10-Phenylbutyryl-substituted anthracenones as inhibitors of keratinocyte growth and LTB(4) biosynthesis.
A recent observation that phenylbutyryl anthracenone 2, an analogue of the antipsoriatic anthralin, is a potent inhibitor of leukotriene B(4) (LTB(4)) biosynthesis has prompted a search of other anthracenones with improved antiproliferative activity. In that direction, a limited number of analogues related to 2 have been prepared and evaluated in the HaCaT keratinocytes proliferation and in the polymorphonuclear leukocyte LTB(4) assay. The 4-methoxy analogue 2a and the side chain methylated 2l retain the full inhibitory activity of 1 against LTB(4) biosynthesis while their antiproliferative activity is markedly enhanced and comparable to that of the antipsoriatic anthralin. In contrast to anthralin, cytotoxic effects against cell membranes are strongly reduced as documented by the LDH activity released from cytoplasm of keratinocytes.
Müller
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K
Westfälische Wilhelms-Universität Münster, Institut für Pharmazeutische Chemie, Hittorfstrasse 58-62, D-48149, Münster, Germany. kmuller@uni-muenster.de
Breu
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K
Reindl
H
H
D000287:Administration, Topical; D000818:Animals; D000873:Anthracenes / Q000138:chemical synthesis / Q000494:pharmacology*; D000875:Anthralin / Q000031:analogs & derivatives; D000893:Anti-Inflammatory Agents / Q000494:pharmacology*; D002417:Cattle; D002455:Cell Division / Q000187:drug effects; D002460:Cell Line / Q000187:drug effects / Q000201:enzymology; D005609:Free Radicals / Q000378:metabolism; D006801:Humans; D015603:Keratinocytes / Q000166:cytology* / Q000187:drug effects; D007770:L-Lactate Dehydrogenase / Q000187:drug effects; D007975:Leukotriene B4 / Q000037:antagonists & inhibitors* / Q000096:biosynthesis; D009504:Neutrophils / Q000378:metabolism; D013329:Structure-Activity Relationship
D000873:Anthracenes; D000893:Anti-Inflammatory Agents; D005609:Free Radicals; D007975:Leukotriene B4; D007770:L-Lactate Dehydrogenase; D000875:Anthralin