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Chang PK, Chang TD, Katoh K. Deciphering the origin of Aspergillus flavus NRRL21882, the active biocontrol agent of Afla-Guard ®. Lett Appl Microbiol 2021; 72:509-516. [PMID: 33251654 DOI: 10.1111/lam.13433] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 11/19/2020] [Accepted: 11/19/2020] [Indexed: 11/28/2022]
Abstract
Single nucleotide polymorphisms (SNPs) of genome sequences of eight Aspergillus flavus and seven Aspergillus oryzae strains were extracted with Mauve, a multiple-genome alignment programme. A phylogenetic analysis with sequences comprised of concatenated total SNPs by the unweighted pair group method with arithmetic mean (UPGMA) of MAFFT adequately separated them into three groups, A. flavus S-morphotype, A. flavus L-morphotype and A. oryzae. Divergence time inferred for A. flavus NRRL21882, the active agent of the biocontrol product Afla-Guard® , and S-morphotype was about 5·1 mya. Another biocontrol strain, A. flavus AF36, diverged from aflatoxigenic L-morphotype about 2·6-3·0 mya. Despite the close relatedness of A. oryzae to A. flavus, A. oryzae strains likely evolved from aflatoxigenic Aspergillus aflatoxiformans (=A. parvisclerotigenus). A survey of A. flavus populations implies that prior Afla-Guard® applications are associated with prevalence of NRRL21882-type isolates in Mississippi fields. In addition, a few NRRL21882 relatives were identified. A. flavus Og0222, a biocontrol ingredient of Aflasafe™, was verified as a NRRL21882-type strain, having identical sequence breakpoints that led to deletion of aflatoxin and cyclopiazonic acid gene clusters. A similar UPGMA analysis suggests that the occurrence of NRRL21882-type strains is a more recent event.
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Affiliation(s)
- P-K Chang
- Southern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, New Orleans, LA, USA
| | - T D Chang
- 400 Poydras Street, New Orleans, LA, USA
| | - K Katoh
- Immunology Frontier Research Center, Osaka University, Suita, Japan
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Buranakarl C, Thammacharoen S, Semsirmboon S, Sutayatram S, Chanpongsang S, Chaiyabutr N, Katoh K. Effects of replacement of para-grass with oil palm compounds on body weight, food intake, nutrient digestibility, rumen functions and blood parameters in goats. Asian-Australas J Anim Sci 2019; 33:921-929. [PMID: 31480144 PMCID: PMC7206385 DOI: 10.5713/ajas.19.0069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 08/11/2019] [Indexed: 11/27/2022]
Abstract
Objective The aim of the present study was to investigate the beneficial effects of dietary supplementation with oil palm frond (leaf) (OPF) with and without oil palm meal (OPM) on nutrient intake and digestibility, ruminal fermentation and growth performance in goats. Methods Six female crossbred goats were fed for 28 days of 3 diet treatments; 100% para-grass (T1); 50% para-grass + 50% OPF (T2), and 30% para-grass + 50% OPF + 20% OPM (T3). Body weight, rectal temperature, respiratory rate, and urine volume, food intake, dry matter intake and water intake were measured daily. Nutrient digestibility was determined from five consecutive days of last week in each diet. Ruminal fluid, urine and blood were collected at the end for determination of rumen protozoa and volatile fatty acid contents, urinary allantoin excretion, blood cell count and chemistry profiles. Results Goats fed T2 and T3 showed higher dry matter and nutrients intakes while protein digestibility was suppressed compared with those for T1. Crude fat digestibility declined in T2 but maintained after adding the OPM (T3). High fat intake by giving OPF and OPM corresponded to a higher ruminal acetate/propionate ratio (C2/C3) and serum cholesterol level. An increased urinary allantoin/creatinine ratio was found in T2 and T3 compared with T1, implying an increased number of ruminal microbes. Conclusion Increased dry matter intake in T2 and T3 suggested that oil palm by-products are partly useful as a replacement for para-grass in goats. Replacement with the by-products increased plasma cholesterol level, which suggested that these products are a useful energy source. Changes in rumen parameters suggested an increased microbial number and activity suitable for acetate production. However, the limited digestibility of protein implies that addition of high protein feeds may be recommended to increase body weight gain of goats.
