Arzneimittelforschung 2003; 53(6): 428-439
DOI: 10.1055/s-0031-1297131
Antibiotics · Antiviral Drugs · Chemotherapeutics · Cytostatics
Editio Cantor Verlag Aulendorf (Germany)

Phenylarsonic Acid Compounds with Broad-Spectrum and Potent Cytotoxic Activity against Human Cancer Cells

Fatih M. Uckun
a   Departments of Oncology, Parker Hughes Cancer Center & Parker Hughes Institute, St. Paul, MN, USA
c   Departments of Drug Discovery Program, Parker Hughes Cancer Center & Parker Hughes Institute, St. Paul, MN, USA
,
Osmond J. D’Cruz
a   Departments of Oncology, Parker Hughes Cancer Center & Parker Hughes Institute, St. Paul, MN, USA
c   Departments of Drug Discovery Program, Parker Hughes Cancer Center & Parker Hughes Institute, St. Paul, MN, USA
,
Xing-Ping Liu
b   Departments of Chemistry, Parker Hughes Cancer Center & Parker Hughes Institute, St. Paul, MN, USA
c   Departments of Drug Discovery Program, Parker Hughes Cancer Center & Parker Hughes Institute, St. Paul, MN, USA
,
Rama Krishna Narla
a   Departments of Oncology, Parker Hughes Cancer Center & Parker Hughes Institute, St. Paul, MN, USA
c   Departments of Drug Discovery Program, Parker Hughes Cancer Center & Parker Hughes Institute, St. Paul, MN, USA
› Author Affiliations
Further Information

Publication History

Publication Date:
25 December 2011 (online)

Summary

The in vitro cytotoxic activity profile of nine novel phenylarsonic acid (CAS 98-05-5, PAA) compounds against 17 human cancer cell lines including (a) ovarian cancer cell lines ES-2, PA-1, CAOV-3, OVCAR-3, (b) testicular cancer cell lines Ntera-2, Tera-2, N2NICP, 833K, and 64CP, (c) multiple myeloma cell lines ARH77, HS-Sultan, RPMI-8226, and U266, and (d) acute lymphoblastic leukemia (ALL) cell lines NALM-6, MOLT-3, ALL-1, and RS4; 11, was determined by the MTT assay. The lead compounds, 2-methylthio-4-[(4’-aminophenylazo)-phenylarsonic acid] pyrimidine (PHI-370) and 2-methylthio-4-(4’-phenylarsonic acid)-aminopyrimidine (PHI-380) caused apoptotic death in all 17 cancer cell lines at low micromolar concentrations, as documented by TUNEL assays and confocal laser scanning microscopy. PHI-380 was also tested and found to be very active against primary tumor cells isolated from surgical biopsy specimens of 14 patients with therapy-refractory non-small cell lung cancer, breast cancer, colon cancer, lymphoma, hepatoblastoma, or Wilm’s tumor as well. Because of their broad-spectrum and potent anticancer activity and ability to induce apoptosis in primary tumor cells from therapy-refractory cancer patients, PAA compounds such as PHI-370 and PHI-380 may provide the basis for effective salvage regimens for patients with recurrent cancer.

Zusammenfassung

Phenylarsensäure-Derivate mit potenter Breitspektrum-Aktivität gegen menschliche Krebszellen

Das zytotoxische Aktivitätsprofil in vitro von 9 neuen Phenylarsensäure (CAS 98-05-5, PAS) Derivaten wurde an folgenden 17 humanen Krebszell-Linien untersucht. Ovarialkrebszell-Linien ES-2, PA-1, CAOV-3, OVCAR-3, der Testikularkrebszell-Linien Ntera-2, Tera-2, N2NICP, 833K, und 64CP, Plasmazytomzelllinien ARH77, HS-Sultan, RPMI-8226, und U266, und akute lymphatische Leukämiezell-Linien NALM-6, MOLT-3, ALL-1, und RS4; 11. The besten Substanzen waren 2-Methylthio-4-(4’-phenylarsensäure] pyrimidin (PHI-370) und 2-Methylthio-4-(4’-phenylarsensäure)aminopyrimidin (PHI-380) führten in jeder der 17 Krebszell-Linien zum apoptotischen Tod, welcher mittels TUNEL-Methode sowie konfokaler Lasermikroskopie dokumentiert wurde. PHI-380 wurde auch gegen Tumorzellen in chirurgischen Biopsiematerialien von 14 Patienten mit behandlungsresistentem Lungenkrebs, Brustkrebs, Kolonkrebs, Lymphom, Hepatoblastom und Wilmstumor getestet und erwies sich als aktiv. Wegen ihrer potenten Breitspektrumaktivität gegen Krebszellen könnten PAS-Derivate wie PHI-370 und PHI-380 eine effektivere Behandlung rezidivierter Krebspatienten ermöglichen.