Panobinostat (LBH589; NVP-LBH589) is a potent and orally active non-selective HDAC inhibitor, and has antineoplastic activities^[1][2]. Panobinostat induces HIV-1 virus production even at low concentration range 8-31 nM, stimulates HIV-1 expression in latently infected cells^[4]. Panobinostat induces cell apoptosis and autophagy. Panobinostat can be used for the study of refractory or relapsed multiple myeloma^[3].

Panobinosta (LBH589) induces apoptosis of both MOLT-4 and Reh cells in a time- and dose-dependent manner. Panobinosta treatment results in histone (H3K9 and H4K8) hyperacetylation and regulation of cell-cycle control genes in Reh cells^[1]. Panobinostat exhibites potent antiproliferative activity in human NSCLC cell lines with the IC₅₀ ranging from 5 to 100 nM^[2].

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

Panobinosta (10, 20 mg/kg, i.p.) significantly slows tumor growth derived from Meso and NSCLC cells in vivo models. Panobinosta markedly increases acetylation of histone H3 and H4 of H69 human SCLC cells harvest from SCID mice^[2]. Panobinostat (5, 10 and 20 mg/kg i.p.) demonstrates a clear benefit of decreased tumor burden, significantly improves TTE and reduces bone density loss in a disseminated multiple myeloma mouse model^[3].

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

349.43

C₂₁H₂₃N₃O₂

404950-80-7

帕比司他

Room temperature in continental US; may vary elsewhere.

DMSO : ≥ 57 mg/mL (163.12 mM)

* “≥” means soluble, but saturation unknown.

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请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液，再依次添加助溶剂：

——为保证实验结果的可靠性，澄清的储备液可以根据储存条件，适当保存；体内实验的工作液，建议您现用现配，当天使用； 以下溶剂前显示的百
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• 1.

  请依序添加每种溶剂： 10% DMSO    40% PEG300    5% Tween-80    45% saline

  Solubility: ≥ 2.5 mg/mL (7.15 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (7.15 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀；向上述体系中加入50 μL Tween-80，混合均匀；然后继续加入 450 μL生理盐水定容至 1 mL。

  将 0.9 g 氯化钠，完全溶解于 100 mL ddH₂O 中，得到澄清透明的生理盐水溶液

• 2.

  请依序添加每种溶剂： 10% DMSO    90% (20% SBE-β-CD in saline)

  Solubility: ≥ 2.5 mg/mL (7.15 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (7.15 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中，混合均匀。

  将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中，再用生理盐水定容至 10 mL，完全溶解，澄清透明
• 3.

  请依序添加每种溶剂： 10% DMSO    90% corn oil

  Solubility: ≥ 2.5 mg/mL (7.15 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (7.15 mM，饱和度未知) 的澄清溶液，此方案不适用于实验周期在半个月以上的实验。

  以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。

• 4.

  请依序添加每种溶剂： 5% DMSO    40% PEG300    5% Tween-80    50% saline

  Solubility: ≥ 2.5 mg/mL (7.15 mM); Clear solution
• 5.

  请依序添加每种溶剂： 5% DMSO    95% (20% SBE-β-CD in saline)

  Solubility: 2.5 mg/mL (7.15 mM); Suspended solution; Need ultrasonic

• [1]. Scuto A, et al. The novel histone deacetylase inhibitor, LBH589, induces expression of DNA damage response genes and apoptosis in Ph- acute lymphoblastic leukemia cells. Blood. 2008 May 15;111(10):5093-100.

  [2]. Crisanti MC, et al. The HDAC inhibitor panobinostat (LBH589) inhibits mesothelioma and lung cancer cells in vitro and in vivo with particular efficacy for small cell lung cancer. Mol Cancer Ther. 2009 Aug;8(8):2221-31.

  [3]. Ocio EM, et al. In vitro and in vivo rationale for the triple combination of panobinostat (LBH589) and dexamethasone with either bortezomib or lenalidomide in multiple myeloma. Haematologica. 2010 May;95(5):794-803.

  [4]. Banerjee NS, et al. Vorinostat, a pan-HDAC inhibitor, abrogates productive HPV-18 DNA amplification. Proc Natl Acad Sci U S A. 2018 Nov 20;115(47):E11138-E11147.

  [5]. Barton K, et al. Broad activation of latent HIV-1 in vivo. Nat Commun. 2016;7:12731. Published 2016 Sep 8.

Cells are washed with ice-cold PBS containing 0.1 mM sodium orthovanadate, and total proteins are isolated using RIPA lysis buffer, which includes protease inhibitors (leupeptin, antipain, and aprotinin), 0.5 mM PMSF, and 0.2 mM sodium orthovanadate. Protein amounts are quantified using the Bio-Rad protein assay. Equal amounts of proteins are loaded onto an sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) gel, transferred onto nitrocellulose membrane, and probed with the antibody of interest: mouse monoclonal c-Myc and mouse monoclonal p21 antibodies; rabbit polyclonal phospho-Histone H2A.X, rabbit polyclonal acetyl-Histone H3 (Lys9), and rabbit polyclonal acetyl-Histone H4 (Lys8) antibodies; mouse monoclonal p27/KIP1 antibody; mouse monoclonal anti-β-actin; and mouse monoclonal anti-GADD45G. Membranes are then washed, reprobed with appropriate horseradish peroxidase-conjugated secondary antibodies, and developed with SuperSignal chemiluminescent substrate.

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

AE17 and TC-1 cancer cells (1×10⁶ cells) are injected into the flanks of adult female C57Bl/6 mice and severe combined immunodeficiency (SCID) mice. M30 (10×10⁶ cells), A549 (5×10⁶ cells), H69 (2.5×10⁶ cells), BK-T (6.5×10⁶), H526 (10×10⁶), and RG1 (10×10⁶) cells are also injected, but in the presence of matrigel, into the flanks of SCID mice. When tumors reach 100 to 500 mm³, panobinostat is administered via i.p. injections (10-20 mg/kg) on a daily schedule (5-days-on, 2-days-off regimen) for the entire duration of the experiment. Control micereceive i.p. injections with dextrose 5% in water. Every tumor is measured with a caliper at least twice weekly. For evaluation of the effects of combination therapy on SCLC-derived tumors, SCID mice with H69 tumors are administered panobinostat. Three days after the initiation of panobinostat, and again 1 wk later, etoposide (40 mg/kg) is administered i.p.

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

• [1]. Scuto A, et al. The novel histone deacetylase inhibitor, LBH589, induces expression of DNA damage response genes and apoptosis in Ph- acute lymphoblastic leukemia cells. Blood. 2008 May 15;111(10):5093-100.

  [2]. Crisanti MC, et al. The HDAC inhibitor panobinostat (LBH589) inhibits mesothelioma and lung cancer cells in vitro and in vivo with particular efficacy for small cell lung cancer. Mol Cancer Ther. 2009 Aug;8(8):2221-31.

  [3]. Ocio EM, et al. In vitro and in vivo rationale for the triple combination of panobinostat (LBH589) and dexamethasone with either bortezomib or lenalidomide in multiple myeloma. Haematologica. 2010 May;95(5):794-803.

  [4]. Banerjee NS, et al. Vorinostat, a pan-HDAC inhibitor, abrogates productive HPV-18 DNA amplification. Proc Natl Acad Sci U S A. 2018 Nov 20;115(47):E11138-E11147.

  [5]. Barton K, et al. Broad activation of latent HIV-1 in vivo. Nat Commun. 2016;7:12731. Published 2016 Sep 8.