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Affiliation(s)
- C Buranakarl
- Department of Physiology, Faculty of Veterinary Science, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand
| | - S Thammacharoen
- Department of Physiology, Faculty of Veterinary Science, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand
| | - S Semsirmboon
- Department of Physiology, Faculty of Veterinary Science, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand
| | - S Sutayatram
- Department of Physiology, Faculty of Veterinary Science, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand
| | - S Chanpongsang
- Department of Animal Husbandry, Faculty of Veterinary Science, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand
| | - N Chaiyabutr
- Department of Physiology, Faculty of Veterinary Science, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand
| | - K Katoh
- Division of Functional and Developmental Science of Livestock Production, Graduate School of Agriculture, Tohoku University, Sendai 981-0845, Japan
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Haga S, Miyaji M, Nakano M, Ishizaki H, Matsuyama H, Katoh K, Roh SG. Changes in the expression of α-tocopherol-related genes in liver and mammary gland biopsy specimens of peripartum dairy cows. J Dairy Sci 2018; 101:5277-5293. [PMID: 29605316 DOI: 10.3168/jds.2017-13630] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 02/17/2018] [Indexed: 11/19/2022]
Abstract
Blood α-tocopherol (α-Toc) concentrations decline gradually throughout the prepartum period, reaching the nadir after calving in dairy cows. The 6 α-Toc-related molecules [α-Toc transfer protein (TTPA); afamin; scavenger receptor class B, Type I; ATP-binding cassette transporter A1; tocopherol-associated protein (SEC14L2); and cytochrome P450 family 4, subfamily F, polypeptide 2 (CYP4F2)] are expressed in liver and other peripheral tissues. These molecules could regulate α-Toc transport, blood concentrations, and metabolism of α-Toc. Therefore, the aim of this study was to evaluate the changes in the expression of α-Toc-related genes in liver and mammary gland tissues of dairy cows around calving, which have remained elusive until now. In experiment (Exp.) 1, 28 multiparous Holstein cows were used (from -5 to 6 wk relative to parturition) to monitor the changes in dietary α-Toc intake, blood concentrations of α-Toc, and lipoproteins; in Exp. 2, 7 peripartum Holstein cows were used (from -4 to 4 wk relative to parturition) for liver tissue biopsy; and in Exp. 3, 10 peripartum Holstein cows were used (from -8 to 6 wk relative to parturition) to carry out the mammary gland tissue biopsy and milk sampling. In Exp. 1, the serum α-Toc concentrations declined gradually with decreasing amount of α-Toc intake and plasma high-density lipoprotein concentrations toward calving time. However, in the early lactation period after calving, serum α-Toc concentrations remained at a lower concentration despite the recovery of α-Toc intake and plasma high-density lipoprotein concentrations. In Exp. 2, just after calving, the TTPA, SEC14L2, afamin, and albumin mRNA expression levels in the liver were temporarily downregulated, and the hepatic mRNA levels of endoplasmic reticulum stress-induced unfolded protein response markers and acute-phase response marker increased at calving. In Exp. 3, the concentrations of α-Toc in colostrum were greater than those in precolostrum (samples were collected at wk -1 relative to parturition) and mature milk. The expression of TTPA, SEC14L2, and CYP4F2 mRNA in bovine mammary gland tissue was detected. However, TTPA and SEC14L2 mRNA expressions showed the opposite trends: the expression levels of TTPA mRNA peaked whereas SEC14L2 mRNA reached a nadir at calving. These results indicate that the expression of α-Toc-related genes involved in specific α-Toc transfer and metabolism in the liver and mammary gland are altered during calving. Moreover, these changes might be associated with the maintenance of lower serum α-Toc concentrations after calving.
