1
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Song J, Cho J, Park J, Hwang JH. Identification and validation of stable reference genes for quantitative real time PCR in different minipig tissues at developmental stages. BMC Genomics 2022; 23:585. [PMID: 35962323 PMCID: PMC9374586 DOI: 10.1186/s12864-022-08830-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 07/28/2022] [Indexed: 11/29/2022] Open
Abstract
Background Quantitative real time PCR (qPCR) is a powerful tool to evaluate mRNA expression level. However, reliable qPCR results require normalization with validated reference gene(s). In this study, we investigated stable reference genes in seven tissues according to four developmental stages in minipigs. Six candidate reference genes and one target gene (ACE2) were selected and qPCR was performed. BestKeeper, geNorm, NormFinder, and delta Ct method through the RefFinder web-based tool were used to evaluate the stability of candidate reference genes. To verify the selected stable genes, relative expression of ACE2 was calculated and compared with each other. Results As a result, HPRT1 and 18S genes had lower SD value, while HMBS and GAPDH genes had higher SD value in all samples. Using statistical algorithms, HPRT1 was the most stable gene, followed by 18S, β-actin, B2M, GAPDH, and HMBS. In intestine, all candidate reference genes exhibited similar patterns of ACE2 gene expression over time, whereas in liver, lung, and kidney, gene expression pattern normalized with stable reference genes differed from those normalized with less stable genes. When normalized with the most stable genes, the expression levels of ACE2 in minipigs highly increased in intestine and kidney at PND28, which is consistent with the ACE2 expression pattern in humans. Conclusions We suggest that HPRT1 and 18S are good choices for analyzing all these samples across the seven tissues and four developmental stages. However, this study can be a reference literature for gene expression experiments using minipig because reference gene should be validated and chosen according to experimental conditions. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-022-08830-z.
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Affiliation(s)
- Jeongah Song
- Animal Model Research Group, Korea Institute of Toxicology, Jeongeup, 56212, Republic of Korea.
| | - Jeonghee Cho
- Animal Model Research Group, Korea Institute of Toxicology, Jeongeup, 56212, Republic of Korea.,Department of Bio-Non-Clinical Science, Graduate School of Konyang University of Bioconvergence, 158, Gwanjeodong-ro, Seo-gu, Daejeon, 35365, Republic of Korea
| | - Jeongsik Park
- Animal Model Research Group, Korea Institute of Toxicology, Jeongeup, 56212, Republic of Korea
| | - Jeong Ho Hwang
- Animal Model Research Group, Korea Institute of Toxicology, Jeongeup, 56212, Republic of Korea.
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2
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Wang Y, Wu Z, Fang T, Zhang Y, Chen L, Du Z, Yang C. Identification of internal reference genes for porcine immature Sertoli cells under heat stress. Reprod Domest Anim 2022; 57:1344-1352. [DOI: 10.1111/rda.14211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/19/2022] [Accepted: 07/20/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Yi Wang
- College of Animal Science Yangtze University 434025 Jingzhou Hubei China
| | - Zi‐Wei Wu
- College of Animal Science Yangtze University 434025 Jingzhou Hubei China
| | - Ting Fang
- College of Animal Science Yangtze University 434025 Jingzhou Hubei China
| | - Yu‐Qing Zhang
- College of Animal Science Yangtze University 434025 Jingzhou Hubei China
| | - Lu Chen
- College of Animal Science and Technology Northeast Agricultural University 150030 Harbin Heilongjiang China
| | - Zhi‐Qiang Du
- College of Animal Science Yangtze University 434025 Jingzhou Hubei China
| | - Cai‐Xia Yang
- College of Animal Science Yangtze University 434025 Jingzhou Hubei China
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3
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Luo Y, Lan C, Xie K, Li H, Devillard E, He J, Liu L, Cai J, Tian G, Wu A, Ren Z, Chen D, Yu B, Huang Z, Zheng P, Mao X, Yu J, Luo J, Yan H, Wang Q, Wang H, Tang J. Active or Autoclaved Akkermansia muciniphila Relieves TNF-α-Induced Inflammation in Intestinal Epithelial Cells Through Distinct Pathways. Front Immunol 2022; 12:788638. [PMID: 34975882 PMCID: PMC8716699 DOI: 10.3389/fimmu.2021.788638] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 11/30/2021] [Indexed: 12/28/2022] Open
Abstract
Intestinal inflammation is a major threat to the health and growth of young animals such as piglets. As a next-generation probiotics, limited studies have shown that Akkermansia muciniphila could alleviate inflammation of intestinal epithelial cells (IECs). In this study, a TNF-α-induced inflammatory model of IPEC-J2 cells, the intestinal porcine enterocytes, was built to evaluate the effects of active or inactive A. muciniphila on the inflammation of IECs. The viability of IPEC-J2 cells was the highest when treated with active (108 copies/mL) or inactive (109 copies/mL) A. muciniphila for 7.5 h (P < 0.01). Treated with 20 ng/mL of TNF-α and followed by a treatment of A. muciniphila, the mRNA level of proinflammatory cytokines (IL-8, IL-1β, IL-6 and TNF-α) was remarkably reduced (P < 0.05) along with the increased mRNA level of tight junction proteins (ZO-1 and Occludin, P < 0.05). Flow cytometry analysis showed that active or inactive A. muciniphila significantly suppressed the rate of the early and total apoptotic of the inflammatory IPEC-J2 cells (P < 0.05). According to results of transcriptome sequencing, active and inactive A. muciniphila may decline cell apoptosis by down-regulating the expression of key genes in calcium signaling pathway, or up-regulating the expression of key genes in cell cycle signaling pathway. And the bacterium may alleviate the inflammation of IECs by down-regulating the expression of PI3K upstream receptor genes. Our results indicate that A. muciniphila may be a promising NGP targeting intestinal inflammation.
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Affiliation(s)
- Yuheng Luo
- Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory for Animal Disease-Resistance Nutrition and Feed of Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Cong Lan
- Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory for Animal Disease-Resistance Nutrition and Feed of Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Kunhong Xie
- Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory for Animal Disease-Resistance Nutrition and Feed of Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Hua Li
- Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory for Animal Disease-Resistance Nutrition and Feed of Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Estelle Devillard
- Center of Research for Nutrition and Health, Adisseo France SAS, Commentry, France
| | - Jun He
- Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory for Animal Disease-Resistance Nutrition and Feed of Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Li Liu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Jingyi Cai
- Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory for Animal Disease-Resistance Nutrition and Feed of Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Gang Tian
- Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory for Animal Disease-Resistance Nutrition and Feed of Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Aimin Wu
- Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory for Animal Disease-Resistance Nutrition and Feed of Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Zhihua Ren
- College of Veterinary Medicine, Sichuan Province Key Laboratory of Animal Disease and Human Health, Key Laboratory of Environmental Hazard and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Daiwen Chen
- Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory for Animal Disease-Resistance Nutrition and Feed of Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Bing Yu
- Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory for Animal Disease-Resistance Nutrition and Feed of Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Zhiqing Huang
- Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory for Animal Disease-Resistance Nutrition and Feed of Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Ping Zheng
- Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory for Animal Disease-Resistance Nutrition and Feed of Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Xiangbing Mao
- Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory for Animal Disease-Resistance Nutrition and Feed of Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Jie Yu
- Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory for Animal Disease-Resistance Nutrition and Feed of Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Junqiu Luo
- Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory for Animal Disease-Resistance Nutrition and Feed of Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Hui Yan
- Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory for Animal Disease-Resistance Nutrition and Feed of Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Quyuan Wang
- Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory for Animal Disease-Resistance Nutrition and Feed of Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Huifen Wang
- Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory for Animal Disease-Resistance Nutrition and Feed of Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Jiayong Tang
- Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory for Animal Disease-Resistance Nutrition and Feed of Ministry of Agriculture of China, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
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4
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Chronic isoprenaline/phenylephrine vs. exclusive isoprenaline stimulation in mice: critical contribution of alpha 1-adrenoceptors to early cardiac stress responses. Basic Res Cardiol 2022; 117:15. [PMID: 35286475 PMCID: PMC8921177 DOI: 10.1007/s00395-022-00920-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 02/04/2022] [Accepted: 02/07/2022] [Indexed: 01/31/2023]
Abstract
Hyperactivity of the sympathetic nervous system is a major driver of cardiac remodeling, exerting its effects through both α-, and β-adrenoceptors (α-, β-ARs). As the relative contribution of subtype α1-AR to cardiac stress responses remains poorly investigated, we subjected mice to either subcutaneous perfusion with the β-AR agonist isoprenaline (ISO, 30 mg/kg × day) or to a combination of ISO and the stable α1-AR agonist phenylephrine (ISO/PE, 30 mg/kg × day each). Telemetry analysis revealed similar hemodynamic responses under both ISO and ISO/PE treatment i.e., permanently increased heart rates and only transient decreases in mean blood pressure during the first 24 h. Echocardiography and single cell analysis after 1 week of exposure showed that ISO/PE-, but not ISO-treated animals established α1-AR-mediated inotropic responsiveness to acute adrenergic stimulation. Morphologically, additional PE perfusion limited concentric cardiomyocyte growth and enhanced cardiac collagen deposition during 7 days of treatment. Time-course analysis demonstrated a diverging development in transcriptional patterns at day 4 of treatment i.e., increased expression of selected marker genes Xirp2, Nppa, Tgfb1, Col1a1, Postn under chronic ISO/PE treatment which was either less pronounced or absent in the ISO group. Transcriptome analyses at day 4 via RNA sequencing demonstrated that additional PE treatment caused a marked upregulation of genes allocated to extracellular matrix and fiber organization along with a more pronounced downregulation of genes involved in metabolic processes, muscle adaptation and cardiac electrophysiology. Consistently, transcriptome changes under ISO/PE challenge more effectively recapitulated early transcriptional alterations in pressure overload-induced experimental heart failure and in human hypertrophic cardiomyopathy.
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5
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Seelbinder B, Ghosh S, Schneider SE, Scott AK, Berman AG, Goergen CJ, Margulies KB, Bedi K, Casas E, Swearingen AR, Brumbaugh J, Calve S, Neu CP. Nuclear deformation guides chromatin reorganization in cardiac development and disease. Nat Biomed Eng 2021; 5:1500-1516. [PMID: 34857921 PMCID: PMC9300284 DOI: 10.1038/s41551-021-00823-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 10/20/2021] [Indexed: 01/31/2023]
Abstract
In cardiovascular tissues, changes in the mechanical properties of the extracellular matrix are associated with cellular de-differentiation and with subsequent functional declines. However, the underlying mechanoreceptive mechanisms are largely unclear. Here, by generating high-resolution, full-field strain maps of cardiomyocyte nuclei during contraction in vitro, complemented with evidence from tissues from patients with cardiomyopathy and from mice with reduced cardiac performance, we show that cardiomyocytes establish a distinct nuclear organization during maturation, characterized by the reorganization of H3K9me3-marked chromatin towards the nuclear border. Specifically, we show that intranuclear tension is spatially correlated with H3K9me3-marked chromatin, that reductions in nuclear deformation (through environmental stiffening or through the disruption of complexes of the linker of nucleoskeleton and cytoskeleton) abrogate chromatin reorganization and lead to the dissociation of H3K9me3-marked chromatin from the nuclear periphery, and that the suppression of H3K9 methylation induces chromatin reorganization and reduces the expression of cardiac developmental genes. Overall, our findings indicate that, by integrating environmental mechanical cues, the nuclei of cardiomyocytes guide and stabilize the fate of cells through the reorganization of epigenetically marked chromatin.
