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Kang X, Zhong C, Du X, Amevor FK, Shah AM, Zhu Q, Tian Y, Shu G, Wang Y, Zhao X. Study on the role of heat shock protein 90 ( HSP90) gene in chicken preadipocytes proliferation and differentiation. Anim Biotechnol 2023; 34:1776-1785. [PMID: 35522178 DOI: 10.1080/10495398.2022.2050252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
In this study, we examined the effects of Heat Shock Protein 90 (HSP90) on adipocyte proliferation and differentiation in chickens. To achieve this, we constructed RNA interference (RNAi) vectors to target HSP90 and transfected the vectors into primary adipocytes. After transfection, oil red O staining was performed to determine the status of triglyceride accumulation in the cells, whereas the CCK-8 cell kit and 5-Ethynyl-2'-Deoxyuridine (EdU) assays were used to determine cell proliferation. Thereafter, the mRNA and protein expression levels of PPARγ, FAS, SREBP-1c, and HSP90 were determined, and the results showed that after the interference of HSP90, the mRNA and protein expression levels of HSP90 in the chicken adipocytes decreased significantly compared to the control and blank groups (p < 0.05). The decreased mRNA and protein expression of PPARγ, FAS, and SREBP-1c was related to adipocyte differentiation (p < 0.05). However, HSP90 interference had no effect on adipocyte proliferation (p > 0.05). Taken together, the results of this study showed that HSP90 influenced the expression of PPARγ and adipose-differentiation-related genes, thereby regulating triglyceride accumulation and adipocyte differentiation in chickens.
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Affiliation(s)
- Xincheng Kang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Chenglin Zhong
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Xiaxia Du
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Felix Kwame Amevor
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Ali Mujtaba Shah
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Qing Zhu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yaofu Tian
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Gang Shu
- Department of Basic Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yan Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Xiaoling Zhao
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
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Prezotto LD, Thorson JF. Effect of Dietary Urea in Gestating Beef Cows: Circulating Metabolites, Morphometrics, and Mammary Secretions. Animals (Basel) 2022; 13:6. [PMID: 36611615 PMCID: PMC9817868 DOI: 10.3390/ani13010006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/09/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Prolific use of supplementation strategies, including the utilization of urea, are practiced in beef cattle production systems. Unfortunately, the influence of urea supplementation on metabolics, adipose tissue mobilization, and mammary secretions is limited in beef cows. Therefore, the objectives of this experiment were to assess the influence of urea supplementation on metabolic profiles, morphometrics, and mammary secretions. Pregnant, multiparous beef cows were fed individually and assigned to treatment (n = 4/treatment) as Control or Urea Supplementation. Blood samples and body weight were collected every 28 d throughout gestation. Backfat thickness was measured via ultrasonography on days 28 and 280 of gestation. Total mammary secretions were sampled for composition. Concentrations of beta-hydroxybutyrate, non-esterified fatty acids, glucose, and plasma urea nitrogen did not differ by treatment. Body weight and backfat thickness changed in response to the progression of gestation, but did not differ between treatments. Finally, concentration of urea nitrogen increased in mammary secretions of cows fed urea, but total content of urea nitrogen in mammary secretions did not differ between treatments. In conclusion, we have demonstrated that the pregnant beef cow undergoes metabolic adaptation during gestation. However, urea supplementation failed to improve any of the morphometric parameters of the dams assessed.
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Affiliation(s)
- Ligia D. Prezotto
- Department of Animal Science, University of Nebraska—Lincoln, 3940 Fair St., Lincoln, NE 68583-0908, USA
| | - Jennifer F. Thorson
- USDA, Agricultural Research Service, U.S. Meat Animal Research Center, Clay Center, NE 68933-0166, USA
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Zulkifli I, Akmal A, Soleimani A, Hossain M, Awad E. Effects of low-protein diets on acute phase proteins and heat shock protein 70 responses, and growth performance in broiler chickens under heat stress condition. Poult Sci 2018; 97:1306-1314. [DOI: 10.3382/ps/pex436] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 12/22/2017] [Indexed: 02/02/2023] Open
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Shabtay A. Adaptive traits of indigenous cattle breeds: The Mediterranean Baladi as a case study. Meat Sci 2015; 109:27-39. [PMID: 26025652 DOI: 10.1016/j.meatsci.2015.05.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 05/15/2015] [Accepted: 05/16/2015] [Indexed: 10/23/2022]
Abstract
Generally taken, breeds of Bos taurus ancestry are considered more productive, in comparison with Bos indicus derived breeds that present enhanced hardiness and disease resistance, low nutritional requirements and higher capability of feed utilization. While breeds of B. taurus have been mostly selected for intensive production systems, indigenous cattle, developed mostly from indicine and African taurines, flourish in extensive habitats. Worldwide demographic and economic processes face animal production with new challenges - the increasing demand for animal food products. Intensification of animal husbandry is thus a desired goal in stricken parts of the world. An introduction of productive traits to indigenous breeds might serve to generate improved biological and economic efficiencies. For this to succeed, the genetic merit of traits like efficiency of feed utilization and product quality should be revealed, encouraging the conservation initiatives of indigenous cattle populations, many of which are already extinct and endangered. Moreover, to overcome potential genetic homogeneity, controlled breeding practices should be undertaken. The Baladi cattle are a native local breed found throughout the Mediterranean basin. Purebred Baladi animals are rapidly vanishing, as more European breeds are being introduced or used for backcrosses leading to improved production. The superiority of Baladi over large-framed cattle, in feedlot and on Mediterranean pasture, with respect to adaptability and efficiency, is highlighted in the current review.
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Affiliation(s)
- Ariel Shabtay
- Agricultural Research Organization, Beef Cattle Section, Newe Ya'ar P.O. Box 1021, Israel.
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