ArticleScientific reports2022
Loss of KAP3 decreases intercellular adhesion and impairs intracellular transport of laminin in signet ring cell carcinoma of the stomach.
Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 6 citations in OpenAlex.
- A comprehensive proteomic analysis uncovers novel molecular subtypes of gastric signet ring cell carcinoma: Identification of potential prognostic biomarkers and therapeutic targets.Genes & diseases · 2026Article
- Comparative Study of ERK1/2, Bcl2, and Sorcin with Clinicopathological Characteristics of Gastric carcinoma: Tubular Adenocarcinoma Vs Signet Ring Cell Carcinoma.Asian Pacific journal of cancer prevention : APJCP · 2025Article
- Emerging functions of Plakophilin 4 in the control of cell contact dynamics.Cell communication and signaling : CCS · 2025Review
- KAP is the neuronal organelle adaptor for Kinesin-2 KIF3AB and KIF3AC.Molecular biology of the cell · 2022Article
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Authors and funding
16 authors at 2 institutions in 1 country.
Funding
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Abstract
Signet-ring cell carcinoma (SRCC) is a unique subtype of gastric cancer that is impaired for cell-cell adhesion. The pathogenesis of SRCC remains unclear. Here, we show that expression of kinesin-associated protein 3 (KAP3), a cargo adaptor subunit of the kinesin superfamily protein 3 (KIF3), a motor protein, is specifically decreased in SRCC of the stomach. CRISPR/Cas9-mediated gene knockout experiments indicated that loss of KAP3 impairs the formation of circumferential actomyosin cables by inactivating RhoA, leading to the weakening of cell-cell adhesion. Furthermore, in KAP3 knockout cells, post-Golgi transport of laminin, a key component of the basement membrane, was inhibited, resulting in impaired basement membrane formation. Together, these findings uncover a potential role for KAP3 in the pathogenesis of SRCC of the stomach.
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