ArticleCancers2021
Functional Specificity of the Members of the Sos Family of Ras-GEF Activators: Novel Role of Sos2 in Control of Epidermal Stem Cell Homeostasis.
Article in Cancers, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
10 citing papers in PubMed, 14 citations in OpenAlex.
- Screening Enamine Fragments Library in the Quest for Novel SOS2 Inhibitors: Pharmacophore Modelling, Molecular Docking, MMGBSA Calculations, and MD Simulation.Journal of pharmacy & bioallied sciences · 2025Article
- SOS1 inhibitor BI-3406 shows in vivo antitumor activity akin to genetic ablation and synergizes with a KRASProceedings of the National Academy of Sciences of the United States of America · 2025Article
- Sos1 ablation alters focal adhesion dynamics and increases Mmp2/9-dependent gelatinase activity in primary mouse embryonic fibroblasts.Cell communication and signaling : CCS · 2025Article
- The Role of the Swollen State in Cell Proliferation.The Journal of membrane biology · 2025Review
- SOS2 modulates the threshold of EGFR signaling to regulate osimertinib efficacy and resistance in lung adenocarcinoma.Molecular oncology · 2024Article
- The Configuration of GRB2 in Protein Interaction and Signal Transduction.Biomolecules · 2024Review
- SOS1 inhibition enhances the efficacy of and delays resistance to G12C inhibitors in lung adenocarcinoma.bioRxiv : the preprint server for biology · 2023Article
- Critical requirement of SOS1 for tumor development and microenvironment modulation in KRASNature communications · 2023Article
- Critical Requirement of SOS1 for Development of BCR/ABL-Driven Chronic Myelogenous Leukemia.Cancers · 2022Article
- SOS2 Comes to the Fore: Differential Functionalities in Physiology and Pathology.International journal of molecular sciences · 2021Review
Corrections and comments
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Authors and funding
11 authors at 1 institution in 1 country.
Funding
Abstract
Prior reports showed the critical requirement of Sos1 for epithelial carcinogenesis, but the specific functionalities of the homologous Sos1 and Sos2 GEFs in skin homeostasis and tumorigenesis remain unclear. Here, we characterize specific mechanistic roles played by Sos1 or Sos2 in primary mouse keratinocytes (a prevalent skin cell lineage) under different experimental conditions. Functional analyses of actively growing primary keratinocytes of relevant genotypes-WT, Sos1-KO, Sos2-KO, and Sos1/2-DKO-revealed a prevalent role of Sos1 regarding transcriptional regulation and control of RAS activation and mechanistic overlapping of Sos1 and Sos2 regarding cell proliferation and survival, with dominant contribution of Sos1 to the RAS-ERK axis and Sos2 to the RAS-PI3K/AKT axis. Sos1/2-DKO keratinocytes could not grow under 3D culture conditions, but single Sos1-KO and Sos2-KO keratinocytes were able to form pseudoepidermis structures that showed disorganized layer structure, reduced proliferation, and increased apoptosis in comparison with WT 3D cultures. Remarkably, analysis of the skin of both newborn and adult Sos2-KO mice uncovered a significant reduction of the population of stem cells located in hair follicles. These data confirm that Sos1 and Sos2 play specific, cell-autonomous functions in primary keratinocytes and reveal a novel, essential role of Sos2 in control of epidermal stem cell homeostasis.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.