ML216 (Synonyms: CID49852229) |
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Katalog-Nr.GC12786
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ML216 (CID-49852229) ist ein potenter, selektiver und zellgÄngiger Inhibitor der DNA-Unwinding-AktivitÄt von BLM-Helikase mit IC50-Werten von 2,98 μM und 0,97 μM fÜr BLM in voller LÄnge bzw. BLM636-1298. ML216 hemmt die ssDNA-abhÄngige ATPase-AktivitÄt von BLM mit einem Ki von 1,76 μM. Antitumor-AktivitÄt.
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 1430213-30-1
Sample solution is provided at 25 µL, 10mM.
ML216 is a potent, selective, and cell-permeable inhibitor of Bloom syndrome protein (BLM) helicase with IC50 values of 2.98μM for full-length BLM and 0.97μM for BLM636-1298[1]. ML216 competitively interferes with BLM binding to deoxyribonucleic acid (DNA), inhibits BLM-dependent DNA unwinding and single-stranded DNA (ssDNA)-dependent adenosine triphosphatase (ATPase) activity, and perturbs homologous recombination (HR) repair and chromosome stability[1,2]. ML216 is used in research on DNA-damage repair, replication stress, chromosome stability, cellular senescence, tumor-cell sensitization to DNA-damaging agents, and xenograft responses[1,3,4,5,6,7].
In vitro, ML216 (12.5μM and 50μM; 24h, 48h, and 72h) concentration- and time-dependently reduced the proliferation of BLM-complemented PSNF5 fibroblasts while exerting minimal effects on BLM-deficient PSNG13 fibroblasts[1]. ML216 (50μM; 36h) increased sister chromatid exchange (SCE) frequency in PSNF5 cells without significantly changing SCE frequency in PSNG13 cells[2]. ML216 (10μM) combined with cisplatin (CDDP; 1μM; 48h) reduced PC3 prostate cancer cell proliferation, increased phosphorylated histone H2AX (γH2AX) foci and cleaved caspase-3, activated checkpoint kinase 1 (Chk1) and checkpoint kinase 2 (Chk2), and increased apoptosis[3]. ML216 (10μM; 24h) with 8Gy irradiation reduced RAD51 recombinase (RAD51) foci, increased phosphorylated DNA-dependent protein kinase catalytic subunit (pDNA-PKcs), and delayed DNA double-strand break (DSB) repair in H460, H1299, and A549 non-small cell lung cancer (NSCLC) cells[4]. ML216 (0.78125μM, 1.5625μM, 3.125μM, 6.25μM, 12.5μM, and 25μM) combined with melphalan (0.78125μM, 1.5625μM, 3.125μM, 6.25μM, 12.5μM, 25μM, and 50μM; 4 days) reduced proliferation and increased apoptosis and DNA damage in XG19, XG2, and XG1 multiple myeloma cells[5]. ML216 (50μM) combined with etoposide (100μM; 24h) strengthened deleted in breast cancer 1 (DBC1)-BLM interaction, preserved cellular BLM, and reduced p21 induction in HEK293T cells[6]. ML216 (5μM) combined with olaparib (40μM; 48h) reduced PC3 cell viability, proliferation, clonogenic growth, migration, and invasion[7].
In vivo, ML216 (1mg/kg; intraperitoneal injection twice weekly for 5 weeks) reduced pulmonary senescence and fibrosis and improved pulmonary function in 22-month-old mice[6]. ML216 (15mg/kg) combined with olaparib (30mg/kg; intraperitoneal injection three times weekly for 3 weeks) reduced tumor volume, tumor weight, and Ki-67 expression in male BALB/c nude mice bearing PC3 xenografts[7].
References:[1] Nguyen GH, Dexheimer TS, Rosenthal AS, Chu WK, Singh DK, Mosedale G, et al. A small molecule inhibitor of the BLM helicase modulates chromosome stability in human cells. Chem Biol. 2013;20(1):55-62. doi:10.1016/j.chembiol.2012.10.016.
[2] Rosenthal AS, Dexheimer TS, Gileadi O, Nguyen GH, Chu WK, Hickson ID, et al. Synthesis and SAR studies of 5-(pyridin-4-yl)-1,3,4-thiadiazol-2-amine derivatives as potent inhibitors of Bloom helicase. Bioorg Med Chem Lett. 2013;23(20):5660-5666. doi:10.1016/j.bmcl.2013.08.025.
[3] Ma XY, Zhao JF, Ruan Y, Zhang WM, Xu HQ. ML216-induced BLM helicase inhibition sensitizes PCa cells to the DNA-crosslinking agent cisplatin. Molecules. 2022;27(24):8790. doi:10.3390/molecules27248790.