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Affiliation(s)
- Benjamin Seelbinder
- Department of Mechanical Engineering, University of Colorado Boulder, Boulder (CO)
| | - Soham Ghosh
- Department of Mechanical Engineering, University of Colorado Boulder, Boulder (CO)
| | | | - Adrienne K. Scott
- Department of Mechanical Engineering, University of Colorado Boulder, Boulder (CO)
| | - Alycia G. Berman
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette (IN)
| | - Craig J. Goergen
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette (IN)
| | | | - Kenneth Bedi
- Cardiovascular Institute, University of Pennsylvania, Philadelphia (PA)
| | - Eduard Casas
- Department of Molecular, Cellular & Developmental Biology, University of Colorado Boulder, Boulder (CO)
| | - Alison R. Swearingen
- Department of Molecular, Cellular & Developmental Biology, University of Colorado Boulder, Boulder (CO)
| | - Justin Brumbaugh
- Department of Molecular, Cellular & Developmental Biology, University of Colorado Boulder, Boulder (CO)
| | - Sarah Calve
- Department of Mechanical Engineering, University of Colorado Boulder, Boulder (CO),Weldon School of Biomedical Engineering, Purdue University, West Lafayette (IN)
| | - Corey P. Neu
- Department of Mechanical Engineering, University of Colorado Boulder, Boulder (CO),Corresponding Author
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6
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Validation of the Reference Genes for the Gene Expression Studies in Different Cell Lines of Pig. BIOMED RESEARCH INTERNATIONAL 2021; 2021:5364190. [PMID: 34458368 PMCID: PMC8390154 DOI: 10.1155/2021/5364190] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 07/20/2021] [Indexed: 11/30/2022]
Abstract
Reverse transcription quantitative real-time polymerase chain reaction is one of the important methods to investigate gene expression in cells and tissues. However, if the data cannot be normalized with appropriate reference genes, the results may be unreliable. In this study, we detected the expression of 15 reference genes in three pig cell lines. The results showed that SDHA and ALDOA were the most stable reference genes in 3D4/21 cells. TOP2B, TBP, and PPIA were the most stable reference genes in PK-15 cells. SDHA and ALDOA were the most stable reference genes in IPEC-J2 cells. In addition, each cell line only needs to use two reference genes to standardize the expression of target genes. Taken together, this study provides a reference for different pig cell lines to select reference genes and also provides a theoretical basis for the use of these cell lines in related functional researches.
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7
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Zhao X, Zhu R, Wang Y, Qi J, Wang J, Bai L, Wang H, Wu Y, Hu H. Differentiation proliferative capacity of skeletal muscle satellite cells from Dapulian and Landrace pigs. ITALIAN JOURNAL OF ANIMAL SCIENCE 2020. [DOI: 10.1080/1828051x.2020.1769511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Xueyan Zhao
- Shandong Provincial Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Rongsheng Zhu
- Shandong Provincial Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Yanping Wang
- Shandong Provincial Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Jing Qi
- Shandong Provincial Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Jiying Wang
- Shandong Provincial Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Liya Bai
- Shandong Provincial Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Huaizhong Wang
- Shandong Provincial Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Ying Wu
- Shandong Provincial Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Hongmei Hu
- Shandong Provincial Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
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8
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Aging and biomarkers: Transcriptional levels evaluation of Osteopontin/miRNA-181a axis in hepatic tissue of rats in different age ranges. Exp Gerontol 2020; 133:110879. [DOI: 10.1016/j.exger.2020.110879] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 02/07/2020] [Accepted: 02/12/2020] [Indexed: 12/21/2022]
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9
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Cabiati M, Sapio A, Salvadori C, Burchielli S, Carlucci L, Mattii L, Del Ry S. Evaluation of transcriptional levels of the natriuretic peptides, endothelin-1, adrenomedullin, their receptors and long non-coding RNAs in rat cardiac tissue as cardiovascular biomarkers of aging. Peptides 2020; 123:170173. [PMID: 31629715 DOI: 10.1016/j.peptides.2019.170173] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 10/02/2019] [Accepted: 10/05/2019] [Indexed: 12/13/2022]
Abstract
Chronological age is considered one of the major risk factors for cardiovascular disease and mortality. The study aimed to evaluate the transcriptional levels of the natriuretic peptides (NP), endothelin (ET)-1, adrenomedullin (ADM), their receptors and long non-coding (Lnc) RNA MIAT, MALAT-1, CARMEN and XIST in rat cardiac tissue as cardiovascular biomarkers of aging. Three groups of male Wistar rats were studied: A (n = 6; young), B (n = 13; adult), C (n = 10; old). Total RNA was extracted from left ventricle and analyzed by Real-Time PCR. Echocardiographic and histological analyses were performed. A significant increase of Atrial NP (ANP) and Brain NP (BNP) mRNA was observed in C while C-type NP (CNP) remained in a steady-state in B and C; ET-1 mRNA increased significantly as a function of age. Any difference was observed for NP receptors. ETA expression was statistically lower in B than A while ETB were similar in all the three groups. The ADM showed an opposite trend to that of the other peptides decreasing significantly as a function of age and presenting a counter-regulation of calcitonin receptor-like receptor (CLR) and receptor activity modifying protein (RAMP)-2. LncRNA transcripts decreased significantly as a function of age except for XIST. ADM and LncRNA trend suggest that the animals are subjected to "successful aging" as also confirmed by histological analysis. Applying a multivariate logistic regression analysis, only LnANP (p = 0.003) and LnADM (p = 0.023) resulted significantly associated with aging identifying them, for the first time, as independent markers of aging. The study underlining the importance of a multi-label biomolecular approach in the evaluation of aging.
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Affiliation(s)
| | | | | | | | - Lucia Carlucci
- Institute of Life Science, Scuola Superiore Sant'Anna, Pisa, Italy
| | - Letizia Mattii
- Department of Human Morphology and Applied Biology, Medical Histology and Embryology Section, University of Pisa, Pisa, Italy
| | - Silvia Del Ry
- Institute of Clinical Physiology - CNR, Pisa, Italy; Institute of Life Science, Scuola Superiore Sant'Anna, Pisa, Italy.
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10
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Tuscany Sangiovese grape juice imparts cardioprotection by regulating gene expression of cardioprotective C-type natriuretic peptide. Eur J Nutr 2019; 59:2953-2968. [PMID: 31707544 DOI: 10.1007/s00394-019-02134-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 10/29/2019] [Indexed: 01/02/2023]
Abstract
PURPOSE A regular intake of red grape juice has cardioprotective properties, but its role on the modulation of natriuretic peptides (NPs), in particular of C-type NP (CNP), has not yet been proven. The aims were to evaluate: (1) in vivo the effects of long-term intake of Tuscany Sangiovese grape juice (SGJ) on the NPs system in a mouse model of myocardial infarction (MI); (2) in vitro the response to SGJ small RNAs of murine MCEC-1 under physiological and ischemic condition; (3) the activation of CNP/NPR-B/NPR-C in healthy human subjects after 7 days' SGJ regular intake. METHODS (1) C57BL/6J male and female mice (n = 33) were randomly subdivided into: SHAM (n = 7), MI (n = 15) and MI fed for 4 weeks with a normal chow supplemented with Tuscany SGJ (25% vol/vol, 200 µl/per day) (MI + SGJ, n = 11). Echocardiography and histological analyses were performed. Myocardial NPs transcriptional profile was investigated by Real-Time PCR. (2) MCEC-1 were treated for 24 h with a pool of SGJ small RNAs and cell viability under 24 h exposure to H2O2 was evaluated by MTT assay. (3) Human blood samples were collected from seven subjects before and after the 7 days' intake of Tuscany SGJ. NPs and miRNA transcriptional profile were investigated by Real-Time PCR in MCEC-1 and human blood. RESULTS Our experimental data, obtained in a multimodal pipeline, suggest that the long-term intake of SGJ promotes an adaptive response of the myocardium to the ischemic microenvironment through the modulation of the cardiac CNP/NPR-B/NPR-C system. CONCLUSIONS Our results open new avenue in the development of functional foods aimed at enhancing cardioprotection of infarcted hearts through action on the myocardial epigenome.
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11
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Selection of optimal reference genes for gene expression studies in chronically hypoxic rat heart. Mol Cell Biochem 2019; 461:15-22. [PMID: 31300984 DOI: 10.1007/s11010-019-03584-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 06/30/2019] [Indexed: 10/26/2022]
Abstract
Adaptation to chronic hypoxia renders the heart more tolerant to ischemia/reperfusion injury. To evaluate changes in gene expression after adaptation to chronic hypoxia by RT-qPCR, it is essential to select suitable reference genes. In a chronically hypoxic rat model, no specific reference genes have been identified in the myocardium. This study aimed to select the best reference genes in the left (LV) and right (RV) ventricles of chronically hypoxic and normoxic rats. Sprague-Dawley rats were adapted to continuous normobaric hypoxia (CNH; 12% O2 or 10% O2) for 3 weeks. The expression levels of candidate genes were assessed by RT-qPCR. The stability of genes was evaluated by NormFinder, geNorm and BestKeeper algorithms. The best five reference genes in the LV were Top1, Nupl2, Rplp1, Ywhaz, Hprt1 for the milder CNH and Top1, Ywhaz, Sdha, Nupl2, Tomm22 for the stronger CNH. In the RV, the top five genes were Hprt1, Nupl2, Gapdh, Top1, Rplp1 for the milder CNH and Tomm22, Gapdh, Hprt1, Nupl2, Top1 for the stronger CNH. This study provides validation of reference genes in LV and RV of CNH rats and shows that suitable reference genes differ in the two ventricles and depend on experimental protocol.
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Molina CE, Jacquet E, Ponien P, Muñoz-Guijosa C, Baczkó I, Maier LS, Donzeau-Gouge P, Dobrev D, Fischmeister R, Garnier A. Identification of optimal reference genes for transcriptomic analyses in normal and diseased human heart. Cardiovasc Res 2019; 114:247-258. [PMID: 29036603 DOI: 10.1093/cvr/cvx182] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 09/20/2017] [Indexed: 11/13/2022] Open
Abstract
Aims Quantitative real-time RT-PCR (RT-qPCR) has become the method of choice for mRNA quantification, but requires an accurate normalization based on the use of reference genes showing invariant expression across various pathological conditions. Only few data exist on appropriate reference genes for the human heart. The objective of this study was to determine a set of suitable reference genes in human atrial and ventricular tissues, from right and left cavities in control and in cardiac diseases. Methods and results We assessed the expression of 16 reference genes (ACTB, B2M, GAPDH, GUSB, HMBS, HPRT1, IPO8, PGK1, POLR2A, PPIA, RPLP0, TBP, TFRC, UBC, YWHAZ, 18S) in tissues from: right and left ventricles from healthy controls and heart failure (HF) patients; right-atrial tissue from patients in sinus rhythm with (SRd) or without (SRnd) atrial dilatation, patients with paroxysmal (pAF) or chronic (cAF) atrial fibrillation or with HF; and left-atrial tissue from patients in SR or cAF. Consensual analysis (by geNorm and Normfinder algorithms, BestKeeper software tool and comparative delta-Ct method) of the variability scores obtained for each reference gene expression shows that the most stably expressed genes are: GAPDH, GUSB, IPO8, POLR2A, and YWHAZ when comparing either right and left ventricle or ventricle from healthy controls and HF patients; GAPDH, IPO8, POLR2A, PPIA, and RPLP0 when comparing either right and left atrium or right atria from all pathological groups. ACTB, TBP, TFRC, and 18S genes were identified as the least stable. Conclusions The overall most stable reference genes across different heart cavities and disease conditions were GAPDH, IPO8, POLR2A and PPIA. YWHAZ or GUSB could be added to this set for some specific experiments. This study should provide useful guidelines for reference gene selection in RT-qPCR studies in human heart.
