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SML3146

Sigma-Aldrich

RHPS4 methosulfate

≥98% (HPLC)

Synonyme(s) :

3,11-Difluoro-6,8,13-trimethyl-8H-quino[4,3,2,kl]acridinium methosulfate, NSC 714187, Quino[4,3,2-kl]acridinium, 3,11-difluorohydro-6,8,13-trimethyl-, methyl sulfate (1:1)

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About This Item

Formule empirique (notation de Hill):
C22H17F2N2 · CH3O4S
Numéro CAS:
390362-78-4
Poids moléculaire :
458.48
Numéro MDL:
MFCD30182275
Code UNSPSC :
12352200
Nomenclature NACRES :
NA.77

Niveau de qualité

100

Pureté

≥98% (HPLC)

Forme

powder

Conditions de stockage

protect from light

Couleur

faint brown to very dark brown-red

Solubilité

DMSO: 2 mg/mL, clear

Température de stockage

2-8°C

Chaîne SMILES 

FC1=CC=C(N(C)C2=C3C4=[N+](C)C5=C(C=C(F)C=C5)C3=CC(C)=C2)C4=C1.[O-]S(=O)(OC)=O

Actions biochimiques/physiologiques

RHPS4 is a pentacyclic acridine compound that exerts telomerase inhibitory activity (IC50 = 330 nM by TRAP assay) via targeting telomeric DNA G-quadruplex (G4) structure, causing alteration in the telomeric architecture and telomere dysfunction. RHPS4 induces cell cycle arrest and growth inhibition in cancer cultures in vitro(% GI/culture/time = 93%/21NT/15 days, 67%/A431/12 days, 91%/GM847/15 days; 200 nM replenish twice weekly) and exhibits anti-tumor efficacy in mice in vivo (10-15 mg/kg/d iv.). RHPS4 is also reproted to target mitochondrial DNA (mtDNA) G4 structures, perturbing mitochondrial genome replication, transcription processivity, and respiratory function.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

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Carlo Leonetti et al.
Molecular pharmacology, 66(5), 1138-1146 (2004-08-12)
This study had two goals: 1) to evaluate the biological effect of the novel pentacyclic acridine 3,11-difluoro-6,8,13-trimethyl-8H-quino[4,3,2-kl]acridinium methosulfate (RHPS4) on human melanoma lines possessing long telomeres, and 2) to elucidate the relationship between G-quadruplex-based telomerase inhibitor-induced cellular effects and telomere
Erica Salvati et al.
The Journal of clinical investigation, 117(11), 3236-3247 (2007-10-13)
Functional telomeres are required for the replicability of cancer cells. The G-rich strand of telomeric DNA can fold into a 4-stranded structure known as the G-quadruplex (G4), whose stabilization alters telomere function limiting cancer cell growth. Therefore, the G4 ligand
Carlo Leonetti et al.
Clinical cancer research : an official journal of the American Association for Cancer Research, 14(22), 7284-7291 (2008-11-18)
The formation of G-quadruplex structures at telomeric DNA sequences blocks telomerase activity, offering an original strategy to design and develop new antitumor agents. The pentacyclic acridinium salt RHPS4 is one of the most effective and selective G4 ligands able to
Annamaria Biroccio et al.
Clinical cancer research : an official journal of the American Association for Cancer Research, 17(8), 2227-2236 (2011-03-01)
We previously reported that the G-quadruplex (G4) ligand RHPS4 potentiates the antitumor activity of camptothecins both in vitro and in tumor xenografts. The present study aims at investigating the mechanisms involved in this specific drug interaction. Combination index test was
Francesco Berardinelli et al.
The FEBS journal, 285(7), 1226-1236 (2018-02-28)
The pentacyclic acridine RHPS4 is a highly potent and specific G-quadruplex (G4) ligand, which binds and stabilizes telomeric G4 leading to the block of the replication forks at telomeres and consequently to telomere dysfunctionalization. In turn, the cell recognizes unprotected
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