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Actin related protein 2/3 complex subunit 1 up‐regulation in the hypothalamus prevents high‐fat diet induced obesity.

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Title: Actin related protein 2/3 complex subunit 1 up‐regulation in the hypothalamus prevents high‐fat diet induced obesity.
Authors: Ni, Weimin (AUTHOR), Zhang, Jie (AUTHOR), Wang, Bing (AUTHOR), Liang, Feng (AUTHOR), Bao, Long (AUTHOR), Li, Pengfei (AUTHOR), Fang, Yan (AUTHOR)
Source: European Journal of Neuroscience. Jan2023, Vol. 57 Issue 1, p64-77. 14p. 1 Color Photograph, 1 Diagram, 4 Graphs.
Subjects: Leptin, High-fat diet, Actin, Hypothalamus, Transcription factors, Microfilament proteins
Abstract: Obesity is a major health crisis in the modern society. Studies have shown that the consumption of a high‐fat diet (HFD) induces hypothalamic inflammation and leptin resistance, which consequently favours body mass gain. Actin related protein 2/3 complex subunit 1 (ARPC1B), an actin‐binding protein, is highly expressed in immune cells. Recent studies have shown that ARPC1B has a certain anti‐inflammatory effect. While ARPC1B expression is decreased in the hypothalamus of mice fed a HFD, the role of ARPC1B in HFD‐induced obesity remains unclear. Thus, we investigated whether ARPC1B up‐regulation in the hypothalamic arcuate nucleus (ARC) could inhibit the development of obesity. Herein, ARPC1B overexpression lentiviral particles were stereotaxically injected into the ARC of male C57BL/6J mice (7 weeks old) fed with HFD. Overexpression of ARPC1B in the hypothalamic ARC attenuated HFD‐induced ARC inflammation, reduced body‐weight gain and feed efficiency. Furthermore, up‐regulation of ARC ARPC1B improved the glucose tolerance and reduced subcutaneous/epididymal fat mass accumulation, which decreased the serum total cholesterol, serum triglyceride and leptin levels. In addition, upon ARPC1B overexpression in the hypothalamic ARC, intraperitoneal injection of leptin increased the phosphorylation level of signal transducer and activator of transcription 3 (STAT3), an important transcription factor for leptin's action, in the ARC of obese mice. Accordingly, we suggest that up‐regulation of ARPC1B in the hypothalamic ARC may improve the HFD‐induced hypothalamic inflammation and leptin resistance. Our findings demonstrate that ARPC1B is a promising target for the treatment of diet‐induced obesity. [ABSTRACT FROM AUTHOR]
Copyright of European Journal of Neuroscience is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Label: Title
  Group: Ti
  Data: Actin related protein 2/3 complex subunit 1 up‐regulation in the hypothalamus prevents high‐fat diet induced obesity.
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  Data: <searchLink fieldCode="AR" term="%22Ni%2C+Weimin%22">Ni, Weimin</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Jie%22">Zhang, Jie</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Bing%22">Wang, Bing</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liang%2C+Feng%22">Liang, Feng</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bao%2C+Long%22">Bao, Long</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Pengfei%22">Li, Pengfei</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fang%2C+Yan%22">Fang, Yan</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22European+Journal+of+Neuroscience%22">European Journal of Neuroscience</searchLink>. Jan2023, Vol. 57 Issue 1, p64-77. 14p. 1 Color Photograph, 1 Diagram, 4 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Leptin%22">Leptin</searchLink><br /><searchLink fieldCode="DE" term="%22High-fat+diet%22">High-fat diet</searchLink><br /><searchLink fieldCode="DE" term="%22Actin%22">Actin</searchLink><br /><searchLink fieldCode="DE" term="%22Hypothalamus%22">Hypothalamus</searchLink><br /><searchLink fieldCode="DE" term="%22Transcription+factors%22">Transcription factors</searchLink><br /><searchLink fieldCode="DE" term="%22Microfilament+proteins%22">Microfilament proteins</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Obesity is a major health crisis in the modern society. Studies have shown that the consumption of a high‐fat diet (HFD) induces hypothalamic inflammation and leptin resistance, which consequently favours body mass gain. Actin related protein 2/3 complex subunit 1 (ARPC1B), an actin‐binding protein, is highly expressed in immune cells. Recent studies have shown that ARPC1B has a certain anti‐inflammatory effect. While ARPC1B expression is decreased in the hypothalamus of mice fed a HFD, the role of ARPC1B in HFD‐induced obesity remains unclear. Thus, we investigated whether ARPC1B up‐regulation in the hypothalamic arcuate nucleus (ARC) could inhibit the development of obesity. Herein, ARPC1B overexpression lentiviral particles were stereotaxically injected into the ARC of male C57BL/6J mice (7 weeks old) fed with HFD. Overexpression of ARPC1B in the hypothalamic ARC attenuated HFD‐induced ARC inflammation, reduced body‐weight gain and feed efficiency. Furthermore, up‐regulation of ARC ARPC1B improved the glucose tolerance and reduced subcutaneous/epididymal fat mass accumulation, which decreased the serum total cholesterol, serum triglyceride and leptin levels. In addition, upon ARPC1B overexpression in the hypothalamic ARC, intraperitoneal injection of leptin increased the phosphorylation level of signal transducer and activator of transcription 3 (STAT3), an important transcription factor for leptin's action, in the ARC of obese mice. Accordingly, we suggest that up‐regulation of ARPC1B in the hypothalamic ARC may improve the HFD‐induced hypothalamic inflammation and leptin resistance. Our findings demonstrate that ARPC1B is a promising target for the treatment of diet‐induced obesity. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of European Journal of Neuroscience is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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        Value: 10.1111/ejn.15871
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        Text: English
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      – SubjectFull: Leptin
        Type: general
      – SubjectFull: High-fat diet
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      – SubjectFull: Actin
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      – SubjectFull: Hypothalamus
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      – SubjectFull: Transcription factors
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      – SubjectFull: Microfilament proteins
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      – TitleFull: Actin related protein 2/3 complex subunit 1 up‐regulation in the hypothalamus prevents high‐fat diet induced obesity.
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              M: 01
              Text: Jan2023
              Type: published
              Y: 2023
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