ArticleThe Journal of cell biology2014
PIP₃-dependent macropinocytosis is incompatible with chemotaxis.
Article in The Journal of cell biology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers, 1 of them a synthesis that pooled it.
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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.
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Who cites it
62 citing papers in PubMed, 1 synthesis or guideline pooled it, 94 citations in OpenAlex.
- A meta-analysis indicates that the regulation of cell motility is a non-intrinsic function of chemoattractant receptors that is governed independently of directional sensing.Frontiers in immunology · 2022Pooled it
- Discovery of actinators, actin-derived bioactive peptides that modulate cytoskeleton and actin-related cellular activities.Science advances · 2026Article
- A role for class I p21-activated kinases in the regulation of the excitability of the actin cytoskeleton.Journal of cell science · 2025Article
- Leep2A and Leep2B function as a RasGAP complex to regulate macropinosome formation.The Journal of cell biology · 2024Article
- Thyroid Cancers Exhibit Oncogene-Enhanced Macropinocytosis that Is Restrained by IGF1R and Promote Albumin-Drug Conjugate Response.Clinical cancer research : an official journal of the American Association for Cancer Research · 2023Article
- CYRI proteins: controllers of actin dynamics in the cellular 'eat vs walk' decision.Biochemical Society transactions · 2023Review
- Convergence of Ras- and Rac-regulated formin pathways is pivotal for phagosome formation and particle uptake inProceedings of the National Academy of Sciences of the United States of America · 2023Article
- PI Kinase-EhGEF2-EhRho5 axis contributes to LPA stimulated macropinocytosis in Entamoeba histolytica.PLoS pathogens · 2022Article
- Macropinocytosis and Cell Migration: Don't Drink and Drive….Sub-cellular biochemistry · 2022Article
- C2GAP2 is a common regulator of Ras signaling for chemotaxis, phagocytosis, and macropinocytosis.Frontiers in immunology · 2022Article
- Microtopographical guidance of macropinocytic signaling patches.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Article
- Dictyostelium discoideum: An Alternative Nonanimal Model for Developmental Toxicity Testing.Toxicological sciences : an official journal of the Society of Toxicology · 2021Article
- Leep1 interacts with PIP3 and the Scar/WAVE complex to regulate cell migration and macropinocytosis.The Journal of cell biology · 2021Article
- A 'dynamic adder model' for cell size homeostasis in Dictyostelium cells.Scientific reports · 2021Article
- Neutrophils self-limit swarming to contain bacterial growth in vivo.Science (New York, N.Y.) · 2021Article
- Phosphatidic acid-mediated binding and mammalian cell internalization of the Vibrio cholerae cytotoxin MakA.PLoS pathogens · 2021Article
- Filling GAPs in G protein- coupled receptor (GPCR)-mediated Ras adaptation and chemotaxis.Small GTPases · 2020Article
- Coordinated Ras and Rac Activity Shapes Macropinocytic Cups and Enables Phagocytosis of Geometrically Diverse Bacteria.Current biology : CB · 2020Article
- Article
2 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
Abstract
In eukaryotic chemotaxis, the mechanisms connecting external signals to the motile apparatus remain unclear. The role of the lipid phosphatidylinositol 3,4,5-trisphosphate (PIP₃) has been particularly controversial. PIP₃ has many cellular roles, notably in growth control and macropinocytosis as well as cell motility. Here we show that PIP₃ is not only unnecessary for Dictyostelium discoideum to migrate toward folate, but actively inhibits chemotaxis. We find that macropinosomes, but not pseudopods, in growing cells are dependent on PIP₃. PIP₃ patches in these cells show no directional bias, and overall only PIP₃-free pseudopods orient up-gradient. The pseudopod driver suppressor of cAR mutations (SCAR)/WASP and verprolin homologue (WAVE) is not recruited to the center of PIP₃ patches, just the edges, where it causes macropinosome formation. Wild-type cells, unlike the widely used axenic mutants, show little macropinocytosis and few large PIP₃ patches, but migrate more efficiently toward folate. Tellingly, folate chemotaxis in axenic cells is rescued by knocking out phosphatidylinositide 3-kinases (PI 3-kinases). Thus PIP₃ promotes macropinocytosis and interferes with pseudopod orientation during chemotaxis of growing cells.
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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.