis were accumulated into initiation and mature parts of minor veins, respectively. It suggests a different source-sink activity in the initiation and mature parts of minor veins in terms of photosynthate translocation. The identified proteins are candidate markers for small vein initiation in rice leaves.
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15
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Hulme CH, Wilson EL, Fuller HR, Roberts S, Richardson JB, Gallacher P, Peffers MJ, Shirran SL, Botting CH, Wright KT. Two independent proteomic approaches provide a comprehensive analysis of the synovial fluid proteome response to Autologous Chondrocyte Implantation. Arthritis Res Ther 2018; 20:87. [PMID: 29720234 PMCID: PMC5932832 DOI: 10.1186/s13075-018-1573-4] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 03/21/2018] [Indexed: 02/06/2023] Open
Abstract
Background Autologous chondrocyte implantation (ACI) has a failure rate of approximately 20%, but it is yet to be fully understood why. Biomarkers are needed that can pre-operatively predict in which patients it is likely to fail, so that alternative or individualised therapies can be offered. We previously used label-free quantitation (LF) with a dynamic range compression proteomic approach to assess the synovial fluid (SF) of ACI responders and non-responders. However, we were able to identify only a few differentially abundant proteins at baseline. In the present study, we built upon these previous findings by assessing higher-abundance proteins within this SF, providing a more global proteomic analysis on the basis of which more of the biology underlying ACI success or failure can be understood. Methods Isobaric tagging for relative and absolute quantitation (iTRAQ) proteomic analysis was used to assess SF from ACI responders (mean Lysholm improvement of 33; n = 14) and non-responders (mean Lysholm decrease of 14; n = 13) at the two stages of surgery (cartilage harvest and chondrocyte implantation). Differentially abundant proteins in iTRAQ and combined iTRAQ and LF datasets were investigated using pathway and network analyses. Results iTRAQ proteomic analysis confirmed our previous finding that there is a marked proteomic shift in response to cartilage harvest (70 and 54 proteins demonstrating ≥ 2.0-fold change and p < 0.05 between stages I and II in responders and non-responders, respectively). Further, it highlighted 28 proteins that were differentially abundant between responders and non-responders to ACI, which were not found in the LF study, 16 of which were altered at baseline. The differential expression of two proteins (complement C1s subcomponent and matrix metalloproteinase 3) was confirmed biochemically. Combination of the iTRAQ and LF proteomic datasets generated in-depth SF proteome information that was used to generate interactome networks representing ACI success or failure. Functional pathways that are dysregulated in ACI non-responders were identified, including acute-phase response signalling. Conclusions Several candidate biomarkers for baseline prediction of ACI outcome were identified. A holistic overview of the SF proteome in responders and non-responders to ACI has been profiled, providing a better understanding of the biological pathways underlying clinical outcome, particularly the differential response to cartilage harvest in non-responders. Electronic supplementary material The online version of this article (10.1186/s13075-018-1573-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Charlotte H Hulme
- Institute of Science and Technology in Medicine, Keele University, Keele, Staffordshire, ST5 5BG, UK.,Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, SY10 7AG, UK
| | - Emma L Wilson
- Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, SY10 7AG, UK.,Chester Medical School, Chester University, Chester, CH1 4BJ, UK
| | - Heidi R Fuller
- Institute of Science and Technology in Medicine, Keele University, Keele, Staffordshire, ST5 5BG, UK
| | - Sally Roberts
- Institute of Science and Technology in Medicine, Keele University, Keele, Staffordshire, ST5 5BG, UK.,Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, SY10 7AG, UK
| | - James B Richardson
- Institute of Science and Technology in Medicine, Keele University, Keele, Staffordshire, ST5 5BG, UK.,Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, SY10 7AG, UK
| | - Pete Gallacher
- Institute of Science and Technology in Medicine, Keele University, Keele, Staffordshire, ST5 5BG, UK.,Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, SY10 7AG, UK
| | - Mandy J Peffers
- Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, L7 8TX, UK
| | - Sally L Shirran
- BSRC Mass Spectrometry and Proteomics Facility, University of St Andrews, North Haugh, Fife, KY16 9ST, UK
| | - Catherine H Botting
- BSRC Mass Spectrometry and Proteomics Facility, University of St Andrews, North Haugh, Fife, KY16 9ST, UK
| | - Karina T Wright
- Institute of Science and Technology in Medicine, Keele University, Keele, Staffordshire, ST5 5BG, UK. .,Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, SY10 7AG, UK.