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Affiliation(s)
- S Haga
- Grassland Management Research Division, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 768, Senbonmatsu, Nasushiobara, Tochigi, 329-2793, Japan.
| | - M Miyaji
- Animal Feeding and Management Research Division, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 768, Senbonmatsu, Nasushiobara, Tochigi, 329-2793, Japan
| | - M Nakano
- Grassland Management Research Division, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 768, Senbonmatsu, Nasushiobara, Tochigi, 329-2793, Japan
| | - H Ishizaki
- Grassland Management Research Division, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 768, Senbonmatsu, Nasushiobara, Tochigi, 329-2793, Japan
| | - H Matsuyama
- Animal Feeding and Management Research Division, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 768, Senbonmatsu, Nasushiobara, Tochigi, 329-2793, Japan
| | - K Katoh
- Lab of Animal Physiology, Graduate School of Agriculture Science, Tohoku University, 468-1, Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 980-0845, Japan
| | - S G Roh
- Lab of Animal Physiology, Graduate School of Agriculture Science, Tohoku University, 468-1, Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 980-0845, Japan
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Katoh K, Aiba K, Fukushi D, Suzuki Y, Yamada K, Wakamatsu N. Two female patients with Xq27.3q28 deletion and skewed X-inactivation display similar phenotypes as hunter syndrome. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ooi K, Jokaji R, Ide K, Kobayashi Y, Noguchi N, Katoh K, Nakamura H, Takamichi S, Nakata M, Kasahara K, Kawashiri S. Evaluation of obstructive sleep apnoea and sleep quality in patients with skeletal class III malocclusion. Int J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.ijom.2017.02.1107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Jokaji R, Ooi K, Ide K, Ishimiya M, Kobayashi Y, Kitahara H, Noguchi N, Katoh K, Nakamura H, Takamichi S, Nakata M, Kasahara K, Kawashiri S. Perioperative evaluation and management of obstructive sleep apnoea after mandibular setback by sagittal split ramus osteotomy. Int J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.ijom.2017.02.1093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Kobayashi Y, Ooi K, Ide K, Jokaji R, Noguchi N, Katoh K, Nakamura H, Takamichi S, Nakata M, Kasahara K, Kawashiri S. Evaluation of obstructive sleep apnoea using peripheral arterial tonometry during perioperative period after removal of impacted third molar with dentofacial deformity in general anaesthesia. Int J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.ijom.2017.02.1096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Suzuki Y, Haga S, Nakano M, Ishizaki H, Nakano M, Song S, Katoh K, Roh S. Postweaning changes in the expression of chemerin and its receptors in calves are associated with the modification of glucose metabolism. J Anim Sci 2016; 94:4600-4610. [PMID: 27898966 DOI: 10.2527/jas.2016-0677] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Chemerin, originally known as a chemoattractant derived from adipose tissue and the liver, has been reported to have regulatory functions in gluconeogenesis, peripheral insulin sensitivity, and insulin secretion. This study was conducted to assess the postweaning changes in expression of this cytokine and its physiological role in the modification of glucose metabolism associated with weaning. Eighteen tissue samples were collected from Holstein calves (90 d of age; n = 4) to investigate the tissue distributions of chemerin and its receptors genes. was highly expressed in the liver, and secreted chemerin protein was found in the plasma. Among the receptors of chemerin, and were ubiquitously expressed whereas was predominantly expressed in the liver. The changes in glucose metabolism and expression of these genes after weaning were assessed by comparing suckling calves (n = 6) and weaned calves (n = 8) of Japanese Black cattle. No significant difference was observed in plasma glucose levels between suckling and weaned calves (P = 0.22), whereas the plasma level of total ketone bodies was significantly higher in weaned calves (P < 0.01). Plasma levels of insulin and cortisol did not differ between suckling and weaned calves. The mRNA levels of certain key enzymes involved in hepatic gluconeogenesis were also altered; for instance, level was lower in postweaning calves (P < 0.05) and () level tended to be higher after weaning (P = 0.08). However, was not altered after weaning. The plasma levels of hepatic stress indicators were also changed, with aspartate transaminase, alanine transaminase, and lactate dehydrogenase being significantly elevated in postweaning calves (P < 0.05). Chemerin protein in liver tissue was less abundant in weaned calves (P < 0.05), although there were no changes in its transcript levels. The abundance of plasma chemerin protein did not change after weaning (P = 0.95). In summary, these data indicate that as a consequence of weaning, which causes physiological stress and alters hepatic metabolism, chemerin protein expression within the liver is downregulated, indicating that chemerin plays a role in the upregulation of hepatic expression via its inhibitory effect on hepatic gluconeogenesis.