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Affiliation(s)
- Cristina E Molina
- Inserm, UMR-S 1180, University of Paris-Sud, Université Paris-Saclay, Châtenay-Malabry, France.,Institute of Pharmacology and Toxicology, Heart Research Center Göttingen, University Medical Center, Georg-August University Göttingen, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, Germany
| | - Eric Jacquet
- Institut de Chimie des Substances Naturelles, UPR 2301, CNRS, University of Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Prishila Ponien
- Institut de Chimie des Substances Naturelles, UPR 2301, CNRS, University of Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette, France
| | | | - Istvan Baczkó
- Department Pharmacology and Pharmacotherapy, University of Szeged, Hungary
| | - Lars S Maier
- Department Internal Medicine II, University Heart Center, University Hospital Regensburg, Regensburg, Germany
| | | | - Dobromir Dobrev
- West German Heart and Vascular Center, Institute of Pharmacology, University Duisburg-Essen, Essen, Germany
| | - Rodolphe Fischmeister
- Inserm, UMR-S 1180, University of Paris-Sud, Université Paris-Saclay, Châtenay-Malabry, France
| | - Anne Garnier
- Inserm, UMR-S 1180, University of Paris-Sud, Université Paris-Saclay, Châtenay-Malabry, France
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13
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Busato S, Mezzetti M, Logan P, Aguilera N, Bionaz M. What's the norm in normalization? A frightening note on the use of RT-qPCR in the livestock science. Gene 2019; 721S:100003. [PMID: 34531001 PMCID: PMC7285961 DOI: 10.1016/j.gene.2018.100003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 11/29/2018] [Accepted: 12/10/2018] [Indexed: 11/26/2022]
Abstract
Reverse-Transcription quantitative PCR (RT-qPCR) provides a valuable tool to study gene expression with exquisite sensitivity. To retain its inferential power, user-introduced technical variability must be reduced and accounted for. Selecting a set of stably expressed internal control genes (ICG), validated for each experimental condition/sample set, is widely accepted as a reliable way to normalize RT-qPCR data and account for said variability. Despite significant efforts in establishing standardized and resource-efficient normalization approaches, numerous recent reports have underlined deficiencies in the state of RT-qPCR normalization. Livestock science has benefitted tremendously from the use of RT-qPCR; however, the issue of lack of proper normalization likely affects this discipline as well. We thus decided to determine whether this is true, and to which extent. We conducted an in-depth analysis of all (225) RT-qPCR articles published in the six most prominent livestock journals in the field from 2013 to 2017. A quantitative scale was constructed, and values were assigned to each article based on the number of ICG used, the use of a publicly available algorithm to assess the reliability of ICG, and the reporting of pertinent information related to ICG (ranges from 0 = total noncompliance - to 100 = total compliance). Out of the surveyed group, only 10.7% of the publications obtained a score of 100, while the largest group (n = 158) was represented by articles that scored 0. Subdividing articles based on whether an algorithm to validate ICG was used (YAL) or not (NAL) revealed the use of a larger number of ICG to normalize RT-qPCR in the YAL group compared to NAL (1.4-fold more, 95% C.I.: 1.11–1.84) and was closer to the “gold standard” of three ICG. Using an algorithm also increased the diversity of ICG and significantly reduced the use of RNA18S, whose suitability as ICG has been thoroughly debated. These remarkably low normalization standards are likely to generate questionable results that can severely hinder the advance of transcriptomic studies in livestock science and related fields. Subpar normalization of reverse transcription qPCR was reported for the five major livestock journals over the period 2013-2017 The use of algorithms for validation led to a greater number of ICG used, and greater variety of ICGs The issue could be solved by editors by enforcing the use of the standardized MIQE guidelines for RT-qPCR
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Affiliation(s)
- Sebastiano Busato
- Department of Animal and Rangeland Sciences, Oregon State University, Corvallis, OR 97331, United States of America
| | - Matteo Mezzetti
- Istituto di Zootecnica, Facoltà di Agraria, Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy
| | - Paul Logan
- Department of Animal and Rangeland Sciences, Oregon State University, Corvallis, OR 97331, United States of America
| | - Nicolas Aguilera
- Department of Animal and Rangeland Sciences, Oregon State University, Corvallis, OR 97331, United States of America
| | - Massimo Bionaz
- Department of Animal and Rangeland Sciences, Oregon State University, Corvallis, OR 97331, United States of America.
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14
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Wang S, Wang B, He H, Sun A, Guo C. A new set of reference housekeeping genes for the normalization RT-qPCR data from the intestine of piglets during weaning. PLoS One 2018; 13:e0204583. [PMID: 30256841 PMCID: PMC6157878 DOI: 10.1371/journal.pone.0204583] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Accepted: 09/11/2018] [Indexed: 01/09/2023] Open
Abstract
The intestinal mucosal development of piglets (Sus scrofa) during the weaning stage is important to their disease susceptibility and later growth. Quantitative real-time PCR (RT-qPCR) is commonly used to screen for differentially expressed genes and, for accurate results, proper reference housekeeping genes are essential. Here we assessed the mRNA expression of 18 well-known candidate reference genes at different parts of the gastrointestinal tract (GIT) of piglets during the weaning process by RT-qPCR assay. GeNorm analysis revealed that B2M/HMBS/HPRT1 were the three most stable reference genes and GAPDH was the least stable gene in the duodenum, jejunum, ileum, colon, and whole GIT. BestKeeper analysis found that B2M/HMBS/PGK11, HMBS/B2M/HPRT1, B2M/HMBS/HSPCB, B2M/HPRT1/HMBS, and B2M/HMBS/HPRT1 were the most stable genes in the duodenum, jejunum, ileum, colon, and whole GIT, respectively, whereas GAPDH, B-actin, and 18S rRNA were the least stable genes at different parts of the GIT. To confirm the crucial role of appropriate housekeeping genes in obtaining reliable results, we analyzed the expression of ALP using each of the 18 reference genes to normalize the RT-qPCR data. We found that the expression levels of ALP normalized using the most stable reference genes (B2M/HMBS/HPRT1) differed greatly from the expression levels obtained when the data were normalized using the least stable genes (GAPDH, B-actin, and 18S). We concluded that B2M/HMBS/HPRT1 were the optimal reference genes for gene expression analysis by RT-qPCR in the intestinal mucosal development stages of piglets at weaning. Our findings provide a set of porcine housekeeping reference genes for studies of mRNA expression in different parts of the pig intestine.
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Affiliation(s)
- Shujin Wang
- College of Life Science and Technology, Southwest Miznu University, Chengdu, China.,Department of Molecular Genetics and Cell Biology, Maastricht University, Maastricht, The Netherlands
| | - Binxing Wang
- College of Life Science and Technology, Southwest Miznu University, Chengdu, China.,Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Southwest Minzu University, China
| | - Huan He
- College of Life Science and Technology, Southwest Miznu University, Chengdu, China.,Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Southwest Minzu University, China
| | - Aomin Sun
- Department of Molecular Genetics and Cell Biology, Maastricht University, Maastricht, The Netherlands
| | - Chunhua Guo
- College of Life Science and Technology, Southwest Miznu University, Chengdu, China.,Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Southwest Minzu University, China
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15
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Fu Y, Li L, Fang X, Li B, Zhao W, Zhou L, Ren S. Investigation of Eph‐ephrin A1 in the regulation of embryo implantation in sows. Reprod Domest Anim 2018; 53:1563-1574. [DOI: 10.1111/rda.13308] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 07/30/2018] [Indexed: 12/26/2022]
Affiliation(s)
- Yanfeng Fu
- Institute of Animal Science/Key Laboratory of Animal Breed Improvement and reproduction/Jiangsu Germplasm Resources Protection and Utilization Platform Jiangsu Academy of Agricultural Sciences Nanjing China
- Key Laboratory of Crop and Livestock Integrated FarmingMinistry of Agriculture and Rural Affairs Nanjing China
| | - Lan Li
- Institute of Animal Immune Engineering Jiangsu Academy of Agricultural Sciences Nanjing China
| | - Xiaomin Fang
- Institute of Animal Science/Key Laboratory of Animal Breed Improvement and reproduction/Jiangsu Germplasm Resources Protection and Utilization Platform Jiangsu Academy of Agricultural Sciences Nanjing China
- Key Laboratory of Crop and Livestock Integrated FarmingMinistry of Agriculture and Rural Affairs Nanjing China
| | - Bixia Li
- Institute of Animal Science/Key Laboratory of Animal Breed Improvement and reproduction/Jiangsu Germplasm Resources Protection and Utilization Platform Jiangsu Academy of Agricultural Sciences Nanjing China
| | - Weimin Zhao
- Institute of Animal Science/Key Laboratory of Animal Breed Improvement and reproduction/Jiangsu Germplasm Resources Protection and Utilization Platform Jiangsu Academy of Agricultural Sciences Nanjing China
| | - Lisheng Zhou
- Institute of Animal Science/Key Laboratory of Animal Breed Improvement and reproduction/Jiangsu Germplasm Resources Protection and Utilization Platform Jiangsu Academy of Agricultural Sciences Nanjing China
| | - Shouwen Ren
- Institute of Animal Science/Key Laboratory of Animal Breed Improvement and reproduction/Jiangsu Germplasm Resources Protection and Utilization Platform Jiangsu Academy of Agricultural Sciences Nanjing China
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16
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Zhou Z, Lankhuizen IM, van Beusekom HM, Cheng C, Duncker DJ, Merkus D. Uridine Adenosine Tetraphosphate-Induced Coronary Relaxation Is Blunted in Swine With Pressure Overload: A Role for Vasoconstrictor Prostanoids. Front Pharmacol 2018; 9:255. [PMID: 29632487 PMCID: PMC5879110 DOI: 10.3389/fphar.2018.00255] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 03/07/2018] [Indexed: 12/27/2022] Open
Abstract
Plasma levels of the vasoactive substance uridine adenosine tetraphosphate (Up4A) are elevated in hypertensive patients and Up4A-induced vascular contraction is exacerbated in various arteries isolated from hypertensive animals, suggesting a potential role of Up4A in development of hypertension. We previously demonstrated that Up4A produced potent and partially endothelium-dependent relaxation in the porcine coronary microvasculature. Since pressure-overload is accompanied by structural abnormalities in the coronary microvasculature as well as by endothelial dysfunction, we hypothesized that pressure-overload blunts the coronary vasodilator response to Up4A, and that the involvement of purinergic receptors and endothelium-derived factors is altered. The effects of Up4A were investigated using wire-myography in isolated coronary small arteries from Sham-operated swine and swine with prolonged (8 weeks) pressure overload of the left ventricle induced by aortic banding (AoB). Expression of purinergic receptors and endothelium-derived factors was assessed in isolated coronary small arteries using real-time PCR. Up4A (10-9 to 10-5 M) failed to produce contraction in isolated coronary small arteries from either Sham or AoB swine, but produced relaxation in preconstricted arteries, which was significantly blunted in AoB compared to Sham. Blockade of purinergic P1, and P2 receptors attenuated Up4A-induced coronary relaxation more, while the effect of P2X1-blockade was similar and the effects of A2A- and P2Y1-blockade were reduced in AoB as compared to Sham. mRNA expression of neither A1, A2, A3, nor P2X1, P2X7, P2Y1, P2Y2, nor P2Y6-receptors was altered in AoB as compared to Sham, while P2Y12 expression was higher in AoB. eNOS inhibition attenuated Up4A-induced coronary relaxation in both Sham and AoB. Additional blockade of cyclooxygenase enhanced Up4A-induced coronary relaxation in AoB but not Sham swine, suggesting the involvement of vasoconstrictor prostanoids. In endothelium-denuded coronary small arteries from normal swine, thromboxane synthase (TxS) inhibition enhanced relaxation to Up4A compared to endothelium-intact arteries, to a similar extent as P2Y12 inhibition, while the combination inhibition of P2Y12 and TxS had no additional effect. In conclusion, Up4A-induced coronary relaxation is blunted in swine with AoB, which appears to be due to the production of a vasoconstrictor prostanoid, likely thromboxane A2.
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Affiliation(s)
- Zhichao Zhou
- Division of Experimental Cardiology, Department of Cardiology, Thoraxcenter, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, Netherlands.,Cardiovascular Research School Erasmus University Rotterdam, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, Netherlands.,Division of Cardiology, Department of Medicine, Karolinska University Hospital, Karolinska Institutet, Solna, Sweden
| | - Inge M Lankhuizen
- Division of Experimental Cardiology, Department of Cardiology, Thoraxcenter, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, Netherlands.,Cardiovascular Research School Erasmus University Rotterdam, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Heleen M van Beusekom
- Division of Experimental Cardiology, Department of Cardiology, Thoraxcenter, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, Netherlands.,Cardiovascular Research School Erasmus University Rotterdam, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Caroline Cheng
- Division of Experimental Cardiology, Department of Cardiology, Thoraxcenter, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, Netherlands.,Cardiovascular Research School Erasmus University Rotterdam, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, Netherlands.,Department of Nephrology and Hypertension, University Medical Center Utrecht, Utrecht, Netherlands
| | - Dirk J Duncker
- Division of Experimental Cardiology, Department of Cardiology, Thoraxcenter, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, Netherlands.,Cardiovascular Research School Erasmus University Rotterdam, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Daphne Merkus
- Division of Experimental Cardiology, Department of Cardiology, Thoraxcenter, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, Netherlands.,Cardiovascular Research School Erasmus University Rotterdam, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, Netherlands
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17
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Worke LJ, Barthold JE, Seelbinder B, Novak T, Main RP, Harbin SL, Neu CP. Densification of Type I Collagen Matrices as a Model for Cardiac Fibrosis. Adv Healthc Mater 2017; 6. [PMID: 28881428 DOI: 10.1002/adhm.201700114] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 06/10/2017] [Indexed: 12/17/2022]
Abstract
Cardiac fibrosis is a disease state characterized by excessive collagenous matrix accumulation within the myocardium that can lead to ventricular dilation and systolic failure. Current treatment options are severely lacking due in part to the poor understanding of the complexity of molecular pathways involved in cardiac fibrosis. To close this gap, in vitro model systems that recapitulate the defining features of the fibrotic cellular environment are in need. Type I collagen, a major cardiac extracellular matrix protein and the defining component of fibrotic depositions, is an attractive choice for a fibrosis model, but demonstrates poor mechanical strength due to solubility limits. However, plastic compression of collagen matrices is shown to significantly increase its mechanical properties. Here, confined compression of oligomeric, type I collagen matrices is utilized to resemble defining hallmarks seen in fibrotic tissue such as increased collagen content, fibril thickness, and bulk compressive modulus. Cardiomyocytes seeded on compressed matrices show a strong beating abrogation as observed in cardiac fibrosis. Gene expression analysis of selected fibrosis markers indicates fibrotic activation and cardiomyocyte maturation with regard to the existing literature. With these results, a promising first step toward a facile heart-on-chip model is presented to study cardiac fibrosis.
