KRFK TFA_product_DataBase

Bioactivity	KRFK TFA, a peptide derived from TSP-1, can activate TGF-β. KRFK TFA promotes TGF-β-mediated signaling and its downstream role, independent of thrombospondin (TSP) receptors such as CD47 and CD36. KRFK TFA can be used for chronic ocular surface inflammatory disorders reseach[1].
Target	TGF-β
Invitro	KRFK TFA (50 μm; 24 h) 激活 TGF-β 的分泌，降低 TSP-1 缺陷骨髓源性树突状细胞 (BMDCs) 中 DC 成熟标记物的表达[1]。
In Vivo	KRFK TFA (单只眼用药 5 μg/5 μL; 单剂量) 显著预防 TSP-1-/- 小鼠慢性眼表炎症的发生[1]。
Name	KRFK TFA
Sequence	Lys-Arg-Phe-Lys
Shortening	KRFK
Formula	C27H47N9O5.xC2HF3O2
Molar Mass	577.73 (free base)
Appearance	Solid
Transport	Room temperature in continental US; may vary elsewhere.
Storage	-20°C, sealed storage, away from moisture *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Reference	[1]. Soriano-Romaní L, et al. Topical Application of TGF-β-Activating Peptide, KRFK, Prevents Inflammatory Manifestations in the TSP-1-Deficient Mouse Model of Chronic Ocular Inflammation. Int J Mol Sci. 2018 Dec 20;20(1):9.

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