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View Study [5]"Recombinant expression of IGF-1 and LR3 IGF-1 fused with xylanase in Pichia pastoris" Lu Z, Liu N, et al., 2023 Finding: Purified LR3 IGF-1 displayed excellent bioactivity for cell proliferation comparable to standard IGF-1, confirming that the molecular modifications preserve its biological function while extending its active lifespan
Anabolic Signaling: The released GH stimulates the liver to produce IGF-1, which activates the mTORC1 pathway in muscle (protein synthesis) and the Runx2 pathway in bone (osteoblast differentiation)
Provost E et al
