PapersFlow Research Brief
Caveolin-1 and cellular processes
Research Guide
What is Caveolin-1 and cellular processes?
Caveolin-1 is the primary structural protein of caveolae, specialized lipid raft domains in the plasma membrane that regulate cellular processes including endocytosis, cell signaling, membrane trafficking, mechanotransduction, vascular function, and cancer metastasis.
Caveolin-1 organizes caveolae, which function as platforms for signal transduction and membrane transport in eukaryotic cells, with 22,306 papers documenting these roles. Research highlights caveolae's involvement in lipid raft dynamics, as detailed in studies on raft structure and signaling. These structures contribute to processes like cholesterol homeostasis and leukocyte adhesion through regulated membrane organization.
Topic Hierarchy
Research Sub-Topics
Caveolae-Mediated Endocytosis
This sub-topic investigates the molecular mechanisms of caveolin-dependent endocytosis, including cargo selection and intracellular trafficking. Researchers study dynamin-independent pathways and regulatory proteins.
Caveolin in Cell Signaling
This sub-topic examines caveolin's scaffolding function in organizing signaling complexes within caveolae for pathways like MAPK and PI3K. Researchers explore cholesterol modulation and caveolin phosphorylation.
Caveolae in Membrane Trafficking
This sub-topic covers caveolae dynamics in transcytosis, lipid transport, and membrane repair processes. Researchers analyze PTRF/cavin complexes and mechanosensitive tubulation.
Caveolin and Vascular Dysfunction
This sub-topic focuses on caveolin-1 knockout models revealing eNOS dysregulation, atherosclerosis, and pulmonary hypertension. Researchers study caveolae mechanoprotection in endothelial cells.
Caveolae in Cancer Metastasis
This sub-topic explores caveolin's dual role as tumor suppressor or promoter in metastasis via matrix remodeling and exosome signaling. Researchers correlate caveolin expression with organotropism.
Why It Matters
Caveolin-1-mediated caveolae influence vascular dysfunction and cancer metastasis by modulating membrane trafficking and signaling pathways. For instance, tumour exosomes use specific integrins to direct organotropic metastasis, linking caveolae-related lipid rafts to cancer spread (Hoshino et al., 2015, "Tumour exosome integrins determine organotropic metastasis"). In cholesterol regulation, caveolin-1 supports receptor-mediated pathways essential for cellular homeostasis (Brown and Goldstein, 1986, "A Receptor-Mediated Pathway for Cholesterol Homeostasis"). These mechanisms affect blood-brain barrier integrity and inflammation responses, as seen in leukocyte adhesion cascades (Abbott et al., 2009, "Structure and function of the blood–brain barrier"; Ley et al., 2007, "Getting to the site of inflammation: the leukocyte adhesion cascade updated"). Disruptions contribute to diseases involving mechanotransduction and endothelial dysfunction.
Reading Guide
Where to Start
"Functional rafts in cell membranes" by Simons and Ikonen (1997) introduces the foundational concept of lipid rafts and caveolae, providing essential background on their structure before advancing to caveolin-1 functions.
Key Papers Explained
Simons and Ikonen (1997, "Functional rafts in cell membranes") established raft functionality, which Simons and Toomre (2000, "Lipid rafts and signal transduction") extended to signaling, and Lingwood and Simons (2009, "Lipid Rafts As a Membrane-Organizing Principle") refined as an organizing principle. Hynes (2002, "Integrins") connects rafts to adhesion, while Conner and Schmid (2003, "Regulated portals of entry into the cell") details caveolar endocytosis, building sequentially from structure to process integration.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Research centers on caveolin-1's roles in cancer metastasis via exosome integrins (Hoshino et al., 2015) and vascular barriers (Abbott et al., 2009), with no recent preprints or news indicating steady progress in established areas like signaling and trafficking.
