The Activin Social Network: Activin, Inhibin, and Follistatin in Breast Development and Cancer.
Level 5 - mechanism / opinion, no new human data
Narrative review of biological mechanisms without systematic methodology or primary clinical data.
PubMed 30874767 · doi:10.1210/en.2019-00015
What was done
This is a narrative review synthesizing literature on the roles of the cytokine hormones activin, inhibin, and follistatin in mammary gland morphogenesis, homeostasis, and breast cancer pathogenesis.
What was found
The abstract reports no quantitative data or numerical outcomes. It describes the qualitative regulatory relationship where activin initiates downstream signaling cascades, inhibin acts as an opposing rheostat, and follistatin binds activin with high affinity to inhibit pathway activation.
Why it matters
The paper outlines how the balanced interaction among activin, inhibin, and follistatin influences mammary development and disease, highlighting pathway relationships relevant to breast cancer biology.
Limits
This is a non-systematic narrative review providing no primary clinical data, search strategy, quantitative synthesis, or study counts.
Cited by
- supports Follistatin enhances brain plasticity, reduces TGF-beta inflammatory markers, and is protective against breast and prostate cancers.