Regulating glycolysis and heat shock proteins in Gannan yaks (<i>Bos</i> <i>grunniens</i>) in response to hypoxia of the Qinghai–Tibet Plateau
<p>Glycolysis and heat shock proteins (HSPs) play an important role in hypoxia-intolerant species during hypoxia conditions. This study was conducted to evaluate the differences of glycolysis and heat shock proteins (HSPs) in Gannan yaks (<i>Bos grunniens</i>), with the main goal o...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2021-08-01
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| Series: | Archives Animal Breeding |
| Online Access: | https://aab.copernicus.org/articles/64/345/2021/aab-64-345-2021.pdf |
| _version_ | 1818908355691806720 |
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| author | Y. Wen J. Wang X. Liu S. Li J. Hu Y. Luo |
| author_facet | Y. Wen J. Wang X. Liu S. Li J. Hu Y. Luo |
| author_sort | Y. Wen |
| collection | DOAJ |
| description | <p>Glycolysis and heat shock proteins (HSPs) play an important role in
hypoxia-intolerant species during hypoxia conditions. This study was
conducted to evaluate the differences of glycolysis and heat shock proteins
(HSPs) in Gannan yaks (<i>Bos grunniens</i>), with the main goal of understanding how the response
to hypoxia changes with altitude. Here, the genes and enzymes of glycolysis
and HSPs were detected in heart, liver, lung, kidney, and longissimus dorsi
from Gannan yaks at different altitude (2500 and 3500 <span class="inline-formula">m</span>) using qPCR,
western blot, and enzyme kits. The results showed that the expression of
<i>HIF1A</i> and <i>PDK4</i> was increased with altitude (<span class="inline-formula"><i>P</i><0.01</span>) in above tissues.
Significantly increased lactate
dehydrogenase (LDH), adenosine triphosphate (ATP), and nicotinamide adenine
dinucleotide (NADH) levels and the ratio of
NADH/NAD<span class="inline-formula"><sup>+</sup></span> were also observed in heart, lung, and longissimus dorsi tissues
(<span class="inline-formula"><i>P</i><0.05</span>), as well as a decreased citric acid (CA) level (<span class="inline-formula"><i>P</i><0.05</span>).
Furthermore, we observed significant global increases in the protein and
mRNA expression levels of both the ATP-independent HSP27 and the
ATP-dependent HSP60 during hypoxic conditions (<span class="inline-formula"><i>P</i><0.01</span>). These
findings revealed that hypoxia-reprogrammed glucose metabolism promotes
energy supply via up-regulated glycolysis and weakness of the tricarboxylic acid
(TCA) cycle. HSPs were activated and the prioritization of cytoprotective
protein chaperone functions over energy conservation in yak under hypoxic conditions.
These results are useful to better understand the unique adaptability of yak, allowing them to survive in hypoxia conditions.</p> |
| first_indexed | 2024-12-19T22:09:42Z |
| format | Article |
| id | doaj.art-8305a6bf22b84dda8bc987fc0c0ceece |
| institution | Directory Open Access Journal |
| issn | 0003-9438 2363-9822 |
| language | English |
| last_indexed | 2024-12-19T22:09:42Z |
| publishDate | 2021-08-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Archives Animal Breeding |
| spelling | doaj.art-8305a6bf22b84dda8bc987fc0c0ceece2022-12-21T20:03:56ZengCopernicus PublicationsArchives Animal Breeding0003-94382363-98222021-08-016434535310.5194/aab-64-345-2021Regulating glycolysis and heat shock proteins in Gannan yaks (<i>Bos</i> <i>grunniens</i>) in response to hypoxia of the Qinghai–Tibet PlateauY. WenJ. WangX. LiuS. LiJ. HuY. Luo<p>Glycolysis and heat shock proteins (HSPs) play an important role in hypoxia-intolerant species during hypoxia conditions. This study was conducted to evaluate the differences of glycolysis and heat shock proteins (HSPs) in Gannan yaks (<i>Bos grunniens</i>), with the main goal of understanding how the response to hypoxia changes with altitude. Here, the genes and enzymes of glycolysis and HSPs were detected in heart, liver, lung, kidney, and longissimus dorsi from Gannan yaks at different altitude (2500 and 3500 <span class="inline-formula">m</span>) using qPCR, western blot, and enzyme kits. The results showed that the expression of <i>HIF1A</i> and <i>PDK4</i> was increased with altitude (<span class="inline-formula"><i>P</i><0.01</span>) in above tissues. Significantly increased lactate dehydrogenase (LDH), adenosine triphosphate (ATP), and nicotinamide adenine dinucleotide (NADH) levels and the ratio of NADH/NAD<span class="inline-formula"><sup>+</sup></span> were also observed in heart, lung, and longissimus dorsi tissues (<span class="inline-formula"><i>P</i><0.05</span>), as well as a decreased citric acid (CA) level (<span class="inline-formula"><i>P</i><0.05</span>). Furthermore, we observed significant global increases in the protein and mRNA expression levels of both the ATP-independent HSP27 and the ATP-dependent HSP60 during hypoxic conditions (<span class="inline-formula"><i>P</i><0.01</span>). These findings revealed that hypoxia-reprogrammed glucose metabolism promotes energy supply via up-regulated glycolysis and weakness of the tricarboxylic acid (TCA) cycle. HSPs were activated and the prioritization of cytoprotective protein chaperone functions over energy conservation in yak under hypoxic conditions. These results are useful to better understand the unique adaptability of yak, allowing them to survive in hypoxia conditions.</p>https://aab.copernicus.org/articles/64/345/2021/aab-64-345-2021.pdf |
| spellingShingle | Y. Wen J. Wang X. Liu S. Li J. Hu Y. Luo Regulating glycolysis and heat shock proteins in Gannan yaks (<i>Bos</i> <i>grunniens</i>) in response to hypoxia of the Qinghai–Tibet Plateau Archives Animal Breeding |
| title | Regulating glycolysis and heat shock proteins in Gannan yaks (<i>Bos</i> <i>grunniens</i>) in response to hypoxia of the Qinghai–Tibet Plateau |
| title_full | Regulating glycolysis and heat shock proteins in Gannan yaks (<i>Bos</i> <i>grunniens</i>) in response to hypoxia of the Qinghai–Tibet Plateau |
| title_fullStr | Regulating glycolysis and heat shock proteins in Gannan yaks (<i>Bos</i> <i>grunniens</i>) in response to hypoxia of the Qinghai–Tibet Plateau |
| title_full_unstemmed | Regulating glycolysis and heat shock proteins in Gannan yaks (<i>Bos</i> <i>grunniens</i>) in response to hypoxia of the Qinghai–Tibet Plateau |
| title_short | Regulating glycolysis and heat shock proteins in Gannan yaks (<i>Bos</i> <i>grunniens</i>) in response to hypoxia of the Qinghai–Tibet Plateau |
| title_sort | regulating glycolysis and heat shock proteins in gannan yaks i bos i i grunniens i in response to hypoxia of the qinghai tibet plateau |
| url | https://aab.copernicus.org/articles/64/345/2021/aab-64-345-2021.pdf |
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