Molecular Weight(MW): 360
LFM-A13 is a specific Bruton's tyrosine kinase (BTK) inhibitor with IC50 of 2.5 μM, >100-fold selectivity over other protein kinases including JAK1, JAK2, HCK, EGFR,and IRK.
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Crosslinking FcγRIIB triggers apoptosis through Btk and p38 MAPK in human B cells. a Purified naïve, memory B cells and PCs (105/ml) from seven donors were each treated with 10 μg/ml of ICs in the presence of either 2 μM of LFM-A13 or 10 nM of ibrutinib for 24 h. Apoptotic cells were determined by Annexin V staining (Biolegend) using flow cytometry. The asterisks indicate that the differences between the groups compared are statistically significant (P < 0.05).
J Biomed Sci, 2015, 22:87. . LFM-A13 purchased from Selleck.
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|Description||LFM-A13 is a specific Bruton's tyrosine kinase (BTK) inhibitor with IC50 of 2.5 μM, >100-fold selectivity over other protein kinases including JAK1, JAK2, HCK, EGFR,and IRK.|
In BTK+ B-lineage leukemic cells, LFM-A13 enhances their sensitivity to ceramide- or vincristine-induced apoptosis.  In BCL-1 cells, NALM-6 cells, or normal BALB/c splenocytes, LFM-13 inhibits the enzymatic activity of BTK in BCL-1 cells without affecting the BTK protein expression levels  In human neutrophils, LFM-A13 decreases the tyrosine phosphorylation induced by fMet-Leu-Phe and inhibits the production of superoxide anions and the stimulation of adhesion, chemotaxis, and phospholipase D activity. 
|In vivo||In BALB/c mice bearing BCL-1 leukemia, combination of LFM-A13 (50 mg/kg/day i.p.) and the standard triple-drug VPL prolongs the median survival time.  In primary myeloma-bearing SCID-rab mice, LFM-A13 inhibits osteoclast activity, prevents myeloma-induced bone resorption and suppresss myeloma growth. |
|In vitro||DMSO||72 mg/mL warmed (200.0 mM)|
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