[4] Kong Y, Xu C, Sun X, Sun H, Zhao X, He N, et al. BLM helicase inhibition synergizes with PARP inhibition to improve the radiosensitivity of olaparib-resistant non-small cell lung cancer cells by inhibiting homologous recombination repair. Cancer Biol Med. 2022;19(8):1150-1171. doi:10.20892/j.issn.2095-3941.2021.0178.
[5] Ovejero S, Viziteu E, Dutrieux L, Devin J, Lin YL, Alaterre E, et al. The BLM helicase is a new therapeutic target in multiple myeloma involved in replication stress survival and drug resistance. Front Immunol. 2022;13:983181. doi:10.3389/fimmu.2022.983181.
[6] Cui F, Han X, Zhang X, Wang S, Liang N, Tan Q, et al. ML216 prevents DNA damage-induced senescence by modulating DBC1-BLM interaction. Cells. 2023;12(1):145. doi:10.3390/cells12010145.
[7] Huang M, Chen L, Guo Y, Ruan Y, Xu H. PARP1 negatively regulates transcription of BLM through its interaction with HSP90AB1 in prostate cancer. J Transl Med. 2023;21(1):445. doi:10.1186/s12967-023-04288-z.
| Cell experiment [1]: | |
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Cell lines |
Bloom syndrome protein (BLM)-complemented PSNF5 and BLM-deficient PSNG13 human fibroblasts |
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Preparation Method |
PSNF5 and PSNG13 human fibroblasts were cultured with different ML216 concentrations, and cell proliferation was quantified at each time point. In a separate arm, cells were labeled with bromodeoxyuridine, exposed to ML216, and prepared as metaphase chromosome spreads for microscopic quantification of sister chromatid exchange frequency. |
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Reaction Conditions |
12.5μM and 50μM; 24h, 48h, and 72h |
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Applications |
ML216 concentration- and time-dependently reduced proliferation in BLM-complemented PSNF5 cells, exerted minimal effects on BLM-deficient PSNG13 cells, and increased sister chromatid exchange frequency in PSNF5 cells. |
| Animal experiment [2]: | |
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Animal models |
PC3 prostate cancer xenograft model in male BALB/c nude mice |
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Preparation Method |
PC3 cells were implanted subcutaneously into male BALB/c nude mice to establish xenografts. Mice were randomized to ML216, olaparib, the combination, or vehicle control. Tumor volume was measured every 4 days, and tumor weight and Ki-67 expression were assessed at the study endpoint. |
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Dosage form |
15mg/kg; intraperitoneal injection three times weekly for 3 weeks |
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Applications |
ML216 combined with olaparib reduced PC3 xenograft tumor volume, tumor weight, and Ki-67 expression and inhibited tumor growth more strongly than either monotherapy. |
| References: [1] Nguyen GH, Dexheimer TS, Rosenthal AS, Chu WK, Singh DK, Mosedale G, et al. A small molecule inhibitor of the BLM helicase modulates chromosome stability in human cells. Chem Biol. 2013;20(1):55-62. doi:10.1016/j.chembiol.2012.10.016. [2] Huang M, Chen L, Guo Y, Ruan Y, Xu H. PARP1 negatively regulates transcription of BLM through its interaction with HSP90AB1 in prostate cancer. J Transl Med. 2023;21(1):445. doi:10.1186/s12967-023-04288-z. | |
| Cas No. | 1430213-30-1 | SDF | |
| Überlieferungen | CID49852229 | ||
| Chemical Name | 1-(4-fluoro-3-(trifluoromethyl)phenyl)-3-(5-(pyridin-4-yl)-1,3,4-thiadiazol-2-yl)urea | ||
| Canonical SMILES | FC(C(C(F)(F)F)=C1)=CC=C1NC(NC2=NN=C(C3=CC=NC=C3)S2)=O | ||
| Formula | C15H9F4N5OS | M.Wt | 383.32 |
| Löslichkeit | 25mg/ml in DMSO with gentle warming | Storage | Desiccate at -20°C |
| General tips | Please select the appropriate solvent to prepare the stock solution according to the
solubility of the product in different solvents; once the solution is prepared, please store it in
separate packages to avoid product failure caused by repeated freezing and thawing.Storage method
and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored
at -20°C, please use it within 1 month. To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time. |
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| Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. | ||
| Prepare stock solution | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.6088 mL | 13.0439 mL | 26.0879 mL |
| 5 mM | 521.8 μL | 2.6088 mL | 5.2176 mL |
| 10 mM | 260.9 μL | 1.3044 mL | 2.6088 mL |
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Quality Control & SDS
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- Purity: >99.50% Appearance: A solid
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Average Rating: 5 (Based on Reviews and 20 reference(s) in Google Scholar.)















