{"product_id":"tb-500","title":"TB-500: Tissue Repair \u0026 Cell Migration","description":"\u003ch3 dir=\"ltr\"\u003eActin Dynamics and Directed Cell Migration for Tissue Healing\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003eTB-500 is a synthetic 17-amino-acid fragment of thymosin beta-4 (TB-4), containing the LKKTET actin-binding motif responsible for cytoskeletal regulation and directed cell migration. This module makes a critical distinction: TB-500 is a fragment, not full TB-4. It retains actin dynamics and cell migration activity but does not replicate TB-4’s direct cytokine modulation, Akt\/ERK activation, VEGF\/FGF upregulation, or stem cell recruitment.\u003cbr\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eTB-500 is positioned as an adjunctive, repair-oriented peptide — always used after documented failure of standard care, never as a first-line or standalone therapy.\u003cbr\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\" class=\"fs-gold\"\u003e\u003cspan\u003eEvidence Tier: B–C — Phase 2 human trials for injectable wound healing (TB-4 derivatives); no human data for oral liposomal form. \u003c\/span\u003e\u003c\/p\u003e\n","brand":"Cell Signaling Institute","offers":[{"title":"Default Title","offer_id":47237824512149,"sku":null,"price":199.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/7359\/6053\/files\/pdp_logo.png?v=1775623177","url":"https:\/\/cellsignalinginstitute.com\/products\/tb-500","provider":"Cell Signaling Institute","version":"1.0","type":"link"}