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Affiliation(s)
- Logan J. Worke
- Weldon School of Biomedical Engineering; Purdue University; West Lafayette IN USA 47906
| | - Jeanne E. Barthold
- Department of Mechanical Engineering; University of Colorado Boulder; Boulder CO USA 80309
| | - Benjamin Seelbinder
- Department of Mechanical Engineering; University of Colorado Boulder; Boulder CO USA 80309
| | - Tyler Novak
- Weldon School of Biomedical Engineering; Purdue University; West Lafayette IN USA 47906
| | - Russell P. Main
- Weldon School of Biomedical Engineering; Purdue University; West Lafayette IN USA 47906
- Department of Basic Medical Sciences; Purdue University; West Lafayette IN USA 47906
| | - Sherry L. Harbin
- Weldon School of Biomedical Engineering; Purdue University; West Lafayette IN USA 47906
- Department of Basic Medical Sciences; Purdue University; West Lafayette IN USA 47906
| | - Corey P. Neu
- Weldon School of Biomedical Engineering; Purdue University; West Lafayette IN USA 47906
- Department of Mechanical Engineering; University of Colorado Boulder; Boulder CO USA 80309
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18
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Zhou Z, Sorop O, de Beer VJ, Heinonen I, Cheng C, Jan Danser AH, Duncker DJ, Merkus D. Altered purinergic signaling in uridine adenosine tetraphosphate-induced coronary relaxation in swine with metabolic derangement. Purinergic Signal 2017; 13:319-329. [PMID: 28540569 PMCID: PMC5563292 DOI: 10.1007/s11302-017-9563-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 04/24/2017] [Indexed: 12/13/2022] Open
Abstract
We previously demonstrated that uridine adenosine tetraphosphate (Up4A) induces potent and partially endothelium-dependent relaxation in the healthy porcine coronary microvasculature. We subsequently showed that Up4A-induced porcine coronary relaxation was impaired via downregulation of P1 receptors after myocardial infarction. In view of the deleterious effect of metabolic derangement on vascular function, we hypothesized that the coronary vasodilator response to Up4A is impaired in metabolic derangement, and that the involvement of purinergic receptor subtypes and endothelium-derived vasoactive factors (EDVFs) is altered. Coronary small arteries, dissected from the apex of healthy swine and swine 6 months after induction of diabetes with streptozotocin and fed a high-fat diet, were mounted on wire myographs. Up4A (10-9-10-5 M)-induced coronary relaxation was maintained in swine with metabolic derangement compared to normal swine, despite impaired endothelium-dependent relaxation to bradykinin and despite blunted P2X7 receptor and NO-mediated vasodilator influences of Up4A. Moreover, a thromboxane-mediated vasoconstrictor influence was unmasked. In contrast, an increased Up4A-mediated vasodilator influence via P2Y1 receptors was observed, while, in response to Up4A, cytochrome P450 2C9 switched from producing vasoconstrictor to vasodilator metabolites in swine with metabolic derangement. Coronary vascular expression of A2A and P2X7 receptors as well as eNOS, as assessed with real-time PCR, was reduced in swine with metabolic derangement. In conclusion, although the overall coronary vasodilator response to Up4A was maintained in swine with metabolic derangement, the involvement of purinergic receptor subtypes and EDVF was markedly altered, revealing compensatory mechanisms among signaling pathways in Up4A-mediated coronary vasomotor influence in the early phase of metabolic derangement. Future studies are warranted to investigate the effects of severe metabolic derangement on coronary responses to Up4A.
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Affiliation(s)
- Zhichao Zhou
- Division of Experimental Cardiology, Department of Cardiology, Thoraxcenter, Cardiovascular Research School COEUR, Erasmus MC, University Medical Center Rotterdam, PO Box 2040, 3000 CA, Rotterdam, The Netherlands
- Unit of Cardiology, Department of Medicine, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Oana Sorop
- Division of Experimental Cardiology, Department of Cardiology, Thoraxcenter, Cardiovascular Research School COEUR, Erasmus MC, University Medical Center Rotterdam, PO Box 2040, 3000 CA, Rotterdam, The Netherlands
| | - Vincent J de Beer
- Division of Experimental Cardiology, Department of Cardiology, Thoraxcenter, Cardiovascular Research School COEUR, Erasmus MC, University Medical Center Rotterdam, PO Box 2040, 3000 CA, Rotterdam, The Netherlands
| | - Ilkka Heinonen
- Division of Experimental Cardiology, Department of Cardiology, Thoraxcenter, Cardiovascular Research School COEUR, Erasmus MC, University Medical Center Rotterdam, PO Box 2040, 3000 CA, Rotterdam, The Netherlands
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
- Department of Clinical Physiology and Nuclear Medicine, University of Turku, Turku, Finland
| | - Caroline Cheng
- Division of Experimental Cardiology, Department of Cardiology, Thoraxcenter, Cardiovascular Research School COEUR, Erasmus MC, University Medical Center Rotterdam, PO Box 2040, 3000 CA, Rotterdam, The Netherlands
- Department of Nephrology & Hypertension, University Medical Center Utrecht, Utrecht, The Netherlands
| | - A H Jan Danser
- Division of Pharmacology, Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Dirk J Duncker
- Division of Experimental Cardiology, Department of Cardiology, Thoraxcenter, Cardiovascular Research School COEUR, Erasmus MC, University Medical Center Rotterdam, PO Box 2040, 3000 CA, Rotterdam, The Netherlands
| | - Daphne Merkus
- Division of Experimental Cardiology, Department of Cardiology, Thoraxcenter, Cardiovascular Research School COEUR, Erasmus MC, University Medical Center Rotterdam, PO Box 2040, 3000 CA, Rotterdam, The Netherlands.
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19
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Li M, Rao M, Chen K, Zhou J, Song J. Selection of reference genes for gene expression studies in heart failure for left and right ventricles. Gene 2017; 620:30-35. [DOI: 10.1016/j.gene.2017.04.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 02/05/2017] [Accepted: 04/04/2017] [Indexed: 10/19/2022]
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20
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Della Latta V, Cabiati M, Burchielli S, Frenzilli G, Bernardeschi M, Cecchettini A, Viglione F, Morales MA, Del Ry S. Lung inflammation after bleomycin treatment in mice: Selection of an accurate normalization strategy for gene expression analysis in an ex-vivo and in-vitro model. Int J Biochem Cell Biol 2017; 88:145-154. [PMID: 28526615 DOI: 10.1016/j.biocel.2017.05.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 04/10/2017] [Accepted: 05/08/2017] [Indexed: 01/01/2023]
Abstract
Pulmonary fibrosis (PF) is the most common and aggressive interstitial lung disease, characterized by a patchy development of fibrosis leading to progressive destruction of the normal lung architecture which is preceded by an inflammatory process. Gene expression studies are important to understand the development of PF but the accuracy and reproducibility of Real-Time PCR depend on appropriate normalization strategies. This study aimed to analyze the expression variability of eight commonly used reference genes during the initial inflammatory phase of bleomycin-induced PF in a mouse model and to verify whether the selected reference genes could be applied to an in-vitro model of BLM-treated primary murine lung fibroblasts. Wild-type C57BL/6 mice (n=40) were used. Real-Time PCR was carried out on lung tissue of mice either BLM (BLM-tm) or physiological solution-treated (PSS-tm), and in primary lung fibroblasts, isolated from healthy C57BL/6 mice. Histological analysis was performed to confirm the inflammation development. During inflammation, the most stable genes resulted: PPIA, HPRT-1 and SDHA for both models; the normalization strategy was tested analyzing mRNA expression of PTX-3 and TNF-α which resulted up-regulated both in ex-vivo and in-vitro with respect to PSS-tm/fibroblasts. Histological analysis supported the results. This study identified a new set of reference genes expressed both in the in-vitro and ex-vivo models. A higher expression of both markers in BLM-tm with respect to PSS-tm indicated that BLM might lead to increased PTX-3 local production by a co-regulation with TNF-α at lung level.
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Affiliation(s)
- Veronica Della Latta
- CNR Institute of Clinical Physiology, Laboratory of Biochemistry and Molecular Biology, Pisa, Italy
| | - Manuela Cabiati
- CNR Institute of Clinical Physiology, Laboratory of Biochemistry and Molecular Biology, Pisa, Italy
| | | | - Giada Frenzilli
- University of Pisa, Dept. Experimental and Clinical Medicine, Pisa, Italy
| | | | | | - Federica Viglione
- CNR Institute of Clinical Physiology, Laboratory of Biochemistry and Molecular Biology, Pisa, Italy
| | - Maria-Aurora Morales
- CNR Institute of Clinical Physiology, Laboratory of Biochemistry and Molecular Biology, Pisa, Italy
| | - Silvia Del Ry
- CNR Institute of Clinical Physiology, Laboratory of Biochemistry and Molecular Biology, Pisa, Italy.
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Wang YK, Li X, Song ZQ, Yang CX. Methods of RNA preparation affect mRNA abundance quantification of reference genes in pig maturing oocytes. Reprod Domest Anim 2017; 52:722-730. [PMID: 28407308 DOI: 10.1111/rda.12972] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 02/25/2017] [Indexed: 11/28/2022]
Abstract
To ensure accurate normalization and quantification of target RNA transcripts using reverse transcription quantitative polymerase chain reaction (RT-qPCR), most studies focus on the identification of stably expressed gene(s) as internal reference. However, RNA preparation methods could also be an important factor, especially for test samples of limited quantity (e.g. oocytes). In this study, we aimed to select appropriate reference gene(s), and evaluate the effect of RNA preparation methods on gene expression quantification in porcine oocytes and cumulus cells during in vitro maturation. Expression profiles of seven genes (GAPDH, 18S, YWHAG, BACT, RPL4, HPRT1 and PPIA) were examined, on RNA samples extracted from cumulus cells (RNeasy Kit) and oocytes (RNeasy Kit and Lysis Kit) during in vitro maturation, respectively. Interestingly, different RNA preparation methods were found to potentially affect the quantification of reference gene expression in pig oocytes cultured in vitro. After geNorm analyses, the most suitable genes for normalization were identified, GAPDH/18S for cumulus cells and YWHAG/BACT for oocytes, respectively. Thus, our results provide useful data and information on the selection of better reference genes and RNA preparation method for related functional studies.
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Affiliation(s)
- Y-K Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - X Li
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - Z-Q Song
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - C-X Yang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
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22
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Whole Blood Transcriptome Sequencing Reveals Gene Expression Differences between Dapulian and Landrace Piglets. BIOMED RESEARCH INTERNATIONAL 2017; 2016:7907980. [PMID: 28105431 PMCID: PMC5220446 DOI: 10.1155/2016/7907980] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 11/04/2016] [Accepted: 11/27/2016] [Indexed: 11/18/2022]
Abstract
There is little genomic information regarding gene expression differences at the whole blood transcriptome level of different pig breeds at the neonatal stage. To solve this, we characterized differentially expressed genes (DEGs) in the whole blood of Dapulian (DPL) and Landrace piglets using RNA-seq (RNA-sequencing) technology. In this study, 83 DEGs were identified between the two breeds. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses identified immune response and metabolism as the most commonly enriched terms and pathways in the DEGs. Genes related to immunity and lipid metabolism were more highly expressed in the DPL piglets, while genes related to body growth were more highly expressed in the Landrace piglets. Additionally, the DPL piglets had twofold more single nucleotide polymorphisms (SNPs) and alternative splicing (AS) than the Landrace piglets. These results expand our knowledge of the genes transcribed in the piglet whole blood of two breeds and provide a basis for future research of the molecular mechanisms underlying the piglet differences.