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Haga S, Nakano M, Ishizaki H, Roh SG, Katoh K. Expression of α-tocopherol–associated genes and α-tocopherol accumulation in Japanese Black (Wagyu) calves with and without α-tocopherol supplementation1. J Anim Sci 2015; 93:4048-57. [DOI: 10.2527/jas.2015-9106] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Yi KJ, So KH, Hata Y, Suzuki Y, Kato D, Watanabe K, Aso H, Kasahara Y, Nishimori K, Chen C, Katoh K, Roh SG. The regulation of oxytocin receptor gene expression during adipogenesis. J Neuroendocrinol 2015; 27:335-42. [PMID: 25702774 DOI: 10.1111/jne.12268] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 01/27/2015] [Accepted: 02/17/2015] [Indexed: 01/02/2023]
Abstract
Although it has been reported that oxytocin stimulates lipolysis in adipocytes, changes in the expression of oxytocin receptor (OTR) mRNA in adipogenesis are still unknown. The present study aimed to investigate the expression of OTR mRNA during adipocyte differentiation and fat accumulation in adipocytes. OTR mRNA was highly expressed in adipocytes prepared from mouse adipose tissues compared to stromal-vascular cells. OTR mRNA expression was increased during the adipocyte differentiation of 3T3-L1 cells. OTR expression levels were higher in subcutaneous and epididymal adipose tissues of 14-week-old male mice compared to 7-week-old male mice. Levels of OTR mRNA expression were higher in adipose tissues at four different sites of mice fed a high-fat diet than in those of mice fed a normal diet. The OTR expression level was also increased by refeeding for 4 h after fasting for 16 h. Oxytocin significantly induced lipolysis in 3T3-L1 adipocytes. In conclusion, a new regulatory mechanism is demonstrated for oxytocin to control the differentiation and fat accumulation in adipocytes via activation of OTR as a part of the hypothalamic-pituitary-adipose axis.
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Affiliation(s)
- K J Yi
- Laboratory of Animal Physiology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
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Suzuki Y, Hong YH, Song SH, Ardiyanti A, Kato D, So KH, Katoh K, Roh SG. The Regulation of Chemerin and CMKLR1 Genes Expression by TNF-α, Adiponectin, and Chemerin Analog in Bovine Differentiated Adipocytes. Asian-Australas J Anim Sci 2014; 25:1316-21. [PMID: 25049696 PMCID: PMC4092937 DOI: 10.5713/ajas.2012.12083] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Revised: 06/24/2012] [Accepted: 03/23/2012] [Indexed: 01/14/2023]
Abstract
Adipokines, adipocyte-derived protein, have important roles in various kinds of physiology including energy homeostasis. Chemerin, one of adipocyte-derived adipokines, is highly expressed in differentiated adipocytes and is known to induce macrophage chemotaxis and glucose intolerance. The objective of the present study was to investigate the changes of chemerin and the chemokine-like-receptor 1 (CMKLR1) gene expression levels during differentiation of the bovine adipocyte and in differentiated adipocytes treated with tumor necrosis factor-α (TNF-α), adiponectin, leptin, and chemerin (peptide analog). The expression levels of the chemerin gene increased at d 6 and 12 of the differentiation period accompanied by increased cytoplasm lipid droplets. From d 6 onward, peroxisome proliferator-activated receptor-γ2 (PPAR-γ2) gene expression levels were significantly higher than that of d 0 and 3. In contrast, CMKLR1 expression levels decreased at the end of the differentiation period. In fully differentiated adipocytes (i.e. at d 12), the treatment of TNF-α and adiponectin upregulated both chemerin and CMKLR1 gene expression levels, although leptin did not show such effects. Moreover, chemerin analog treatment was shown to upregulate chemerin gene expression levels regardless of doses. These results suggest that the expression of chemerin in bovine adipocyte might be regulated by chemerin itself and other adipokines, which indicates its possible role in modulating the adipokine secretions in adipose tissues.
