title: Asymmetrically substituted cationic indole- and fluorene porphyrins inhibit tumor proliferation in small intestinal neuroendocrine tumors and medullary thyroid carcinomas.
abstract: In this study we demonstrate anticancer activity of novel fully water soluble cationic porphyrins. The two cationic porphyrins 5,10,15-tris(N-methylpyridinium-4-yl)-20-[1-phenyl-4-(3-N-phenylsulfonylindolyl)]-21H,23H-porphyrin chloride (TMPy(3)PhenIndolprot(1)P-Cl(3)) and 5-{5-[2-(9,9-Dimethyl)fluorenyl]-N-methylpyridinium-3-yl}-10,15,20-tris(N-methyl-pyridinium-4-yl)-21H,23H-porphyrin chloride (TMPy(3)PyFluorenyl(1)P-Cl(4)) were prepared and their antiproliferative effects were studied in two human tumor cell lines and a normal human fibroblast cell line. Effects of the novel porphyrin compounds were evaluated in the small intestinal neuroendocrine tumor cell line KRJ-I, the medullary thyroid carcinoma cell line MTC-SK and the normal human fibroblast cell line HF-SAR by cell counting, cell proliferation assays and cell cytotoxicity analyses. TMPy(3)PhenIndolprot(1)P-Cl(3) and TMPy(3)PyFluorenyl(1)P-Cl(4) showed antiproliferative effects in the tumor cell lines MTC-SK and KRJ-I; cell viability was decreased and cytotoxic effects were quantified, while no significant alterations of the human fibroblasts were noted. With the advantage of full water solubility and antiproliferative effects in tumor cell lines, the novel porphyrin compounds TMPy(3)PhenIndolprot(1)P-Cl(3) and TMPy(3)PyFluorenyl(1)P-Cl(4) could be a new therapeutic option in anticancer treatment.
authors: Institute of Organic Chemistry, Johannes Kepler Universität Linz, A-4040 Linz, Austria.
authors: Martin
authors: M
authors: Haeubl
authors: Susanne
authors: S
authors: Schuerz
authors: Bernhard
authors: B
authors: Svejda
authors: Lorenz Michael
authors: LM
authors: Reith
authors: Bernadette
authors: B
authors: Gruber
authors: Roswitha
authors: R
authors: Pfragner
authors: Wolfgang
authors: W
authors: Schoefberger
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000138:chemical synthesis / Q000737:chemistry / Q000378:metabolism / Q000494:pharmacology; D001483:Base Sequence; D002417:Cattle; D045744:Cell Line, Tumor; D049109:Cell Proliferation / Q000187:drug effects; D004247:DNA / Q000235:genetics / Q000378:metabolism; D005449:Fluorenes / Q000737:chemistry*; D006801:Humans; D007211:Indoles / Q000737:chemistry*; D018358:Neuroendocrine Tumors / Q000188:drug therapy / Q000473:pathology*; D011166:Porphyrins / Q000138:chemical synthesis / Q000737:chemistry* / Q000378:metabolism / Q000494:pharmacology*; D012995:Solubility; D013964:Thyroid Neoplasms / Q000188:drug therapy / Q000473:pathology*; D014867:Water / Q000737:chemistry
chemical_list: D000970:Antineoplastic Agents; D005449:Fluorenes; D007211:Indoles; D011166:Porphyrins; D014867:Water; C041509:fluorene; D004247:DNA