autocrine.com explains how cells produce signals that bind to their own receptors, and how these self-signaling loops drive growth, differentiation, immune responses and disease. Plain-language guides, articles, a glossary and free study tools for students, educators and curious readers.
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Understanding the fundamental pathways through which cells communicate with themselves and their microenvironment.
EGF, TGF-alpha, and PDGF autocrine loops drive cellular proliferation. Dysregulation of these pathways is implicated in oncogenesis and tumor progression.
IL-6, TNF-alpha, and interferon autocrine signaling modulates immune cell activation, inflammation, and autoimmune disease mechanisms.
Autocrine Wnt signaling maintains stem cell self-renewal and tissue homeostasis. Aberrant activation contributes to colorectal and other cancers.
RTK autocrine activation through EGFR, FGFR, and VEGFR families drives angiogenesis, cell migration, and survival signaling cascades.
BDNF and NGF autocrine loops support neuronal survival, synaptic plasticity, and are therapeutic targets in neurodegenerative diseases.
These developmental signaling pathways operate in autocrine modes during tissue patterning, and their dysregulation drives basal cell carcinoma and leukemia.
From ligand synthesis to transcriptional response -- the complete cellular self-communication loop.
Cell produces signaling molecules (growth factors, cytokines) via gene transcription and translation.
Ligands are secreted into the extracellular space via exocytosis or membrane-bound shedding.
Ligands bind to receptors on the same cell's surface, triggering receptor dimerization and activation.
Activated receptors initiate intracellular cascades (MAPK, PI3K/Akt, JAK/STAT) leading to gene expression changes.
Explanatory articles on autocrine and related cell signaling.
How tumour cells exploit EGFR/TGF-alpha, PDGF, IL-6/STAT3 and VEGF loops to sustain their own growth, and how these loops are targeted.
Read articleThe textbook example of autocrine signaling: how activated T cells drive their own expansion with interleukin-2, and why it matters clinically.
Read articleHow autocrine Wnt, TGF-beta/Nodal, FGF and IL-6 signals help stem cells self-renew, and what this means for regenerative medicine.
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