HUNK inhibits cargo uptake and lysosomal traffic in the caveolar pathway

内吞作用和内体运输在细胞生理或病理学中发挥着重要作用,但其潜在的信号通路和机制尚不完全清楚。我们发现HUNK 缺陷会促进洞穴介导的内吞作用 (CavME),并以激酶依赖的方式增强溶酶体货物转运。在机制上,HUNK 磷酸化 AGAP3 的 396 位丝氨酸位点,这对于 AGAP3 募集到早期内体至关重要。AGAP3 的磷酸化会降低 ARF6 的活性和内体定位,进一步抑制内体运输以及溶酶体与内吞内体的融合。总之,我们的研究揭示了 HUNK/AGAP3/ARF6 轴对 CavME 和内体运输的选择性调控,并可能对相关疾病产生影响。

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Publication Details

Journal
Chinese Science Bulletin (Chinese Version)
Published
2025-07-16
DOI
https://doi.org/10.1360/csb-2025-5095
Primary Topic
Caveolin-1 and cellular processes
Type
article
Field-Weighted Citation Impact
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article

HUNK inhibits cargo uptake and lysosomal traffic in the caveolar pathway

Shan Gao, X. Cui, Siyuan Jiang
Chinese Science Bulletin (Chinese Version)
Caveolin-1 and cellular processes
article

HUNK inhibits cargo uptake and lysosomal traffic in the caveolar pathway

Shan Gao, X. Cui, Siyuan Jiang
article en

Abstract

内吞作用和内体运输在细胞生理或病理学中发挥着重要作用,但其潜在的信号通路和机制尚不完全清楚。我们发现HUNK 缺陷会促进洞穴介导的内吞作用 (CavME),并以激酶依赖的方式增强溶酶体货物转运。在机制上,HUNK 磷酸化 AGAP3 的 396 位丝氨酸位点,这对于 AGAP3 募集到早期内体至关重要。AGAP3 的磷酸化会降低 ARF6 的活性和内体定位,进一步抑制内体运输以及溶酶体与内吞内体的融合。总之,我们的研究揭示了 HUNK/AGAP3/ARF6 轴对 CavME 和内体运输的选择性调控,并可能对相关疾病产生影响。

Chinese Science Bulletin (Chinese Version)Vol. 70(26)
Life below water
Openalex Percentile: Top 82%
Caveolin-1 and cellular processes
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HUNK inhibits cargo uptake and lysosomal traffic in the caveolar pathway — Shan Gao, X. Cui, et al. · Chinese Science Bulletin (Chinese Version) (2025) | TGRS Research Map | TGRS