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16
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Helliwell KE, Pandhal J, Cooper MB, Longworth J, Kudahl UJ, Russo DA, Tomsett EV, Bunbury F, Salmon DL, Smirnoff N, Wright PC, Smith AG. Quantitative proteomics of a B 12 -dependent alga grown in coculture with bacteria reveals metabolic tradeoffs required for mutualism. New Phytol 2018; 217:599-612. [PMID: 29034959 PMCID: PMC5765456 DOI: 10.1111/nph.14832] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 08/31/2017] [Indexed: 05/02/2023]
Abstract
The unicellular green alga Lobomonas rostrata requires an external supply of vitamin B12 (cobalamin) for growth, which it can obtain in stable laboratory cultures from the soil bacterium Mesorhizobium loti in exchange for photosynthate. We investigated changes in protein expression in the alga that allow it to engage in this mutualism. We used quantitative isobaric tagging (iTRAQ) proteomics to determine the L. rostrata proteome grown axenically with B12 supplementation or in coculture with M. loti. Data are available via ProteomeXchange (PXD005046). Using the related Chlamydomonas reinhardtii as a reference genome, 588 algal proteins could be identified. Enzymes of amino acid biosynthesis were higher in coculture than in axenic culture, and this was reflected in increased amounts of total cellular protein and several free amino acids. A number of heat shock proteins were also elevated. Conversely, photosynthetic proteins and those of chloroplast protein synthesis were significantly lower in L. rostrata cells in coculture. These observations were confirmed by measurement of electron transfer rates in cells grown under the two conditions. The results indicate that, despite the stability of the mutualism, L. rostrata experiences stress in coculture with M. loti, and must adjust its metabolism accordingly.
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Affiliation(s)
| | - Jagroop Pandhal
- Department of Chemical and Biological EngineeringUniversity of SheffieldMappin StreetSheffieldS1 3JDUK
| | - Matthew B. Cooper
- Department of Plant SciencesUniversity of CambridgeCambridgeCB2 3EAUK
| | - Joseph Longworth
- Department of Chemical and Biological EngineeringUniversity of SheffieldMappin StreetSheffieldS1 3JDUK
| | | | - David A. Russo
- Department of Chemical and Biological EngineeringUniversity of SheffieldMappin StreetSheffieldS1 3JDUK
| | | | - Freddy Bunbury
- Department of Plant SciencesUniversity of CambridgeCambridgeCB2 3EAUK
| | - Deborah L. Salmon
- BiosciencesCollege of Life and Environmental SciencesUniversity of ExeterExeterEX4 4QDUK
| | - Nicholas Smirnoff
- BiosciencesCollege of Life and Environmental SciencesUniversity of ExeterExeterEX4 4QDUK
| | - Phillip C. Wright
- Department of Chemical and Biological EngineeringUniversity of SheffieldMappin StreetSheffieldS1 3JDUK
| | - Alison G. Smith
- Department of Plant SciencesUniversity of CambridgeCambridgeCB2 3EAUK
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Zhang J, Wang Y, Zhou Y, He QY. Jolkinolide B induces apoptosis of colorectal carcinoma through ROS-ER stress-Ca 2+-mitochondria dependent pathway. Oncotarget 2017; 8:91223-37. [PMID: 29207638 DOI: 10.18632/oncotarget.20077] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Accepted: 07/26/2017] [Indexed: 01/09/2023] Open
Abstract
Colorectal carcinoma (CRC) remains one of the leading causes of death in cancer-related diseases. In this study, we aimed to investigate the anticancer effect of Jolkinolide B (JB), a bioactive diterpenoid component isolated from the dried roots of Euphorbia fischeriana Steud, on CRC cells and its underlying mechanisms. We found that JB suppressed the cell viability and colony formation of CRC cells, HT29 and SW620. Annexin V/PI assay revealed that JB induced apoptosis in CRC cells, which was further confirmed by the increased expression of cleaved-caspase3 and cleaved-PARP. iTRAQ-based quantitative proteomics was performed to identify JB-regulated proteins in CRC cells. Gene Ontology (GO) analysis revealed that these JB-regulated proteins were mainly involved in ER stress response, which was evidenced by the expression of ER stress marker proteins, HSP90, Bip and PDI. Moreover, we found that JB provoked the generation of reactive oxygen species (ROS), and that inhibition of the ROS generation with N-acetyl L-cysteine could reverse the JB-induced apoptosis. Confocal microscopy and flow cytometry showed that JB treatment enhanced intracellular and mitochondrial Ca2+ level and JC-1 assay revealed a loss of mitochondrial membrane potential in CRC after JB treatment. The mitochondrial Ca2+ uptake and depolarization can be blocked by Ruthenium Red (RuRed), an inhibitor of mitochondrial Ca2+ uniporter. Taken together, we demonstrated that JB exerts its anticancer effect by ER stress-Ca2+-mitochondria signaling, suggesting the promising chemotherapeutic potential of JB for the treatment of CRC.
