RM2
RM2 is a GRPr antagonist. RM2 selectively binds to GRPr, blocks agonist-induced receptor internalization, and inhibits agonist-triggered intracellular calcium mobilization. RM2 can be used in studies related to prostate cancer.
For research use only. We do not sell to patients.
- CAS No.: 1186600-65-6
- Formula: C78H118N20O19
- Molecular Weight:1639.89
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
RM2 binds the GRP receptor on human prostate carcinoma cryostat sections with high affinity, exhibiting an IC50 of 7.7nmol/L[1].
RM2 is a selective ligand for the GRP receptor on human tissue sections, with an IC50 of 9.3 nmol/L and no measurable affinity for NMBr or BB3r subtypes[1].
RM2 (1000 nmol/L; 30 min) acts as a GRP receptor antagonist in HEK-GRPr cells, failing to trigger receptor internalization at 1000 nmol/L but completely inhibiting Bombesin (HY-P0195)-induced receptor internalization at the same concentration[1].
RM2 (1-10 μmol/L; 60 s) acts as a GRP receptor antagonist in PC-3 cells, showing no intrinsic activity on intracellular Ca2+ mobilization at 1 or 10 μmol/L, but inhibiting Bombesin (HY-P0195)-induced Ca2+ mobilization at 10 μmol/L[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Cell Line:HEK293 cells stably expressing HA epitope-tagged human GRPr (HEK-GRPr cells)
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Concentration:1000 nmol/L
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Incubation Time:30 min
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Result:Failed to stimulate GRP receptor internalization.
Prevented bombesin-induced GRP receptor internalization when co-treated with 10 nmol/L Bombesin.
68Ga-RM2 (80 pmol; intravenous injection) exhibits high, GRPr-specific uptake in PC-3 prostate cancer xenografts, with tumour to kidney ratios reaching 6.1 at 80 minutes post-injection[1].
68Ga-RM2 (80 pmol; intravenous injection) achieves specific, GRPr-mediated uptake in androgen-dependent LNCaP prostate cancer xenografts, with tumour to blood ratios reaching 23.4 at 120 minutes post-injection[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 1186600-65-6
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Molecular Weight 1639.89
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Formula C78H118N20O19
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Sequence
DOTA-{2-(4-aminopiperidin-1-yl)acetic acid}-{DPhe}-Gln-Trp-Ala-Val-Gly-His-{Sta}-Leu-NH2
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Sequence Shortening
DOTA-{2-(4-aminopiperidin-1-yl)acetic acid}-{DPhe}-QWAVGH-{Sta}-L-NH2
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Purity & Documentation
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)