ML-346 |
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رقم الكتالوجGC18170
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ML-346 هو منشط لتعبير Hsp70 ونشاط HSF-1 ، مع EC50 من 4.6 ميكرومتر لـ Hsp70. يستعيد ML-346 طي البروتين في نماذج الأمراض التوافقية ، دون سمية خلوية كبيرة أو نقص في الخصوصية. يحث ML-346 على زيادات محددة في الجينات ومؤثرات البروتين لاستجابة الصدمة الحرارية (HSR) ، بما في ذلك المرافقون مثل Hsp70 و Hsp40 و Hsp27.
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 100872-83-1
Sample solution is provided at 25 µL, 10mM.
ML-346 is an activator of the heat shock response that induces the expression of the heat shock protein HSP70, with an EC50 value of 4.6µM[1]. ML-346 molecule covalently modified the cysteine (Cys) at position 208 of the active site of the housekeeping sorting enzyme A (SrtA) of Staphylococcus aureus, significantly reducing the virulence phenotype of Staphylococcus aureus[2]. ML-346 has been widely used in transplantation tumor models to promote tumor cell apoptosis and reduce tumor growth[3].
In vitro, ML-346 treatment (10µM) for 24 hours significantly inhibited the viability of MDA-MB-435 cells and reduced the activities of CDK7 and CDK9[4]. Treatment with 10µM ML-346 for 24 hours significantly inhibited the LC3 I/II conversion in A549 cells, and promoted the accumulation of p62 as well as a significant increase in the phosphorylation level of mTOR at the Ser2448 site[5]. 15µM of ML-346 pretreatment for 1 hour significantly inhibited the accumulation of sphingomyelin induced by V8 in Jurkat cells and the co-localization with Lysotracker Red[6]. 10µM of ML-346 pretreatment for 4 hours alleviated the mitochondrial damage and cell apoptosis induced by the combined action of Fumonisin B1 (FB1) and ochratoxin A (OTA) in pK-15 cells[7].
References:
[1] Calamini B, Silva M C, Madoux F, et al. ML346: a novel modulator of proteostasis for protein conformational diseases[M]//Probe Reports from the NIH Molecular Libraries Program [Internet]. National Center for Biotechnology Information (US), 2013.
[2] Guan X N, Zhang T, Yang T, et al. Covalent sortase A inhibitor ML346 prevents Staphylococcus aureus infection of Galleria mellonella[J]. RSC Medicinal Chemistry, 2022, 13(2): 138-149.
[3] Chen W, Wang Z, Ji J, et al. The regulatory mechanism of HSP70 in endoplasmic reticulum stress in pepsin-treated laryngeal epithelium cells and laryngeal cancer cells[J]. Aging (Albany NY), 2022, 14(20): 8486.
[4] Chiang S K, Chang W C, Chen S E, et al. CDK7/CDK9 mediates transcriptional activation to prime paraptosis in cancer cells[J]. Cell & Bioscience, 2024, 14(1): 78.
[5] Alhasan B, Gladova Y A, Sverchinsky D V, et al. Hsp70 negatively regulates autophagy via governing AMPK activation, and dual Hsp70-autophagy inhibition induces synergetic cell death in NSCLC Cells[J]. International Journal of Molecular Sciences, 2024, 25(16): 9090.
[6] Qing Y, Guo Y, Zhao Q, et al. Targeting lysosomal HSP70 induces acid sphingomyelinase‐mediated disturbance of lipid metabolism and leads to cell death in T cell malignancies[J]. Clinical and translational medicine, 2023, 13(3): e1229.
[7] Li H, He W, Yue D, et al. Low doses of fumonisin B1 exacerbate ochratoxin A-induced renal injury in mice and the protective roles of heat shock protein 70[J]. Chemico-Biological Interactions, 2023, 369: 110240.
| Cell experiment [1]: | |
Cell lines | MDA-MB-435 cells |
Preparation Method | MDA-MB-435 cells were cultured in DMEM/F12 medium supplemented with 10% fetal bovine serum, 100U/ml penicillin, and 100μg/ml streptomycin at 37°C with 5% CO2 and 95% saturated atmospheric humidity. Cells were seeded into 96-well microplates at a density of 5×103 cells/ml for 24h. Various concentrations of ML-346 (0, 2.5, 5, and 10µM) were added to each well. After 24h of incubation, cell viability was analyzed. |
Reaction Conditions | 0, 2.5, 5, and 10µM; 24h |
Applications | ML-346 treatment significantly inhibited the cell viability of MDA-MB-435 cells in a dose-dependent manner. |
References: | |
| Cas No. | 100872-83-1 | SDF | |
| Chemical Name | 5-[3-(4-methoxyphenyl)-2-propen-1-ylidene]-2,4,6(1H,3H,5H)-pyrimidinetrione | ||
| Canonical SMILES | O=C1NC(/C(C(N1)=O)=C/C=C/C2=CC=C(OC)C=C2)=O | ||
| Formula | C14H12N2O4 | M.Wt | 272.3 |
| الذوبان | 0.5mg/mL in ethanol, 30mg/mL in DMSO, or in DMF | Storage | Store 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 | 3.6724 mL | 18.3621 mL | 36.7242 mL |
| 5 mM | 734.5 μL | 3.6724 mL | 7.3448 mL |
| 10 mM | 367.2 μL | 1.8362 mL | 3.6724 mL |
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Quality Control & SDS
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- Purity: >98.00% Appearance: A solid
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Average Rating: 5 (Based on Reviews and 21 reference(s) in Google Scholar.)