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Nie CH, Wan SM, Tomljanovic T, Treer T, Hsiao CD, Wang WM, Gao ZX. Comparative proteomics analysis of teleost intermuscular bones and ribs provides insight into their development. BMC Genomics 2017; 18:147. [PMID: 28183283 PMCID: PMC5301324 DOI: 10.1186/s12864-017-3530-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Accepted: 01/31/2017] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Intermuscular bones (IBs) and ribs both are a part of skeletal system in teleosts, but with different developing process. The chemical composition of fish IBs and ribs as well as the underlying mechanism about their development have not been investigated. In the present study, histological structures showed that one bone cavity containing osteoclasts were existed in ribs, but not in IBs of Megalobrama amblycephala. We constructed the first proteomics map for fish bones including IBs and ribs, and identified the differentially expressed proteins between IBs and ribs through iTRAQ LC-MS/MS proteomic analysis. RESULTS The proteins extracted from IBs and ribs at 1- to 2-year old M. amblycephala were quantified 2,342 proteins, with 1,451 proteins annotated with GO annotation in biological processes, molecular function and cellular component. A number of bone related proteins as well as pathways were identified in the study. A total of 93 and 154 differently expressed proteins were identified in comparison groups of 1-IB-vs-1-Rib and 2-IB-vs-2-Rib, which indicated the obvious differences of chemical composition between these two bone tissues. The two proteins (vitronectin b precursor and matrix metalloproteinase-2) related to osteoclasts differentiation were significantly up-regulated in ribs compared with IBs (P < 0.05), which was in accordance with the results from histological structures. In comparison groups of 1-IB-vs-2-IB and 1-Rib-vs-2-Rib, 33 and 51 differently expressed proteins were identified and the function annotation results showed that these proteins were involved in regulating bone development and differentiation. Subsequently, 11 and 13 candidate proteins in comparison group of 1-IB-vs-1-Rib and 1-IB-vs-2-IB related to bone development were validated by MRM assays. CONCLUSIONS Our present study suggested the different key proteins involved in the composition of fish ribs and IBs as well as their growth development. These findings could provide important clues towards further understanding of fish skeletal system and the roles of proteins playing in regulating diverse biological processes in fish.
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Affiliation(s)
- Chun-Hong Nie
- College of Fisheries, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education/Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei 430070 China
- Collaborative Innovation Center for Healthy Freshwater Aquaculture of Hubei Province, Wuhan, 430070 China
| | - Shi-Ming Wan
- College of Fisheries, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education/Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei 430070 China
- Collaborative Innovation Center for Healthy Freshwater Aquaculture of Hubei Province, Wuhan, 430070 China
| | - Tea Tomljanovic
- Department for Fisheries, Beekeeping, Game management and Special Zoology, Faculty of Agriculture, University of Zagreb, Zagreb, Croatia
| | - Tomislav Treer
- Department for Fisheries, Beekeeping, Game management and Special Zoology, Faculty of Agriculture, University of Zagreb, Zagreb, Croatia
| | - Chung-Der Hsiao
- Department of Bioscience Technology, Chung Yuan Christian University, Chung-Li, Taiwan
| | - Wei-Min Wang
- College of Fisheries, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education/Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei 430070 China
| | - Ze-Xia Gao
- College of Fisheries, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education/Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei 430070 China
- Collaborative Innovation Center for Healthy Freshwater Aquaculture of Hubei Province, Wuhan, 430070 China
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070 Hubei China
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19
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Cavusoglu N, Delattre C, Donovan M, Bourassa S, Droit A, El Rawadi C, Jourdain R, Bernard D. iTRAQ-based quantitative proteomics of stratum corneum of dandruff scalp reveals new insights into its aetiology and similarities with atopic dermatitis. Arch Dermatol Res 2016; 308:631-642. [PMID: 27600510 DOI: 10.1007/s00403-016-1681-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [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: 02/05/2016] [Revised: 08/12/2016] [Accepted: 08/30/2016] [Indexed: 12/16/2022]
Abstract
The study aimed at detecting differentially expressed proteins in the stratum corneum of dandruff versus non-dandruff scalps to better understand dandruff aetiology. iTRAQ-based quantitative proteomic analysis revealed a total of 68 differentially expressed biomarkers. A detailed analysis of their known physiological functions provided new insights into the affected metabolic pathways of a dandruff scalp. Dandruff scalp showed (1) profound changes in the expression and maturation of structural and epidermal differentiation related proteins, that are responsible for the integrity of the skin, (2) altered relevant factors that regulate skin hydration, and (3) an imbalanced physiological protease-protease inhibitor ratio. Stratum corneum proteins with antimicrobial activity, mainly those derived from sweat and sebaceous glands were also found modified. Comparing our data with those reported for atopic dermatitis revealed that about 50 % of the differentially expressed proteins in the superficial layers of the stratum corneum from dandruff and atopic dermatitis are identical.
