Bisindolylmaleimide XI hydrochloride  (Synonyms: Ro 32-0432; Ro 31-8830 hydrochloride)

Bisindolylmaleimide XI hydrochloride (Ro 32-0432) is a potent, selective and orally active PKC inhibitor with IC₅₀s of 9 nM, 28 nM, 31 nM, 37 nM, and 108 nM for PKCα, PKCβI, PKCβII, PKCγ, and PKCε, respectively^[1][2].

Bisindolylmaleimide XI hydrochloride (Ro 32-0432) inhibits IL-2 secretion, IL-2 receptor expression in, and proliferation of, peripheral human T-cells stimulated with phorbol ester together with phytohemagglutin or anti-CD3, but does not inhibit IL-2 induced proliferation in cells already stimulated to express IL-2 receptors. Proliferation of the influenza peptide antigen HA 307-319-specific human T-cell clone (HA27) after exposure to antigen-pulsed autologous presenting cells is also inhibited by Bisindolylmaleimide XI hydrochloride^[2].
PKC inhibition with Bisindolylmaleimide XI hydrochloride (Ro 32-0432; 1 μM) decreases the proportion of apoptotic cells (-21%) in retinal progenitor cells (RPCs)^[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Oral administration of Bisindolylmaleimide XI hydrochloride inhibits subsequent phorbol ester-induced edema in ratss. Induction of more physiologically T-cell driven responses such as host vs. graft responses and the secondary paw swelling in adjuvant-induced arthritis are also inhibited by Bisindolylmaleimide XI hydrochloride^[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

489.01

C₂₈H₂₉ClN₄O₂

145333-02-4

Solid

Yellow to orange

O=C(NC1=O)C(C2=C3CC(CCN3C4=C2C=CC=C4)CN(C)C)=C1C5=CN(C6=C5C=CC=C6)C.Cl

Room temperature in continental US; may vary elsewhere.

-20°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

• [1]. S E Wilkinson, et al. Isoenzyme specificity of bisindolylmaleimides, selective inhibitors of protein kinase C. Biochem J. 1993 Sep 1;294 ( Pt 2)(Pt 2):335-7.  [Content Brief]

  [2]. A M Birchall, et al. Ro 32-0432, a selective and orally active inhibitor of protein kinase C prevents T-cell activation. J Pharmacol Exp Ther. 1994 Feb;268(2):922-9.  [Content Brief]

  [3]. Roman Kholodenko, et al. Anti-apoptotic effect of retinoic acid on retinal progenitor cells mediated by a protein kinase A-dependent mechanism. Cell Res. 2007 Feb;17(2):151-62.  [Content Brief]