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23
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Hu J, Yang D, Wang H, Li C, Zeng Y, Chen W. CpG Oligodeoxynucleotides Induce Differential Cytokine and Chemokine Gene Expression Profiles in Dapulian and Landrace Pigs. Front Microbiol 2016; 7:1992. [PMID: 28018321 PMCID: PMC5156958 DOI: 10.3389/fmicb.2016.01992] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Accepted: 11/28/2016] [Indexed: 12/16/2022] Open
Abstract
Oligodeoxynucleotides containing unmethylated CpG motifs (CpG ODN) mimic the immunostimulatory activity of microbial DNA by interacting with Toll-like receptor 9 (TLR9) to activate both the innate and adaptive immune responses in different species. However, few studies have been published to compare the effects of CpG ODN on different pig breeds. Therefore, in this study, whole blood gene expression profiles of DPL and Landrace pigs treated with CpG ODN were studied using RNA-seq technology. Five Hundred differentially expressed genes (DEGs) were identified between the two breeds. DPL pigs had significantly higher number of immune-relevant DEGs than the Landrace pigs after CpG ODN treatment. Pathway analysis showed that cytokine-cytokine receptor interaction and chemokine signaling pathway were the major enriched pathways of the immune-relevant DEGs. Further in vitro experiments showed that PBMCs of the DPL pigs had significantly higher levels of TLR9 mRNA than those of the Landrace pigs, both before and after CpG ODN stimulation. Cytokine and chemokine induction in the PBMCs of both breeds were also measured after CpG ODN stimulation. Our data showed that mRNA levels of cytokines (IFNα, IL8, IL12 p40) and chemokines (CXCL9, CXCL13) were significantly higher in the PBMCs of the DPL pigs than those of the Landrace pigs. Taken together, our data provide new information regarding the pig breed difference in response to CpG ODN stimulation and that higher levels of TLR9 mRNA in DPL pigs may be a major contributor for disease resistance.
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Affiliation(s)
| | | | | | | | - Yongqing Zeng
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, Shandong Agricultural UniversityTai'an, China
| | - Wei Chen
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, Shandong Agricultural UniversityTai'an, China
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24
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Niu G, Yang Y, Zhang Y, Hua C, Wang Z, Tang Z, Li K. Identifying suitable reference genes for gene expression analysis in developing skeletal muscle in pigs. PeerJ 2016; 4:e2428. [PMID: 27994956 PMCID: PMC5157201 DOI: 10.7717/peerj.2428] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 08/11/2016] [Indexed: 11/20/2022] Open
Abstract
The selection of suitable reference genes is crucial to accurately evaluate and normalize the relative expression level of target genes for gene function analysis. However, commonly used reference genes have variable expression levels in developing skeletal muscle. There are few reports that systematically evaluate the expression stability of reference genes across prenatal and postnatal developing skeletal muscle in mammals. Here, we used quantitative PCR to examine the expression levels of 15 candidate reference genes (ACTB, GAPDH, RNF7, RHOA, RPS18, RPL32, PPIA, H3F3, API5, B2M, AP1S1, DRAP1, TBP, WSB, and VAPB) in porcine skeletal muscle at 26 different developmental stages (15 prenatal and 11 postnatal periods). We evaluated gene expression stability using the computer algorithms geNorm, NormFinder, and BestKeeper. Our results indicated that GAPDH and ACTB had the greatest variability among the candidate genes across prenatal and postnatal stages of skeletal muscle development. RPS18, API5, and VAPB had stable expression levels in prenatal stages, whereas API5, RPS18, RPL32, and H3F3 had stable expression levels in postnatal stages. API5 and H3F3 expression levels had the greatest stability in all tested prenatal and postnatal stages, and were the most appropriate reference genes for gene expression normalization in developing skeletal muscle. Our data provide valuable information for gene expression analysis during different stages of skeletal muscle development in mammals. This information can provide a valuable guide for the analysis of human diseases.
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Affiliation(s)
- Guanglin Niu
- The Key Laboratory for Domestic Animal Genetic Resources and Breeding of Ministry of Agriculture of China, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China.,Agricultural Genome Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Yalan Yang
- The Key Laboratory for Domestic Animal Genetic Resources and Breeding of Ministry of Agriculture of China, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China.,Agricultural Genome Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - YuanYuan Zhang
- The Key Laboratory for Domestic Animal Genetic Resources and Breeding of Ministry of Agriculture of China, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Chaoju Hua
- The Key Laboratory for Domestic Animal Genetic Resources and Breeding of Ministry of Agriculture of China, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zishuai Wang
- The Key Laboratory for Domestic Animal Genetic Resources and Breeding of Ministry of Agriculture of China, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhonglin Tang
- The Key Laboratory for Domestic Animal Genetic Resources and Breeding of Ministry of Agriculture of China, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China.,Agricultural Genome Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Kui Li
- The Key Laboratory for Domestic Animal Genetic Resources and Breeding of Ministry of Agriculture of China, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China.,Agricultural Genome Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
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25
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Del Ry S, Cabiati M, Della Latta V, Zimbone S, Natale M, Lazzerini PE, Diciolla F, Capecchi PL, Laghi-Pasini F, Morales MA. Adenosine receptors expression in cardiac fibroblasts of patients with left ventricular dysfunction due to valvular disease. J Recept Signal Transduct Res 2016; 37:283-289. [PMID: 27807997 DOI: 10.1080/10799893.2016.1247860] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
CONTEXT Adenosine restores tissue homeostasis through the interaction with its membrane receptors (AR) expressed on fibroblasts, endothelial cells, smooth muscle cells and leukocytes, but their modulation is still not fully understood. OBJECTIVE To evaluate whether changes in the transcriptomic profiling of adenosine receptors (AR) occur in cardiac fibroblasts (CF) of patients (pts) with LV dysfunction due to valvular disease (V). The secondary aim was to compare in the same pts the results obtained at cardiac level with those found in circulating leukocytes. MATERIALS AND METHODS Auricle fragments were excised from 13 pts during prosthetic implantation while blood samples were collected from pts (n = 9) and from healthy subjects (C, n = 7). In 7 pts cardiac biopsy and blood samples were taken simultaneously. A human CF atrial cell line (cc) was used as control. RESULTS AR higher levels of mRNA expression were observed with real-time PCR in Vpts compared to C, both at cardiac (overexpression A1R:98%, A2AR:63%, A2BR:87%, A3R:85%, CD39:92%, CD73:93%) and at peripheral level (A1R vs C: p = .0056; A2AR vs C: p = .0173; A2BR vs C: p = .0272; A3R vs C: p = .855; CD39 vs C: p = .0001; CD73 vs C: p = .0091). CONCLUSION All AR subtypes were overexpressed in CF of Vpts. The same trends in AR expression at cardiac level was assessed on circulating leukocytes, thus opening a new road to minimally invasive studies of the adenosinergic system in cardiac patients.
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Affiliation(s)
- Silvia Del Ry
- a CNR, Institute of Clinical Physiology , Pisa , Italy
| | | | - Veronica Della Latta
- a CNR, Institute of Clinical Physiology , Pisa , Italy.,b Department of Medical Sciences, Surgery and Neurosciences , University of Siena , Siena , Italy
| | - Stefania Zimbone
- b Department of Medical Sciences, Surgery and Neurosciences , University of Siena , Siena , Italy
| | - Mariarita Natale
- b Department of Medical Sciences, Surgery and Neurosciences , University of Siena , Siena , Italy
| | - Pietro Enea Lazzerini
- b Department of Medical Sciences, Surgery and Neurosciences , University of Siena , Siena , Italy
| | - Francesco Diciolla
- c Department of Heart, Vessels and Thorax , University Hospital of Siena , Siena , Italy
| | - Pier Leopoldo Capecchi
- b Department of Medical Sciences, Surgery and Neurosciences , University of Siena , Siena , Italy
| | - Franco Laghi-Pasini
- b Department of Medical Sciences, Surgery and Neurosciences , University of Siena , Siena , Italy
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26
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Cabiati M, Burchielli S, Matteucci M, Svezia B, Panchetti L, Caselli C, Prescimone T, Morales MA, Del Ry S. Dipyridamole-induced C-type natriuretic peptide mRNA overexpression in a minipig model of pacing-induced left ventricular dysfunction. Peptides 2015; 64:67-73. [PMID: 25613228 DOI: 10.1016/j.peptides.2015.01.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 01/09/2015] [Accepted: 01/09/2015] [Indexed: 12/23/2022]
Abstract
Dipyridamole (DP) restores ischemic tissue blood flow stimulating angiogenesis in eNOS-dependent pathways. C-type natriuretic peptide (CNP) is expected to mimic the migration-stimulatory effect of NO via a cGMP-dependent mechanism. Aim of this study was to assess the role of concomitant treatment with DP on CNP levels in blood and myocardial tissue of minipigs with left ventricular dysfunction (LVD) induced by pacing at 200bpm in the right ventricular apex. Minipigs with DP therapy (DP+, n=4) or placebo (DP-, n=4) and controls (C-SHAM, n=4) underwent 2D-EchoDoppler examination and blood collection before and after 4 weeks of pacing, when cardiac tissue was collected. Histological/immunohistochemical analyses were performed. CNP levels were determined by radioimmunoassay; cardiac CNP, BNP, natriuretic receptors expression by Real-Time PCR. After pacing, cardiac parameters resulted less impaired in DP+ compared to DP-. Histological sections presented normal morphology while the arteriolar density resulted: C-SHAM: 9.0±1.2; DP-: 4.9±0.3; DP+: 6.5±0.6number/mm(2); C-SHAM vs DP- and DP+ p=0.004, p=0.04, respectively. CNP mRNA resulted lower in DP- compared to C-SHAM and DP+ as well as NPR-B (p=0.011, DP- vs DP+). Both NPR-A/NPR-C mRNA expressions were significantly (p<0.001) lower both in DP- and DP+ compared to C-SHAM. BNP mRNA was higher in LVD. CNP plasma levels showed a similar trend with respect to gene expression (C-SHAM: 30.5±15; DP-: 18.6±5.5; DP+: 21.2±4.7pg/ml). These data suggest that DP may serve as a preconditioning agent to increase the protective CNP-mediated endocrine response in LVD. This response, mediated by its specific receptor NPR-B, may offer new insights into molecular targets for treatment of LVD.
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MESH Headings
- Animals
- Cardiac Pacing, Artificial
- Dipyridamole/pharmacology
- Dipyridamole/therapeutic use
- Disease Models, Animal
- Heart/drug effects
- Natriuretic Peptide, C-Type/genetics
- Natriuretic Peptide, C-Type/metabolism
- Protective Agents/pharmacology
- Protective Agents/therapeutic use
- RNA, Messenger/metabolism
- Swine
- Swine, Miniature
- Up-Regulation
- Ventricular Dysfunction, Left/drug therapy
- Ventricular Dysfunction, Left/etiology
- Ventricular Dysfunction, Left/genetics
- Ventricular Dysfunction, Left/metabolism
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Affiliation(s)
- M Cabiati
- CNR Institute of Clinical Physiology, CNR, Italy
| | | | - M Matteucci
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
| | - B Svezia
- CNR Institute of Clinical Physiology, CNR, Italy; Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
| | - L Panchetti
- Fondazione Toscana G. Monasterio, Pisa, Italy
| | - C Caselli
- CNR Institute of Clinical Physiology, CNR, Italy
| | - T Prescimone
- CNR Institute of Clinical Physiology, CNR, Italy
| | - M A Morales
- CNR Institute of Clinical Physiology, CNR, Italy
| | - S Del Ry
- CNR Institute of Clinical Physiology, CNR, Italy.
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27
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Selection of appropriate reference genes for RT-qPCR analysis in Berkshire, Duroc, Landrace, and Yorkshire pigs. Gene 2014; 558:152-8. [PMID: 25550045 DOI: 10.1016/j.gene.2014.12.052] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 12/22/2014] [Accepted: 12/25/2014] [Indexed: 01/21/2023]
Abstract
Reverse transcription quantitative real-time polymerase chain reaction (RT-qPCR) is the most reliable molecular biology technique for assessment of mRNA expression levels. However, to obtain the accurate RT-qPCR results, the expression levels of genes of interest should be normalized with appropriate reference genes and optimal numbers of reference genes. In this study, we assessed the expression stability of 15 well-known candidate reference genes (ACTB, ALDOA, B2M, GAPDH, HPAR1, HSPCB, PGK1, POLR2G, PPIA, RPL4, RPS18, SDHA, TBP, TOP2B, and YWHAZ) in seven body tissues (liver, lung, kidney, spleen, stomach, small intestine, and large intestine) of Berkshire, Landrace, Duroc, and Yorkshire pigs using three excel-based programs, geNorm, NormFinder, and BestKeeper. Combination analysis of these three programs showed that the stable and appropriate reference genes are PPIA, TBP, and HSPCB in Berkshire pigs; PPIA, TBP, RPL4, and RPS18 in Landrace pigs; PPIA and TBP in Duroc pigs; and PPIA, TOP2B, RPL4, and RPS18 in Yorkshire pigs. Because the four pig breeds had different suitable reference genes, the selection of appropriate reference genes is essential in RT-qPCR analyses. Taken together, our data could help to select reliable reference genes for the normalization of expression levels of various target genes in pigs.