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Affiliation(s)
- Nükhet Cavusoglu
- L'Oreal Research and Innovation, 1 Avenue Eugène Schueller, 93600, Aulnay-Sous-Bois, France.
| | - Caroline Delattre
- L'Oreal Research and Innovation, 1 Avenue Eugène Schueller, 93600, Aulnay-Sous-Bois, France
| | - Mark Donovan
- L'Oreal Research and Innovation, 1 Avenue Eugène Schueller, 93600, Aulnay-Sous-Bois, France
| | - Sylvie Bourassa
- Centre de recherche du CHU de Québec, Plate-forme protéomique, 2705, Boulevard Laurier, QC, Canada
| | - Arnaud Droit
- Centre de recherche du CHU de Québec, Plate-forme protéomique, 2705, Boulevard Laurier, QC, Canada
| | - Charles El Rawadi
- L'Oreal Research and Innovation, 1 Avenue Eugène Schueller, 93600, Aulnay-Sous-Bois, France
| | - Roland Jourdain
- L'Oreal Research and Innovation, 1 Avenue Eugène Schueller, 93600, Aulnay-Sous-Bois, France
| | - Dominique Bernard
- L'Oreal Research and Innovation, 1 Avenue Eugène Schueller, 93600, Aulnay-Sous-Bois, France
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20
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Nicholson L, Evans CA, Matheson E, Minto L, Keilty C, Sanichar M, Case M, Schwab C, Williamson D, Rainer J, Harrison CJ, Kofler R, Hall AG, Redfern CPF, Whetton AD, Irving JAE. Quantitative proteomic analysis reveals maturation as a mechanism underlying glucocorticoid resistance in B lineage ALL and re-sensitization by JNK inhibition. Br J Haematol 2015; 171:595-605. [PMID: 26310606 PMCID: PMC4833193 DOI: 10.1111/bjh.13647] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 07/01/2015] [Indexed: 12/25/2022]
Abstract
Glucocorticoid (GC) resistance is a continuing clinical problem in childhood acute lymphoblastic leukaemia (ALL) but the underlying mechanisms remain unclear. A proteomic approach was used to compare profiles of the B-lineage ALL GC-sensitive cell line, PreB 697, and its GC-resistant sub-line, R3F9, pre- and post-dexamethasone exposure. PAX5, a transcription factor critical to B-cell development was differentially regulated in the PreB 697 compared to the R3F9 cell line in response to GC. PAX5 basal protein expression was less in R3F9 compared to its GC-sensitive parent and confirmed to be lower in other GC-resistant sub-lines of Pre B 697 and was associated with a decreased expression of the PAX5 transcriptional target, CD19. Gene set enrichment analysis showed that increasing GC-resistance was associated with differentiation from preB-II to an immature B-lymphocyte stage. GC-resistant sub-lines were shown to have higher levels of phosphorylated JNK compared to the parent line and JNK inhibition caused re-sensitization to GC. Exploiting this maturation may be key to overcoming GC resistance and targeting signalling pathways linked to the maturation state, such as JNK, may be a novel approach.
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Affiliation(s)
- Lindsay Nicholson
- Newcastle Cancer Centre at the Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
| | - Caroline A Evans
- Stem Cell and Leukaemia Proteomics Laboratory, School of Cancer and Enabling Sciences, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Elizabeth Matheson
- Newcastle Cancer Centre at the Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
| | - Lynne Minto
- Newcastle Cancer Centre at the Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
| | - Christopher Keilty
- Newcastle Cancer Centre at the Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
| | - Maryna Sanichar
- Newcastle Cancer Centre at the Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
| | - Marian Case
- Newcastle Cancer Centre at the Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
| | - Claire Schwab
- Newcastle Cancer Centre at the Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
| | - Daniel Williamson
- Newcastle Cancer Centre at the Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
| | | | - Christine J Harrison
- Newcastle Cancer Centre at the Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
| | | | - Andrew G Hall
- Newcastle Cancer Centre at the Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
| | - Christopher P F Redfern
- Newcastle Cancer Centre at the Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
| | - Anthony D Whetton
- Stem Cell and Leukaemia Proteomics Laboratory, School of Cancer and Enabling Sciences, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Julie A E Irving
- Newcastle Cancer Centre at the Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
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