AI Article Synopsis
- - Vesicular trafficking is essential for regulating Notch signaling, crucial for cell fate and development of sensory organs.
- - The gene tempura encodes a protein that forms a novel complex, which modifies Rab proteins (Rab1 and Rab11) to ensure their proper location within the cell.
- - Impairments in Rab1 and Rab11 due to tempura loss disrupt the secretion of Scabrous and Delta, leading to issues in Notch signaling and sensory organ development.
Article Abstract
Vesicular trafficking plays a key role in tuning the activity of Notch signaling. Here, we describe a novel and conserved Rab geranylgeranyltransferase (RabGGT)-α-like subunit that is required for Notch signaling-mediated lateral inhibition and cell fate determination of external sensory organs. This protein is encoded by tempura, and its loss affects the secretion of Scabrous and Delta, two proteins required for proper Notch signaling. We show that Tempura forms a heretofore uncharacterized RabGGT complex that geranylgeranylates Rab1 and Rab11. This geranylgeranylation is required for their proper subcellular localization. A partial dysfunction of Rab1 affects Scabrous and Delta in the secretory pathway. In addition, a partial loss Rab11 affects trafficking of Delta. In summary, Tempura functions as a new geranylgeranyltransferase that regulates the subcellular localization of Rab1 and Rab11, which in turn regulate trafficking of Scabrous and Delta, thereby affecting Notch signaling.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3904817 | PMC |
| http://dx.doi.org/10.1371/journal.pbio.1001777 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
An open-label, phase IB/II study of abemaciclib with paclitaxel for tumors with CDK4/6 pathway genomic alterations.
ESMO Open
January 2025
Department of Internal Medicine, Division of Medical Oncology, Yonsei University College of Medicine, Seoul, Republic of Korea. Electronic address:
Background: Disruption of cyclin D-dependent kinases (CDKs), particularly CDK4/6, drives cancer cell proliferation via abnormal protein phosphorylation. This open-label, single-arm, phase Ib/II trial evaluated the efficacy of the CDK4/6 inhibitor, abemaciclib, combined with paclitaxel against CDK4/6-activated tumors.
Patients And Methods: Patients with locally advanced or metastatic solid tumors with CDK4/6 pathway aberrations were included.
Fibroblast growth factor-inducible 14 regulates satellite cell self-renewal and expansion during skeletal muscle repair.
JCI Insight
January 2025
Institute of Muscle Biology and Cachexia, University of Houston College of Pharmacy, Houston, United States of America.
Skeletal muscle regeneration in adults is predominantly driven by satellite cells. Loss of satellite cell pool and function leads to skeletal muscle wasting in many conditions and disease states. Here, we demonstrate that the levels of fibroblast growth factor-inducible 14 (Fn14) were increased in satellite cells after muscle injury.
View Article and Find Full Text PDFThiosemicarbazone Complexes and 6-MP Suppress Acute Lymphoblastic Leukemia via the NOTCH Signaling Pathway and Regulation of LUNAR1 and NALT1 lncRNA.
Asian Pac J Cancer Prev
January 2025
Department of Genetics, Zanjan Branch, Islamic Azad University, Zanjan, Iran.
Background: Acute Lymphoblastic Leukemia (ALL) is the most common type of leukemia among children. There are several types of drugs that are common in treating and controlling leukemia, including 6-M. Moreover, the anti-cancer effects of the Thiosemicarbazone-Ni complex were surveyed as well as 6-MP.
View Article and Find Full Text PDFMultiomics characterization of breast angiosarcoma from an Asian cohort reveals enrichment for angiogenesis signaling pathway and tumor-infiltrating macrophages.
Front Immunol
January 2025
Cancer Discovery Hub, National Cancer Centre Singapore, Singapore, Singapore.
Introduction: Recent epidemiological data suggests a rising incidence of breast angiosarcoma (AS-B) in the Western population, with over two-thirds related to irradiation or chronic lymphedema. However, unlike head and neck angiosarcoma (AS-HN), AS-B disease characteristics in Asia remain unclear.
Methods: We examined clinical patterns of angiosarcoma patients (n = 176) seen in an Asiantertiary cancer center from 1999 to 2021, and specifically investigated the molecular and immune features of AS-B in comparison to AS-HN.
The role of VANGL2 in glioma oncogenesis and progression: insights into expression profiles and prognostic relevance.
Front Oncol
January 2025
Shanghai Institute of Precision Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Introduction: The Wnt/planar cell polarity (PCP) signaling pathway is pivotal in regulating various biological processes such as early embryonic development, neural crest cell migration, and cancer invasion. Despite advances in understanding the role of Wnt/PCP pathway dysregulation in tumorigenesis, numerous unanswered questions remain. Our study focused on VANGL2, a core PCP gene, to elucidate its potential mechanistic involvement in cancer development.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!