RAMB4, also known as PTP1B-IN-9, is a ubiquitin-proteasome system (UPS)-stressor. RAMB4 selectively reduces the viability of cervical cancer cells independently of HPV genotype via blockade of proteasomal degradation. RAMB4 treatment triggers a Ubiquitin-Proteasome-System (UPS)-stress response without affecting 20S proteasome catalytic activities.
CAS Number: 145888-79-5
Molecular Weight: 413.12
Chemical Name: (3E,5E)-3,5-Bis(3,4-dichlorobenzylidene)piperidin-4-one
Appearance: Solid Power.
Purity: ≥98% (or refer to the Certificate of Analysis)
Solubility: Soluble in DMSO
Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis
Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.
Shelf Life: ≥12 months if stored properly.
Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.
Drug Formulation: To be determined.
HS Tariff Code: 382200
How to use
PTP1B-IN-9 (0-30 µM; 48 hours) treatment produces a dose dependent reduction in the viability of HPV16-positive SiHa and Caski cells and HPV-39-positive ME180 cervical cancer cell lines respectively. PTP1B-IN-9 reduces the cell viability of exponentially growing HeLa cervical cancer cells in a dose-dependent fashion with an IC50 value of 2 µM.
- Anchoori RK, et al. Stressing the ubiquitin-proteasome system without 20S proteolytic inhibition selectively kills cervical cancer cells.PLoS One. 2011;6(8):e23888.
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