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28
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Mishra S, Reznikov V, Maltsev VA, Undrovinas NA, Sabbah HN, Undrovinas A. Contribution of sodium channel neuronal isoform Nav1.1 to late sodium current in ventricular myocytes from failing hearts. J Physiol 2014; 593:1409-27. [PMID: 25772296 DOI: 10.1113/jphysiol.2014.278259] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 10/03/2014] [Indexed: 01/06/2023] Open
Abstract
KEY POINTS Late Na(+) current (INaL) contributes to action potential remodelling and Ca(2+)/Na(+) changes in heart failure. The molecular identity of INaL remains unclear. The contributions of different Na(+) channel isoforms, apart from the cardiac isoform, remain unknown. We discovered and characterized a substantial contribution of neuronal isoform Nav1.1 to INaL. This new component is physiologically relevant to the control of action potential shape and duration, as well as to cell Ca(2+) dynamics, especially in heart failure. ABSTRACT Late Na(+) current (INaL) contributes to action potential (AP) duration and Ca(2+) handling in cardiac cells. Augmented INaL was implicated in delayed repolarization and impaired Ca(2+) handling in heart failure (HF). We tested if Na(+) channel (Nav) neuronal isoforms contribute to INaL and Ca(2+) cycling defects in HF in 17 dogs in which HF was achieved via sequential coronary artery embolizations. Six normal dogs served as control. Transient Na(+) current (INaT ) and INaL in left ventricular cardiomyocytes (VCMs) were recorded by patch clamp while Ca(2+) dynamics was monitored using Fluo-4. Virally delivered short interfering RNA (siRNA) ensured Nav1.1 and Nav1.5 post-transcriptional silencing. The expression of six Navs was observed in failing VCMs as follows: Nav1.5 (57.3%) > Nav1.2 (15.3%) > Nav1.1 (11.6%) > Nav2.1 (10.7%) > Nav1.3 (4.6%) > Nav1.6 (0.5%). Failing VCMs showed up-regulation of Nav1.1 expression, but reduction of Nav1.6 mRNA. A similar Nav expression pattern was found in samples from human hearts with ischaemic HF. VCMs with silenced Nav1.5 exhibited residual INaT and INaL (∼30% of control) with rightwardly shifted steady-state activation and inactivation. These currents were tetrodotoxin sensitive but resistant to MTSEA, a specific Nav1.5 blocker. The amplitude of the tetrodotoxin-sensitive INaL was 0.1709 ± 0.0299 pA pF(-1) (n = 7 cells) and the decay time constant was τ = 790 ± 76 ms (n = 5). This INaL component was lacking in VCMs with a silenced Nav1.1 gene, indicating that, among neuronal isoforms, Nav1.1 provides the largest contribution to INaL. At -10 mV this contribution is ∼60% of total INaL. Our further experimental and in silico examinations showed that this new Nav1.1 INaL component contributes to Ca(2+) accumulation in failing VCMs and modulates AP shape and duration. In conclusion, we have discovered an Nav1.1-originated INaL component in dog heart ventricular cells. This component is physiologically relevant to controlling AP shape and duration, as well as to cell Ca(2+) dynamics.
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Affiliation(s)
- Sudhish Mishra
- Department of Internal Medicine, Henry Ford Hospital, Detroit, MI, USA
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29
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Li Q, Hu T, Chen L, Sun J, Xie J, Li R, Xu B. Selection of reference genes for normalization of quantitative polymerase chain reaction data in mouse models of heart failure. Mol Med Rep 2014; 11:393-9. [PMID: 25338732 DOI: 10.3892/mmr.2014.2750] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Accepted: 07/14/2014] [Indexed: 11/06/2022] Open
Abstract
The accurate measurement of mRNA expression levels is crucially dependent on the use of relevant reference genes for the normalization of data. Currently, heart failure is a serious and widespread disease, and multiple mouse models are utilized for the study of this complex disease. Although mouse models are commonly used to study cardiovascular disease, various studies have not employed the appropriate selection strategies. The present study investigated the expression stability of eight candidate reference genes (GAPDH, ACTB, B2M, CycA, TBP, PBGD, HTRP 1 and 18S) in two mouse models of heart failure, including the transverse aortic arch constriction (TAC) model and the myocardial infarction (MI) model, using GeNorm software. The expression of BNP was normalized using different reference gene strategies, and it was demonstrated that its induction following heart failure was most profound with the optimal reference gene combination. The most stable genes were identified as follows: TBP and CycA in the MI model, and PBGD and GAPDH in the TAC model. The present study provides important information for reference gene selection in mouse models of heart failure, and will aid further investigations of the transcriptome in cardiovascular research.
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Affiliation(s)
- Qiaoling Li
- Department of Cardiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, P.R. China
| | - Tingting Hu
- Department of Cardiology, Huai'an First People's Hospital, Huai'an, Jiangsu 223300, P.R. China
| | - Liang Chen
- Department of Cardiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, P.R. China
| | - Jiayin Sun
- Department of Cardiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, P.R. China
| | - Jun Xie
- Department of Cardiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, P.R. China
| | - Rang Li
- Department of Cardiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, P.R. China
| | - Biao Xu
- Department of Cardiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, P.R. China
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Effect of simvastatin on expression of IL17, HMGB1 and TLR4 in LN kidney tissues of rats. ASIAN PAC J TROP MED 2014; 7:792-5. [DOI: 10.1016/s1995-7645(14)60138-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 05/15/2014] [Accepted: 07/15/2014] [Indexed: 11/18/2022] Open
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31
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Wang J, Wang Y, Wang H, Hao X, Wu Y, Guo J. Selection of Reference Genes for Gene Expression Studies in Porcine Whole Blood and Peripheral Blood Mononuclear Cells under Polyinosinic:Polycytidylic Acid Stimulation. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2014; 27:471-8. [PMID: 25049976 PMCID: PMC4093518 DOI: 10.5713/ajas.2013.13471] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 12/16/2013] [Accepted: 11/20/2013] [Indexed: 11/27/2022]
Abstract
Investigating gene expression of immune cells of whole blood or peripheral blood mononuclear cells (PBMC) under polyinosinic:polycytidylic acid (poly I:C) stimulation is valuable for understanding the immune response of organism to RNA viruses. Quantitative real-time PCR (qRT-PCR) is a standard method for quantification of gene expression studies. However, the reliability of qRT-PCR data critically depends on proper selection of reference genes. In the study, using two different analysis programs, geNorm and NormFinder, we systematically evaluated the gene expression stability of six candidate reference genes (GAPDH, ACTB, B2M, RPL4, TBP, and PPIA) in samples of whole blood and PBMC with or without poly I:C stimulation. Generally, the six candidate genes performed a similar trend of expression stability in the samples of whole blood and PBMC, but more stably expressed in whole blood than in PBMC. geNorm ranked B2M and PPIA as the best combination for gene expression normalization, while according to NormFinder, TBP was ranked as the most stable reference gene, followed by B2M and PPIA. Comprehensively considering the results from the two programs, we recommended using the geometric mean of the three genes, TBP, PPIA and B2M, to normalize the gene expression of whole blood and PBMC with poly I:C stimulation. Our study is the first detailed survey of the gene expression stability in whole blood and PBMC with or without poly I:C stimulation and should be helpful for investigating the molecular mechanism involved in porcine whole blood and PBMC in response to poly I:C stimulation.
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Affiliation(s)
- Jiying Wang
- Qingdao Institute of Animal Science and Veterinary Medicine, Qingdao 266100, China
| | - Yanping Wang
- Qingdao Institute of Animal Science and Veterinary Medicine, Qingdao 266100, China
| | - Huaizhong Wang
- Qingdao Institute of Animal Science and Veterinary Medicine, Qingdao 266100, China
| | - Xiaojing Hao
- Qingdao Institute of Animal Science and Veterinary Medicine, Qingdao 266100, China
| | - Ying Wu
- Qingdao Institute of Animal Science and Veterinary Medicine, Qingdao 266100, China
| | - Jianfeng Guo
- Qingdao Institute of Animal Science and Veterinary Medicine, Qingdao 266100, China
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32
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Optimisation of reference genes for gene-expression analysis in a rabbit model of left ventricular diastolic dysfunction. PLoS One 2014; 9:e89331. [PMID: 24558494 PMCID: PMC3928441 DOI: 10.1371/journal.pone.0089331] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Accepted: 01/20/2014] [Indexed: 01/10/2023] Open
Abstract
Left ventricular diastolic dysfunction (LVDD) is characterized by the disturbance of ventricle’s performance due to its abnormal relaxation or to its increased stiffness during the diastolic phase. The molecular mechanisms underlying LVDD remain unknown. We aimed to identify normalization genes for accurate gene-expression analysis of LVDD using quantitative real-time PCR (RT-PCR) in a new rabbit model of LVDD. Eighteen rabbits were fed with a normal diet (n = 7) or a 0.5% cholesterol-enriched diet supplemented with vitamin D2 (n = 11) for an average of 14.5 weeks. We validated the presence of LVDD in this model using echocardiography for diastolic function assessment. RT-PCR was performed using cDNA derived from left ventricle samples to measure the stability of 10 genes as candidate reference genes (Gapdh, Hprt1, Ppia, Sdha, Rpl5, Actb, Eef1e1, Ywhaz, Pgk1, and G6pd). Using geNorm analysis, we report that Sdha, Gapdh and Hprt1 genes had the highest stability (M <0.2). By contrast, Hprt1 and Rpl5 genes were found to represent the best combination for normalization when using the Normfinder algorithm (stability value of 0.042). Comparison of both normalization strategies highlighted an increase of natriuretic peptides (Bnp and Anp), monocytes chemotactic protein-1 (Mcp-1) and NADPH oxidase subunit (Nox-2) mRNA expressions in ventricle samples of the hypercholesterolemic rabbits compared to controls (P<0.05). This increase correlates with LVDD echocardiographic parameters and most importantly it molecularly validates the presence of the disease in our model. This is the first study emphasizing the selection of stable reference genes for RT-PCR normalization in a rabbit model of LVDD.
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Del Ry S, Cabiati M, Martino A, Cavallini C, Caselli C, Aquaro G, Battolla B, Prescimone T, Giannessi D, Mattii L, Lionetti V. High concentration of C-type natriuretic peptide promotes VEGF-dependent vasculogenesis in the remodeled region of infarcted swine heart with preserved left ventricular ejection fraction. Int J Cardiol 2013; 168:2426-34. [DOI: 10.1016/j.ijcard.2013.03.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2012] [Revised: 01/23/2013] [Accepted: 03/05/2013] [Indexed: 11/28/2022]
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Identification of reference genes for qRT-PCR analysis in Yesso scallop Patinopecten yessoensis. PLoS One 2013; 8:e75609. [PMID: 24069432 PMCID: PMC3777977 DOI: 10.1371/journal.pone.0075609] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Accepted: 08/15/2013] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Bivalves comprise around 30,000 extant species and have received much attention for their importance in ecosystems, aquaculture and evolutionary studies. Despite the increasing application of real-time quantitative reverse transcription PCR (qRT-PCR) in gene expression studies on bivalve species, little research has been conducted on reference gene selection which is critical for reliable and accurate qRT-PCR analysis. For scallops, systematic evaluation of reference genes that can be used among tissues or embryo/larva stages is lacking, and β-actin (ACT) is most frequently used as qRT-PCR reference gene without validation. RESULTS In this study, 12 commonly used candidate reference genes were selected from the transcriptome data of Yesso scallop (Patinopectenyessoensis) for suitable qRT-PCR reference genes identification. The expression of these genes in 36 tissue samples and 15 embryo/larva samples under normal physiological conditions was examined by qRT-PCR, and their expression stabilities were evaluated using three statistic algorithms, geNorm, NormFinder, and comparative ∆Ct method. Similar results were obtained by the three approaches for the most and the least stably expressed genes. Final comprehensive ranking for the 12 genes combing the results from the three programs showed that, for different tissues, DEAD-box RNA helicase (HELI), ubiquitin (UBQ), and 60S ribosomal protein L16 (RPL16) were the optimal reference genes combination, while for different embryo/larva stages, gene set containing Cytochrome B (CB), Cytochrome C (CC), Histone H3.3 (His3.3), and Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) were recommended for qRT-PCR normalization. ACT was among the least stable genes for both adult tissues and embryos/larvae. CONCLUSIONS This work constitutes the first systematic analysis on reference genes selection for qRT-PCR normalization in scallop under normal conditions. The suitable reference genes we recommended will be useful for the identification of genes related to biological processes in Yesso scallop, and also in the reference gene selection for other scallop or bivalve species.
