Panobinostat (LBH589)

Catalog No.S1030 Batch:S103011

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Technical Data

Formula

C21H23N3O2
Molecular Weight 349.43 CAS No. 404950-80-7
Solubility (25°C)* In vitro DMSO 70 mg/mL (200.32 mM)
Water Insoluble
Ethanol Insoluble
In Vivo (Add solvents to the product individually and in order.)
Homogeneous suspension
CMC-NA
≥5mg/ml Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

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Biological Activity

Description Panobinostat (LBH589, NVP-LBH589) is a novel broad-spectrum HDAC inhibitor with IC50 of 5 nM in a cell-free assay. It induces autophagy and apoptosis, and effectively disrupts HIV latency in vivo. Phase 3.
Targets
HDAC (MOLT-4 cells) HDAC (Reh cells)
5 nM 20 nM
In vitro Panobinostat (LBH589) induces apoptosis among MOLT-4 and Reh cells in a time- and dose-dependent manner, and is more potent in MOLT-4 than in Reh cells. It markedly prevents the growth of both cell lines in a dose-dependent manner at 48 hours, and causes a 2- to 3-fold increase in the number of cells in the G2/M phase of the cell cycle compared with the control cells. This compound is associated with induction of histone H3K9 and histone H4K8 acetylation as well as decreasing levels of c-Myc expression in a dose-dependent manner. It also increases the levels of p21 expression, and decreases the levels of c-Myc after an initial increase at the lowest dose (10 nM) in Reh cells. In addition, it gives rise to substantial increases in mRNA levels of proapoptosis and DNA repair genes, and induces increased levels of acetylated histone H3 and H4 at the GADD45G promoter. Besides, it inhibits growth of non small cell lung cancer cell lines (such as human H1299, L55 and A549 with IC50 of 5 nM, 11 nM and 30 nM, respectively), mesothelioma (such as human OK-6 and Ok-5 with IC50 of 5 nM and 7 nM, respectively) and small cell lung cancer cell lines (such as human RG-1 and LD-T with IC50 of 4 nM and 5 nM, respectively).
In Vivo In lung cancer and mesothelioma animal models, Panobinostat (LBH589) markedly decreases tumour growth by 62%. It is equally effective in immunocompetent and severe combined immunodeficiency mice, suggesting that the inhibition of tumour growth by this compound is not due to direct immunologic effects. Daily administration, given i.p. at 20 mg/kg for 5 days per week, leads to an average decrease in growth of 70%. Compared with the corresponding control tumours, it results in a 53% decrease for H526-derived tumours, an 81% decrease for BK-T-derived tumours, a 76% decrease for RG-1-derived tumours, and a 70% decrease for H69-derived tumours. In contrast to the lack of tumour regression notes in NSCLC and Meso-derived xenografted tumours that are treated under identical conditions and doses, LBH589 leads to dramatic tumour regression in SCLC-derived tumours and RG-1-derived tumour.

Protocol (from reference)

Cell Assay:[1]
  • Cell Lines

    MOLT-4 cell lines and Reh (pre-B cells)

  • Concentrations

    50 nM

  • Incubation Time

    48 hours

  • Method

    Untreated and LBH589-treated cells [human Ph- acute lymphoblastic leukemia MOLT-4 (T cells) and Reh (pre-B cells)] are stained with annexin V and propidium iodide using annexin V-FITC apoptosis detection kit I. The percentage of apoptotic and nonviable cells is determined by flow cytometry. At least 5 × 104 cells are collected with a CyAn ADP Violet cytometer. Percentage apoptosis is calculated considering all the annexin V-positive plus the annexin V/PI-positive cells; percentage loss of cell viability is calculated considering all the annexin V-positive plus the PI-positive and the annexinV/PI-positive cells.
Animal Study:[2]
  • Animal Models

    Severe combined immunodeficiency (SCID) mice with M30 (107 cells) or A549 (5 × 106 cells), H69 (2.5 × 106 cells), BK-T (6.5 × 106), H526 (10 × 106), and RG1 (10 × 106) cells

  • Dosages

    10 mg/kg, 20 mg/kg

  • Administration

    Administered via i.p. injection

References

  • https://pubmed.ncbi.nlm.nih.gov/18349321/
  • https://pubmed.ncbi.nlm.nih.gov/19671764/
  • https://pubmed.ncbi.nlm.nih.gov/19951978/
  • https://pubmed.ncbi.nlm.nih.gov/16740717/
  • https://pubmed.ncbi.nlm.nih.gov/19344997/