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Affiliation(s)
- Y Suzuki
- Laboratory of Animal Production, Faculty of Life and Environmental Science, Shimane University, Matsue, Shimane 690-8504, Japan
| | - Y H Hong
- Laboratory of Animal Production, Faculty of Life and Environmental Science, Shimane University, Matsue, Shimane 690-8504, Japan
| | - S H Song
- Laboratory of Animal Production, Faculty of Life and Environmental Science, Shimane University, Matsue, Shimane 690-8504, Japan
| | - A Ardiyanti
- Laboratory of Animal Production, Faculty of Life and Environmental Science, Shimane University, Matsue, Shimane 690-8504, Japan
| | - D Kato
- Laboratory of Animal Production, Faculty of Life and Environmental Science, Shimane University, Matsue, Shimane 690-8504, Japan
| | - K H So
- Laboratory of Animal Production, Faculty of Life and Environmental Science, Shimane University, Matsue, Shimane 690-8504, Japan
| | - K Katoh
- Laboratory of Animal Production, Faculty of Life and Environmental Science, Shimane University, Matsue, Shimane 690-8504, Japan
| | - S G Roh
- Laboratory of Animal Production, Faculty of Life and Environmental Science, Shimane University, Matsue, Shimane 690-8504, Japan
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Takahashi T, Sato K, Kato S, Yonezawa T, Kobayashi Y, Ohtani Y, Ohwada S, Aso H, Yamaguchi T, Roh SG, Katoh K. Increased plasma ghrelin suppresses insulin release in wethers fed with a high-protein diet. J Endocrinol 2014; 221:371-80. [PMID: 24639470 DOI: 10.1530/joe-13-0501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Ghrelin is a multifunctional peptide that promotes an increase of food intake and stimulates GH secretion. Ghrelin secretion is regulated by nutritional status and nutrients. Although a high-protein (HP) diet increases plasma ghrelin secretion in mammals, the mechanisms and the roles of the elevated ghrelin concentrations due to a HP diet have not been fully established. To clarify the roles of elevated acylated ghrelin upon intake of a HP diet, we investigated the regulation of ghrelin concentrations in plasma and tissues in wethers fed with either the HP diet or the control (CNT) diet for 14 days, and examined the action of the elevated plasma ghrelin by using a ghrelin-receptor antagonist. The HP diet gradually increased the plasma acylated-ghrelin concentrations, but the CNT diet did not. Although the GH concentrations did not vary significantly across the groups, an injection of ghrelin-receptor antagonist enhanced insulin levels in circulation in the HP diet group. In the fundus region of the stomach, the ghrelin levels did not differ between the HP and CNT diet groups, whereas ghrelin O-acyltransferase mRNA levels were higher in the group fed with HP diet than those of the CNT diet group were. These results indicate that the HP diet elevated the plasma ghrelin levels by increasing its synthesis; this elevation strongly suppresses the appearance of insulin in the circulation of wethers, but it is not involved in GH secretion. Overall, our findings indicate a role of endogenous ghrelin action in secretion of insulin, which acts as a regulator after the consumption of a HP diet.
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Affiliation(s)
- T Takahashi
- Laboratory of Animal PhysiologyLaboratory of Functional MorphologyGraduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amemiyamachi, Aoba-ku, Sendai 981-8555, Japan
| | - K Sato
- Laboratory of Animal PhysiologyLaboratory of Functional MorphologyGraduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amemiyamachi, Aoba-ku, Sendai 981-8555, Japan
| | - S Kato
- Laboratory of Animal PhysiologyLaboratory of Functional MorphologyGraduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amemiyamachi, Aoba-ku, Sendai 981-8555, Japan
| | - T Yonezawa
- Laboratory of Animal PhysiologyLaboratory of Functional MorphologyGraduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amemiyamachi, Aoba-ku, Sendai 981-8555, Japan
| | - Y Kobayashi
- Laboratory of Animal PhysiologyLaboratory of Functional MorphologyGraduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amemiyamachi, Aoba-ku, Sendai 981-8555, Japan
| | - Y Ohtani
- Laboratory of Animal PhysiologyLaboratory of Functional MorphologyGraduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amemiyamachi, Aoba-ku, Sendai 981-8555, Japan
| | - S Ohwada
- Laboratory of Animal PhysiologyLaboratory of Functional MorphologyGraduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amemiyamachi, Aoba-ku, Sendai 981-8555, Japan
| | - H Aso
- Laboratory of Animal PhysiologyLaboratory of Functional MorphologyGraduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amemiyamachi, Aoba-ku, Sendai 981-8555, Japan
| | - T Yamaguchi