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Zhou Z, de Wijs-Meijler D, Lankhuizen I, Jankowski J, Jankowski V, Jan Danser AH, Duncker DJ, Merkus D. Blunted coronary vasodilator response to uridine adenosine tetraphosphate in post-infarct remodeled myocardium is due to reduced P1 receptor activation. Pharmacol Res 2013; 77:22-9. [PMID: 23994209 DOI: 10.1016/j.phrs.2013.08.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Revised: 08/13/2013] [Accepted: 08/19/2013] [Indexed: 11/26/2022]
Abstract
We previously demonstrated that uridine adenosine tetraphosphate (Up4A) exerts a potent vasodilator effect in the healthy porcine coronary vasculature. Since the coronary microvascular effects of Up4A after myocardial infarction (MI) are unknown, the present study investigated the response to Up4A in coronary microvessels from post-MI remodeled porcine myocardium, and the involvement of purinergic receptor subtypes. Coronary small arteries (diameter ∼150 μm) were dissected from the apex of Sham-operated swine and swine in which MI had been produced 5 weeks earlier by transient (2h) occlusion of the left circumflex coronary artery, and mounted on Mulvany wire myographs. Up4A (10(-9)-10(-5)M) produced coronary vasodilation that was reduced in MI as compared to Sham-operated swine. Up4A-induced vasodilation was reduced by P1 blockade with 8-phenyltheophylline in Sham-operated swine and to a lesser extent in MI, while the attenuation by the A2A receptor blocker SCH58261 was similar in Sham-operated and MI swine. Up4A-induced vasodilation remained unaffected by non-selective P2 receptor antagonist PPADS, but was attenuated by selective P2X1 and P2Y1 receptor antagonists MRS2159 and MRS2179, albeit to a similar extent in Sham-operated and MI swine. These responses were paralleled by similar mRNA expression levels of A2A, P2X1 and P2Y1 receptors in MI compared to slaughterhouse control swine. Finally, attenuation of Up4A-induced coronary vasodilation by nitric oxide synthase inhibition was not attenuated in MI as compared to Sham-operated swine. In conclusion, blunted coronary vasodilation in response to Up4A in MI swine is most likely due to reduced activation of P1, rather than P2, receptors and does not involve a loss of NO bioavailability.
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Affiliation(s)
- Zhichao Zhou
- Division of Experimental Cardiology, Department of Cardiology, Thoraxcenter, Cardiovascular Research School COEUR, The Netherlands
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Impact of normalization strategy on cardiac expression of pro-inflammatory cytokines: Evaluation of reference genes in different human myocardial regions after Left Ventricular Assist Device support. Cytokine 2013; 63:113-22. [DOI: 10.1016/j.cyto.2013.04.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Revised: 04/12/2013] [Accepted: 04/14/2013] [Indexed: 11/24/2022]
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Adenosine receptor expression in an experimental animal model of myocardial infarction with preserved left ventricular ejection fraction. Heart Vessels 2013; 29:513-9. [DOI: 10.1007/s00380-013-0380-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 06/07/2013] [Indexed: 12/18/2022]
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Transcriptomic profiling of the four adenosine receptors in human leukocytes of heart failure patients. BIOMED RESEARCH INTERNATIONAL 2013; 2013:569438. [PMID: 23936818 PMCID: PMC3722840 DOI: 10.1155/2013/569438] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Revised: 05/17/2013] [Accepted: 05/22/2013] [Indexed: 12/02/2022]
Abstract
In this study the transcriptomic profiling of adenosine receptors (ARs) in human leukocytes of heart failure (HF) patients as a function of clinical severity, assessing the possible changes with respect to healthy subjects (C), was evaluated. Total RNA was extracted from leukocytes of C (n = 8) and of HF patients (NYHA I-II n = 9; NYHA III-IV n = 14) with a PAXgene Blood RNA Kit. An increase as a function of clinical severity was observed in each AR (A1R: C = 0.02 ± 0.009, NYHA I-II = 0.21 ± 0.09, NYHA III-IV = 3.6 ± 1.3, P = 0.03 C versus NYHA III-IV, P = 0.02 NYHA I-II versus NYHA III-IV; A2aR: C = 0.2 ± 0.05, NYHA I-II = 0.19 ± 0.04, NYHA III-IV = 1.32 ± 0.33, P = 0.005 C versus NYHA III-IV, P = 0.003 NYHA I-II versus NYHA III-IV; A2bR: C = 1.78 ± 0.36, NYHA I-II = 1.35 ± 0.29, NYHA III-IV = 4.07 ± 1.21, P = 0.03: NYHA I-II versus NYHA III-IV; A3R: C = 0.76 ± 0.21, NYHA I-II = 0.94 ± 0.19, NYHA III-IV = 3.14 ± 0.77, P = 0.01 C versus NYHA III-IV and NYHA I-II versus NYHA III-IV, resp.). The mRNA expression of the ectonucleoside triphosphate diphosphohydrolase (CD39) and the ecto-5′-nucleotidase (CD73) were also evaluated. They resulted up-regulated. These findings show that components of adenosine metabolism and signalling are altered to promote adenosine production and signalling in HF patients. Thus, HF may benefit from adenosine-based drug therapy after confirmation by clinical trials.
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Merkus D, Visser M, Houweling B, Zhou Z, Nelson J, Duncker DJ. Phosphodiesterase 5 inhibition-induced coronary vasodilation is reduced after myocardial infarction. Am J Physiol Heart Circ Physiol 2013; 304:H1370-81. [DOI: 10.1152/ajpheart.00410.2012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The balance between the production and removal of cGMP in coronary vascular smooth muscle is of critical importance in determining coronary vasomotor tone and thus in the regulation of coronary blood flow. cGMP production by soluble guanylyl cyclase is activated by nitric oxide (NO), whereas cGMP breakdown occurs through phosphodiesterase 5 (PDE5). We hypothesized that myocardial infarction (MI) alters the balance between the production and removal of cGMP in the coronary vasculature and thereby alters the control of coronary vasomotor tone. Chronically instrumented swine with and without a 2-wk-old MI were exercised on a treadmill in the absence and presence of the PDE5 inhibitor EMD-360527 (300 μg·kg−1·min−1 iv). Inhibition of PDE5 produced coronary resistance vessel dilation, which was more pronounced at rest than during exercise in normal swine. PDE5 gene expression was markedly reduced in coronary resistance vessels isolated from the remote myocardium of MI swine, which was accompanied by a similarly marked attenuation of coronary vasodilation by PDE5 inhibition in MI swine. The coronary vasoconstriction produced by inhibition of NO synthesis with Nω-nitro-l-arginine (20 mg/kg iv) was only slightly smaller in swine with MI. Interestingly, inhibition of NO synthesis reduced the vasodilator response to subsequent PDE5 inhibition in normal swine but not in MI swine. Conversely, PDE5 inhibition enhanced the coronary vasoconstriction produced by NO synthesis inhibition in normal swine but not in MI swine, suggesting that downregulation of PDE5 mitigated the loss of NO vasodilator influence. In conclusion, the expression and vasoconstrictor influence of PDE5 are markedly attenuated in coronary resistance vessels in the remote myocardium after MI, which appears to serve as a compensatory mechanism to mitigate the loss of NO vasodilator influence.
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Affiliation(s)
- Daphne Merkus
- Experimental Cardiology, Thoraxcenter, Cardiovascular Research Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Marleen Visser
- Experimental Cardiology, Thoraxcenter, Cardiovascular Research Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Birgit Houweling
- Experimental Cardiology, Thoraxcenter, Cardiovascular Research Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Zhichao Zhou
- Experimental Cardiology, Thoraxcenter, Cardiovascular Research Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Jessica Nelson
- Experimental Cardiology, Thoraxcenter, Cardiovascular Research Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Dirk J. Duncker
- Experimental Cardiology, Thoraxcenter, Cardiovascular Research Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
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Caselli C, Lionetti V, Cabiati M, Prescimone T, Aquaro GD, Ottaviano V, Bernini F, Mattii L, Del Ry S, Giannessi D. Regional evidence of modulation of cardiac adiponectin level in dilated cardiomyopathy: pilot study in a porcine animal model. Cardiovasc Diabetol 2012; 11:143. [PMID: 23164042 PMCID: PMC3537584 DOI: 10.1186/1475-2840-11-143] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Accepted: 11/07/2012] [Indexed: 12/30/2022] Open
Abstract
Background The role of systemic and myocardial adiponectin (ADN) in dilated cardiomyopathy is still debated. We tested the regulation of both systemic and myocardial ADN and the relationship with AMP-activated protein kinase (AMPK) activity in a swine model of non-ischemic dilated cardiomyopathy. Methods and results Cardiac tissue was collected from seven instrumented adult male minipigs by pacing the left ventricular (LV) free wall (180 beats/min, 3 weeks), both from pacing (PS) and opposite sites (OS), and from five controls. Circulating ADN levels were inversely related to global and regional cardiac function. Myocardial ADN in PS was down-regulated compared to control (p < 0.05), yet ADN receptor 1 was significantly up-regulated (p < 0.05). No modifications of AMPK were observed in either region of the failing heart. Similarly, myocardial mRNA levels of PPARγ, PPARα, TNFα, iNOS were unchanged compared to controls. Conclusions Paradoxically, circulating ADN did not show any cardioprotective effect, confirming its role as negative prognostic biomarker of heart failure. Myocardial ADN was reduced in PS compared to control in an AMPK-independent fashion, suggesting the occurrence of novel mechanisms by which reduced cardiac ADN levels may regionally mediate the decline of cardiac function.
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Affiliation(s)
- Chiara Caselli
- Consiglio Nazionale delle Ricerche (CNR), Institute of Clinical Physiology, Laboratory of Cardiovascular Biochemistry, Pisa, Italy
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Del Ry S, Cabiati M, Lionetti V, Aquaro GD, Martino A, Mattii L, Morales MA. Pacing-induced regional differences in adenosine receptors mRNA expression in a swine model of dilated cardiomyopathy. PLoS One 2012; 7:e47011. [PMID: 23071699 PMCID: PMC3470544 DOI: 10.1371/journal.pone.0047011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Accepted: 09/11/2012] [Indexed: 01/09/2023] Open
Abstract
The adenosinergic system is essential in the mediation of intrinsic protection and myocardial resistance to insult; it may be considered a cardioprotective molecule and adenosine receptors (ARs) represent potential therapeutic targets in the setting of heart failure (HF). The aim of the study was to test whether differences exist between mRNA expression of ARs in the anterior left ventricle (LV) wall (pacing site: PS) compared to the infero septal wall (opposite region: OS) in an experimental model of dilated cardiomyopathy. Cardiac tissue was collected from LV PS and OS of adult male minipigs with pacing-induced HF (n = 10) and from a control group (C, n = 4). ARs and TNF–α mRNA expression was measured by Real Time-PCR and the results were normalized with the three most stably expressed genes (GAPDH, HPRT1, TBP). Immunohistochemistry analysis was also performed. After 3 weeks of pacing higher levels of expression for each analyzed AR were observed in PS except for A1R (A1R: C = 0.6±0.2, PS = 0.1±0.04, OS = 0.04±0.01, p<0.0001 C vs. PS and OS respectively; A2AR: C = 1.04±0.59, PS = 2.62±0.79, OS = 2.99±0.79; A2BR: C = 1.2±0.1, PS = 5.59±2.3, OS = 1.59±0.46; A3R: C = 0.76±0.18, PS = 8.40±3.38, OS = 4.40±0.83). Significant contractile impairment and myocardial hypoperfusion were observed at PS after three weeks of pacing as compared to OS. TNF-α mRNA expression resulted similar in PS (6.3±2.4) and in OS (5.9±2.7) although higher than in control group (3.4±1.5). ARs expression was mainly detected in cardiomyocytes. This study provided new information on ARs local changes in the setting of LV dysfunction and on the role of these receptors in relation to pacing-induced abnormalities of myocardial perfusion and contraction. These results suggest a possible therapeutic role of adenosine in patients with HF and dyssynchronous LV contraction.
