B7-33 (Relaxin-2 B-Chain Mimetic Peptide)

B7-33 is an experimental single-chain peptide designed from the B-chain of human Relaxin-2. Unlike the two-chain structure of native Relaxin-2, B7-33 uses a simplified peptide architecture to investigate relaxin-associated receptor signaling and downstream biological mechanisms.

One of the principal research targets associated with B7-33 is RXFP1 (Relaxin Family Peptide Receptor 1), a G protein-coupled receptor involved in multiple cellular signaling pathways associated with Relaxin-2.

In life science research, B7-33 is investigated in connection with RXFP1 receptor signaling, extracellular matrix (ECM) regulation, collagen-related processes, fibroblast biology, fibrosis-related mechanisms, and tissue remodeling.

Preclinical research has also explored B7-33 in cardiovascular, renal, and other tissue fibrosis models, making it a useful experimental tool for studying relationships between Relaxin/RXFP1 signaling, extracellular matrix remodeling, and tissue biology.

B7-33 remains an experimental research peptide, and findings from laboratory or preclinical studies should not be interpreted as established anti-fibrotic, cardioprotective, or other therapeutic effects in humans.

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