Customer Product Validation

<p>LSD1 and HDAC inhibitors exhibit synergistic growth inhibition. Cells were simultaneously treated with pargyline or HDAC inhibitors for 48 h.</p><div><div> </div></div><p> </p>

Data from [ Breast Cancer Res Treat , 2012 , 131, 777-789 ]

<p>HDACIs That Simultaneously Inhibit HDACs 1 and 6 Showed Greater Antileukemic Activities than HDACIs that Don’t at Cmax Concentrations. THP-1 cells were treated with LBH-589, PXD101, SAHA, VPA, MS-275 and MGCD0103 at Cmax concentrations for 3 h and 24 h, respectively. The cells post 3 h treatments were washed three times with complete medium and divided into two halves. One half of the cells was resuspended in complete media and cultured for up to 24 h to determine the effects of the 3 h treatments on cell proliferation and apoptosis. The other half of the cells was used to prepare whole cell lysates. Whole cell lysates from the 3 h and 24 h treatments were extracted and subjected to Western blots probed by anti-ac-tubulin or –b-actin antibody (panels A&B), or subjected to HDAC1 enzymatic assays post IP as described in the Materials and Methods (Panels C&D). The effects of the 3 h and 24 h HDACI treatments on cell proliferation, as reflected by percent decrease of live cells relative to untreated cells (panel E), and apoptosis (panel F) were determined by flow cytometry analysis as described in the Materials and Methods.</p><div><div> </div></div><p> </p>

Data from [ PLoS One , 2011 , 6, e17138 ]

<p>Induction of DNA Damage and Bim Is Critical for HDACI-Induced Apoptosis in Pediatric AML Cells. THP-1 cells were treated with the HDACIs at Cmax concentrations for 3 (panel A) and 24 h (panel B), respectively. Whole cell lysates were extracted and subjected to Western blots probed by anti-p21, -c-Myc, -cH2AX, -Bim, or -b-actin antibody.</p><div><div> </div></div><p> </p>

Data from [ PLoS One , 2011 , 6, e17138 ]

<p>Cell death induction by LBH589 as a single agent was detected in control or MTDH knockdown Hec50co cells. After 3 days, cell death was determined by the WST-1 method.</p>

Data from [ PLoS One , 2011 , 6, e20920 ]

Sellecks Panobinostat (LBH589) Has Been Cited by 434 Publications

Proteogenomic characterization of non-functional pancreatic neuroendocrine tumors unravels clinically relevant subgroups [ Cancer Cell, 2025, 43(4):776-796.e14] PubMed: 40185092
Molecular mechanisms of unique therapeutic potential of CUDC-907 for MEF2D fusion-driven BCP-ALL [ Signal Transduct Target Ther, 2025, 10(1):230] PubMed: 40695793
Blood and tissue HIV-1 reservoirs display plasticity and lack of compartmentalization in virally suppressed people [ Nat Commun, 2025, 16(1):2173] PubMed: 40038305
Intratumor heterogeneity of EGFR expression mediates targeted therapy resistance and formation of drug tolerant microenvironment [ Nat Commun, 2025, 16(1):28] PubMed: 39747003
Gut microbial metabolite 4-hydroxybenzeneacetic acid drives colorectal cancer progression via accumulation of immunosuppressive PMN-MDSCs [ J Clin Invest, 2025, 135(11)e181243] PubMed: 40179015
Untying Surface Chemistry and Emulsion Stability to Construct Multifunctional Pickering Emulsion SERS Sensors for Pretreatment-Free Quantitative Analysis in Bio-Media [ Adv Sci (Weinh), 2025, 12(28):e2505714] PubMed: 40364671
Spatial covariance reveals isothiocyanate natural products adjust redox stress to restore function in alpha-1-antitrypsin deficiency [ Cell Rep Med, 2025, 6(1):101917] PubMed: 39809267
A patient-derived T cell lymphoma biorepository uncovers pathogenetic mechanisms and host-related therapeutic vulnerabilities [ Cell Rep Med, 2025, S2666-3791(25)00102-8] PubMed: 40147445
B cell receptor silencing reveals origin and dependencies of high-grade B cell lymphomas with MYC and BCL2 rearrangements [ Blood Cancer Discov, 2025, 10.1158/2643-3230.BCD-25-0099] PubMed: 40402557
Dual targeting of CDK6 and LSD1 is synergistic and overcomes differentiation blockade in AML [ EMBO Mol Med, 2025, 10.1038/s44321-025-00296-2] PubMed: 40883610

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SHIPPING AND STORAGE
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