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MESH Headings
- Animals
- Cardiac Pacing, Artificial
- Cardiomyopathy, Dilated/genetics
- Cardiomyopathy, Dilated/physiopathology
- Cardiomyopathy, Dilated/therapy
- Disease Models, Animal
- Gene Expression Regulation
- Heart Failure/genetics
- Heart Failure/physiopathology
- Heart Rate/genetics
- Heart Ventricles/physiopathology
- Magnetic Resonance Imaging
- Male
- RNA, Messenger
- Receptors, Purinergic P1/genetics
- Receptors, Purinergic P1/metabolism
- Swine
- Swine, Miniature
- Tumor Necrosis Factor-alpha/genetics
- Ventricular Dysfunction, Left/physiopathology
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Uridine adenosine tetraphosphate is a novel vasodilator in the coronary microcirculation which acts through purinergic P1 but not P2 receptors. Pharmacol Res 2012; 67:10-7. [PMID: 23063485 DOI: 10.1016/j.phrs.2012.09.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Revised: 09/26/2012] [Accepted: 09/27/2012] [Indexed: 11/23/2022]
Abstract
Uridine adenosine tetraphosphate (Up4A) has been identified as an endothelium-derived contracting factor, which acts through purinergic P2X and P2Y receptors. Since the coronary vascular actions of Up4A are unknown, we investigated the vasoactive profile of Up4A in coronary microvessels, and studied the involvement of purinergic receptor subtypes. Studies were performed in isolated porcine coronary small arteries (diameter∼250 μm), with and without endothelial denudation, mounted on a Mulvany wire myograph. Purinergic receptor expression was assessed by real-time PCR. Up4A (10(-9)-10(-5) M) failed to induce contraction at basal tone, but produced concentration-dependent vasorelaxation in precontracted microvessels. Up4A was slightly less potent than adenosine, ATP, and ADP in producing vasorelaxation, but significantly more potent than UTP and UDP. mRNA expression of P2X(4), P2Y(1), P2Y(2), P2Y(4), P2Y(6) and A(2A), but not P2X(1), receptors was observed. Up4A-induced vasodilation was unaffected by non-selective P2 receptor antagonist PPADS, P2X(1) antagonist MRS2159, P2Y(1) antagonist MRS2179 and P2Y(6) antagonist MRS2578, but was markedly attenuated by non-selective P1 receptor antagonist 8PT and A(2A) antagonist SCH58261. Up4A-induced vasodilation was not affected by ectonucleotidase inhibitor ARL67156, suggesting that A(2A) stimulation was not the result of Up4A breakdown to adenosine. Up4A-induced vasodilation was blunted in denuded vessels; additional A(2A) receptor blockade further attenuated Up4A-induced vasodilation, suggesting that A(2A) receptor-mediated vasodilation is only partly endothelium-dependent. In conclusion, Up4A exerts a vasodilator rather than a vasoconstrictor influence in coronary microvessels, which is mediated via A(2A) receptors and is partly endothelium-dependent.
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Cabiati M, Sabatino L, Caruso R, Caselli C, Prescimone T, Giannessi D, Del Ry S. Gene expression of C-type natriuretic peptide and of its specific receptor NPR-B in human leukocytes of healthy and heart failure subjects. Peptides 2012; 37:240-6. [PMID: 22884919 DOI: 10.1016/j.peptides.2012.07.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Revised: 07/27/2012] [Accepted: 07/27/2012] [Indexed: 11/25/2022]
Abstract
C-type natriuretic peptide (CNP), a member of the family of natriuretic peptides, is synthesized and secreted from monocytes and macrophages that resulted to be a source of CNP at inflammatory sites. This suggests that special attention should be focused on the possible role of CNP in the immune system, in addition to its effects on the cardiovascular system. The aim of this study was to evaluate the possibility of measuring the mRNA expression of CNP and NPR-B, its specific receptor, in human whole blood samples of healthy (N; n=7) and heart failure (HF; n=7) subjects by Real-Time PCR (RT-PCR). Total RNA was extracted from leukocytes with QIAamp RNA Blood Kit and/or with PAXgene Blood RNA Kit. RT-PCR was performed and optimized for each primer. The experimental results were normalized with the three most stably expressed genes. CNP and NPR-B expression trend was similar in both fresh and frozen human whole blood. Significant higher levels of CNP and NPR-B mRNA expression were found in HF patients with respect to controls (CNP: N=1.23±0.33 vs. HF=6.54±2.09 p=0.027; NPR-B: N=0.85±0.23 vs. HF=5.31±1.98 p=0.04). A significant correlation between CNP and NPR-B (r=0.86, p<0.0001) was observed. Further studies are needed to clarify the pathophysiological properties of this peptide but the possibility to measure CNP and NPR-B mRNA expression in human leukocytes with a fast and easy procedure is a useful starting point for future investigation devoted to better understand the biomolecular processes associated to different diseases.
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Affiliation(s)
- M Cabiati
- CNR Institute of Clinical Physiology, Laboratory of Cardiovascular Biochemistry, Pisa, Italy
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Bruce KD, Sihota KK, Byrne CD, Cagampang FR. The housekeeping gene YWHAZ remains stable in a model of developmentally primed non-alcoholic fatty liver disease. Liver Int 2012; 32:1315-21. [PMID: 22583519 DOI: 10.1111/j.1478-3231.2012.02813.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Accepted: 04/03/2012] [Indexed: 12/12/2022]
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) is the most common form of chronic liver disease in Western society. Comparative gene expression studies are beginning to elucidate the molecular mechanisms underlying NAFLD progression. We have previously shown that high fat diets during early life can prime non-alcoholic steatohepatitis (NASH) in adulthood, through lipogenesis gene elevation. To generate accurate results in such studies, appropriate housekeeping genes (HKG) which are unaffected by disease processes, are used for data normalisation. However, there is little existing data to show the effects of NAFLD on HKG expression. AIMS To identify the HKG in a mouse model of developmentally primed NAFLD and NASH, which maintains expression stability. METHODS We determined the expression stability of six candidates HKG (GAPDH, YWHAZ, B2M, EIF4A2, ACTB and CYC1) in a mouse model of developmentally primed NAFLD in both the day and night, using geNORM qBasePlus software. RESULTS HKG expression differed across dietary groups and time of day. In the majority of treatment groups and time points the most stable gene was YWHAZ. Following high fat diet interventions CYC1 became notably unstable. Overall the effect of NAFLD and NASH on HKG expression was to maintain stability of YWHAZ, but destabilise CYC1 and EIF4A2. CONCLUSIONS Our data clearly shows that HKG expression is affected by NAFLD severity and time of day sampling, highlighting the importance of suitable HKG gene selection. For comparative gene expression studies investigating NAFLD we would recommend use of YWHAZ as a robust, stably expressed HKG.
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Affiliation(s)
- Kimberley D Bruce
- Human Development and Health, Institute of Developmental Sciences, University of Southampton Faculty of Medicine, Southampton, UK.
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Yosten GLC, Redlinger LJ, Samson WK. Evidence for an interaction of neuronostatin with the orphan G protein-coupled receptor, GPR107. Am J Physiol Regul Integr Comp Physiol 2012; 303:R941-9. [PMID: 22933024 DOI: 10.1152/ajpregu.00336.2012] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Neuronostatin, derived from the somatostatin preprohormone, is a recently described peptide that is produced by several tissues involved in cardiovascular regulation and metabolism, including the hypothalamus. Injection of neuronostatin into the lateral cerebroventricle led to a dose-related increase in mean arterial pressure (MAP) in rats. Any attempt to inhibit the production of neuronostatin would alter somatostatin production as well, making determination of the physiological relevance of the peptide's pharmacologic effects by compromise of production approaches impossible. Therefore, we employed an alternative approach to identify and compromise the production of the neuronostatin receptor. Because neuronostatin was shown to signal via a PKA-dependent mechanism, we hypothesized that the neuronostatin receptor was a G protein-coupled receptor (GPCR), in particular, one of the orphan GPCRs for which the ligand is unknown. Therefore, we screened neuronostatin-responsive tissues, including hypothalamus, heart, pancreatic α-cells, and the gastric tumor cell line KATOIII, for expression of orphan GPCRs. Four orphan GPCRs were expressed by all cell types, including GPR56 and GPR107. Knockdown of GPR107, but not GPR56 or GPR146, led to a loss of responsiveness to neuronostatin by KATOIII cells. Rats injected with siRNA directed against GPR107 (2 μg/day for 2 days) into the lateral cerebroventricle did not exhibit an increase in MAP in response to neuronostatin treatment. Rats with compromised GPR107 expression also displayed blunted reactivity in a baroreflex sensitivity test, indicating that GPR107 and neuronostatin may be important regulators of cardiovascular function. Thus, GPR107 is a promising candidate receptor for neuronostatin, and neuronostatin, interacting with GPR107, may play an important role in the central control of cardiovascular function.
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Affiliation(s)
- Gina L C Yosten
- Department of Pharmacological and Physiological Science, Saint Louis Univ. School of Medicine, 1402 S. Grand Blvd., St. Louis, MO 63104, USA.
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Cabiati M, Raucci S, Caselli C, Guzzardi MA, D'Amico A, Prescimone T, Giannessi D, Del Ry S. Tissue-specific selection of stable reference genes for real-time PCR normalization in an obese rat model. J Mol Endocrinol 2012; 48:251-60. [PMID: 22493144 DOI: 10.1530/jme-12-0024] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Obesity is a complex pathology with interacting and confounding causes due to the environment, hormonal signaling patterns, and genetic predisposition. At present, the Zucker rat is an eligible genetic model for research on obesity and metabolic syndrome, allowing scrutiny of gene expression profiles. Real-time PCR is the benchmark method for measuring mRNA expressions, but the accuracy and reproducibility of its data greatly depend on appropriate normalization strategies. In the Zucker rat model, no specific reference genes have been identified in myocardium, kidney, and lung, the main organs involved in this syndrome. The aim of this study was to select among ten candidates (Actb, Gapdh, Polr2a, Ywhag, Rpl13a, Sdha, Ppia, Tbp, Hprt1 and Tfrc) a set of reference genes that can be used for the normalization of mRNA expression data obtained by real-time PCR in obese and lean Zucker rats both at fasting and during acute hyperglycemia. The most stable genes in the heart were Sdha, Tbp, and Hprt1; in kidney, Tbp, Actb, and Gapdh were chosen, while Actb, Ywhag, and Sdha were selected as the most stably expressed set for pulmonary tissue. The normalization strategy was used to analyze mRNA expression of tumor necrosis factor α, the main inflammatory mediator in obesity, whose variations were more significant when normalized with the appropriately selected reference genes. The findings obtained in this study underline the importance of having three stably expressed reference gene sets for use in the cardiac, renal, and pulmonary tissues of an experimental model of obese and hyperglycemic Zucker rats.
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Affiliation(s)
- Manuela Cabiati
- Laboratory of Cardiovascular Biochemistry, CNR Institute of Clinical Physiology, Via Giuseppe Moruzzi 1, 56124 Pisa, Italy
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Dong Z, Wu T, Qin W, An C, Wang Z, Zhang M, Zhang Y, Zhang C, An F. Serum amyloid A directly accelerates the progression of atherosclerosis in apolipoprotein E-deficient mice. Mol Med 2011; 17:1357-64. [PMID: 21953420 DOI: 10.2119/molmed.2011.00186] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Accepted: 09/20/2011] [Indexed: 11/06/2022] Open
Abstract
Although serum amyloid A (SAA) is an excellent marker for coronary artery disease, its direct effect on atherogenesis in vivo is obscure. In this study we investigated the direct effect of SAA on promoting the formation of atherosclerosis in apolipoprotein E-deficient (ApoE⁻/⁻) mice. Murine SAA lentivirus was constructed and injected into ApoE⁻/⁻ mice intravenously. Then, experimental mice were fed a chow diet (5% fat and no added cholesterol) for 14 wks. The aortic atherosclerotic lesion area was larger with than without SAA treatment. With increased SAA levels, the plasma levels of interleukin-6 and tumor necrosis factor-α were significantly increased. Macrophage infiltration in atherosclerotic regions was enhanced with SAA treatment. A migration assay revealed prominent dose-dependent chemotaxis of SAA to macrophages. Furthermore, the expression of monocyte chemotactic protein-1 and vascular cell adhesion molecule-1 (VCAM-1) was upregulated significantly with SAA treatment. SAA-induced VCAM-1 production was detected in human aortic endothelial cells in vitro. Thus, an increase in plasma SAA directly accelerates the progression of atherosclerosis in ApoE⁻/⁻ mice. SAA is not only a risk marker for atherosclerosis but also an active participant in atherogenesis.
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Affiliation(s)
- Zhe Dong
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Shandong University Qilu Hospital, Jinan, Shandong, China
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