Papers at a Glance
| # | Paper | Year | Venue | Citations | Open Access |
|---|---|---|---|---|---|
| 1 | Functional rafts in cell membranes | 1997 | Nature | 9.6K | ✕ |
| 2 | Integrins | 2002 | Cell | 8.4K | ✓ |
| 3 | Lipid rafts and signal transduction | 2000 | Nature Reviews Molecul... | 6.2K | ✕ |
| 4 | A Receptor-Mediated Pathway for Cholesterol Homeostasis | 1986 | Science | 5.7K | ✕ |
| 5 | Tumour exosome integrins determine organotropic metastasis | 2015 | Nature | 4.9K | ✓ |
| 6 | Structure and function of the blood–brain barrier | 2009 | Neurobiology of Disease | 4.9K | ✓ |
| 7 | Lipid Rafts As a Membrane-Organizing Principle | 2009 | Science | 4.3K | ✕ |
| 8 | Getting to the site of inflammation: the leukocyte adhesion ca... | 2007 | Nature reviews. Immuno... | 4.1K | ✕ |
| 9 | The SREBP Pathway: Regulation of Cholesterol Metabolism by Pro... | 1997 | Cell | 3.8K | ✓ |
| 10 | Regulated portals of entry into the cell | 2003 | Nature | 3.7K | ✕ |
Frequently Asked Questions
What role do caveolae play in cell signaling?
Caveolae, organized by caveolin-1, serve as platforms for signal transduction within lipid rafts. Simons and Toomre (2000) demonstrated in "Lipid rafts and signal transduction" how these domains concentrate signaling molecules. This organization facilitates efficient cellular responses to stimuli.
How are lipid rafts defined in relation to caveolin-1?
Lipid rafts are cholesterol- and sphingolipid-enriched membrane domains that caveolin-1 stabilizes to form caveolae. Simons and Ikonen (1997) established in "Functional rafts in cell membranes" their functional existence in cells. Lingwood and Simons (2009) further described them as a membrane-organizing principle in "Lipid Rafts As a Membrane-Organizing Principle".
What is the connection between caveolin-1 and cancer metastasis?
Caveolin-1 in caveolae influences tumour exosome integrins that dictate metastasis to specific organs. Hoshino et al. (2015) showed in "Tumour exosome integrins determine organotropic metastasis" how these integrins determine organ tropism. This links lipid raft-mediated trafficking to metastatic spread.
How do caveolae contribute to endocytosis?
Caveolae provide regulated portals for receptor-mediated endocytosis, distinct from clathrin pathways. Conner and Schmid (2003) outlined this in "Regulated portals of entry into the cell". Caveolin-1 structures these invaginations for cholesterol uptake and signaling.
What is the current state of research on caveolin-1 and cellular processes?
Over 22,306 papers explore caveolin-1's roles in endocytosis, signaling, and trafficking. Top-cited works focus on lipid rafts and integrins, with no recent preprints or news in the last 12 months. Growth data over 5 years is unavailable, indicating a mature field.
Open Research Questions
- ? How do caveolin-1 mutations specifically alter lipid raft dynamics in vascular dysfunction?
- ? What mechanisms link caveolae-mediated mechanotransduction to cancer metastasis organotropism?
- ? How do caveolin-1-organized rafts integrate integrin signaling with cholesterol homeostasis pathways?
- ? What are the precise roles of caveolae in blood-brain barrier permeability under inflammatory conditions?
- ? How do caveolar endocytosis pathways interact with leukocyte adhesion cascades during inflammation?
Recent Trends
The field encompasses 22,306 papers on caveolin-1 and cellular processes, with highly cited works from 1986-2015 emphasizing lipid rafts (e.g., Simons and Ikonen 1997 with 9595 citations; Lingwood and Simons 2009 with 4299 citations) and applications in metastasis and cholesterol regulation.
No growth rate over 5 years or recent preprints in the last 6 months are reported, reflecting consolidation of core findings.
Research Caveolin-1 and cellular processes with AI
PapersFlow provides specialized AI tools for Biochemistry, Genetics and Molecular Biology researchers. Here are the most relevant for this topic:
AI Literature Review
Automate paper discovery and synthesis across 474M+ papers
Paper Summarizer
Get structured summaries of any paper in seconds
Deep Research Reports
Multi-source evidence synthesis with counter-evidence
See how researchers in Life Sciences use PapersFlow
Field-specific workflows, example queries, and use cases.
Start Researching Caveolin-1 and cellular processes with AI
Search 474M+ papers, run AI-powered literature reviews, and write with integrated citations — all in one workspace.
See how PapersFlow works for Biochemistry, Genetics and Molecular Biology researchers