- Laboratory of Animal PhysiologyLaboratory of Functional MorphologyGraduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amemiyamachi, Aoba-ku, Sendai 981-8555, Japan
| | - S G Roh
- Laboratory of Animal PhysiologyLaboratory of Functional MorphologyGraduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amemiyamachi, Aoba-ku, Sendai 981-8555, Japan
| | - K Katoh
- Laboratory of Animal PhysiologyLaboratory of Functional MorphologyGraduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amemiyamachi, Aoba-ku, Sendai 981-8555, Japan
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Yonekura S, Tokutake Y, Hirota S, Rose MT, Katoh K, Aso H. Proliferating bovine intramuscular preadipocyte cells synthesize leptin. Domest Anim Endocrinol 2013; 45:33-7. [PMID: 23623201 DOI: 10.1016/j.domaniend.2013.03.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Revised: 03/18/2013] [Accepted: 03/19/2013] [Indexed: 11/16/2022]
Abstract
Leptin is thought to be not only a satiety factor but also a stimulator of angiogenesis. We examined leptin, PPARγ2, and vascular endothelial growth factor (VEGF) expression in bovine intramuscular preadipocyte (BIP) cells during proliferation. The cells were seeded at 0.85 × 10(4) cells/cm(2) and collected every day until the fifth day after passage. Leptin mRNA was present in the cells between days 2 and 4, as indicated by RT-PCR analysis. Western blot analysis showed a band for leptin at approximately 16 kDa on all of the days during growth, and the cytoplasmic concentration of leptin was highest on day 2 and decreased gradually thereafter. A PPARγ2 band at approximately 54 kDa was also observed on all days. The concentration was highest on day 2 and decreased thereafter, which is similar to the expression pattern of leptin. In constant, the expression level of VEGF protein did not change while in culture. We have demonstrated that BIP cells can synthesize both leptin and PPARγ2, with maximal synthesis occurring during maximal proliferation. Given the role of leptin in angiogenesis, we speculate that leptin is involved in the neovascularization of adipose tissue, because new organization of adipose tissue requires the growth of new blood vessels.
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Affiliation(s)
- S Yonekura
- Department of Animal Physiology, Faculty of Agriculture, Shinshu University, Minamiminowa, Nagano 399-4598, Japan.
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Katoh K, Standley DM. MAFFT Multiple Sequence Alignment Software Version 7: Improvements in Performance and Usability. Mol Biol Evol 2013. [DOI: 10.1093/molbev/mst010 order by 1#] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Katoh K, Standley DM. MAFFT Multiple Sequence Alignment Software Version 7: Improvements in Performance and Usability. Mol Biol Evol 2013. [DOI: 10.1093/molbev/mst010 order by 1-- qjms] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Katoh K, Standley DM. MAFFT Multiple Sequence Alignment Software Version 7: Improvements in Performance and Usability. Mol Biol Evol 2013. [DOI: 10.1093/molbev/mst010 and extractvalue(9661,concat(0x5c,0x7162627a71,(select (elt(9661=9661,1))),0x71787a7671))] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Katoh K, Standley DM. MAFFT Multiple Sequence Alignment Software Version 7: Improvements in Performance and Usability. Mol Biol Evol 2013. [DOI: 10.1093/molbev/mst010 and 3004=3004-- upgm] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Katoh K, Standley DM. MAFFT Multiple Sequence Alignment Software Version 7: Improvements in Performance and Usability. Mol Biol Evol 2013. [DOI: 10.1093/molbev/mst010 and 3004=3004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Katoh K, Standley DM. MAFFT Multiple Sequence Alignment Software Version 7: Improvements in Performance and Usability. Mol Biol Evol 2013. [DOI: 10.1093/molbev/mst010 and 9880=5640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Katoh K, Standley DM. MAFFT Multiple Sequence Alignment Software Version 7: Improvements in Performance and Usability. Mol Biol Evol 2013. [DOI: 10.1093/molbev/mst010 order by 1-- hywi] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Katoh K, Standley DM. MAFFT Multiple Sequence Alignment Software Version 7: Improvements in Performance and Usability. Mol Biol Evol 2013. [DOI: 10.1093/molbev/mst010 and 9948=8094-- epkf] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Katoh K, Standley DM. MAFFT Multiple Sequence Alignment Software Version 7: Improvements in Performance and Usability. Mol Biol Evol 2013. [DOI: 10.1093/molbev/mst010 or extractvalue(7211,concat(0x5c,0x7162627a71,(select (elt(7211=7211,1))),0x71787a7671))] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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