nod/scid

Avatrombopag (YM477) is a new oral thrombopoietin (TPO) receptor agonist, activating TPO receptor and increasing megakaryocytic proliferation/differentiation and platelet production.

ART838 is a dimeric pimeloyl urea compound notable for its potent anti-leukemic activity and favorable pharmacological properties. In vitro, ART-838 exhibits submicromolar inhibitory concentrations against all leukemia cell lines, demonstrating anti-leukemic efficacy 88 times greater than artemether. This compound remains in the body for extended periods and works synergistically with other anti-leukemic agents and novel kinase inhibitors to suppress leukemia cell growth. In immunodeficient NOD-SCID-IL2Rgnull (NSG) mice, ART-838 attains a plasma half-life longer than that of artemether, sustaining effective anti-leukemic concentrations for over 8 hours. Intermittent ART-838 treatment notably inhibited the growth of acute leukemia xenografts and primary grafts in NSG mice, surpassing the efficacy of artemether.

APD-94 is a dual inhibitor targeting tubulin and Bmi-1. It disrupts the normal polymerization of tubulin and suppresses the expression of Bmi-1. This compound induces cell cycle arrest at the G2/M phase and triggers apoptosis, thereby inhibiting cancer cell proliferation. Additionally, APD-94 inhibits the growth of HT29 cell xenograft tumors in NOD/SCID mice and is applicable to colorectal cancer research.

SW203668 is an irreversible inhibitor of stearoyl-CoA desaturase (IC50 = 54 nM). It is selectively cytotoxic to H2122, H460, HCC44, and HCC95 cell lines that express cytochrome P450 (CYP) isoform CYP4F11 over eight other cancer cell lines that lack CYP4F11 in vitro (IC50s = 22-116 and >10,000 nM, respectively) and ectopic expression of CYP4F11 in SW203668-insensitive H1155 cells results in sensitization to SW203668. In vivo, SW203668 reduces tumor growth rate without reducing sebocyte production in the H2122 wild-type and nonobese diabetic severe combined immunodeficiency (NOD-SCID) mouse xenograft models when administered at doses of 20 and 6 mg/kg, respectively.

AD4, an artemisinin derivative functioning as a proteolytic targeting chimera (PROTAC) for PCLAF, effectively degrades PCLAF in RS4;11 cells with an IC50 of 0.6 nM. This degradation activates the p21/Rb axis, resulting in antitumor activity. Furthermore, AD4 has been demonstrated to prolong survival in NOD/SCID mice transplanted with RS4;11 cells, showcasing its in vivo efficacy [1].