PMID- 11488524 OWN - NLM STAT- MEDLINE DCOM- 20010830 LR - 20190901 IS - 0344-5704 (Print) IS - 0344-5704 (Linking) VI - 48 IP - 1 DP - 2001 Jul TI - Acyl derivatives of demethylpenclomedine, an antitumor-active, non-neurotoxic metabolites of penclomedine. PG - 47-52 AB - PURPOSE: The purpose of this investigation was to compare the antitumor activities of a series of acyl derivatives of 4-demethylpenclomedine (DM-PEN), the major plasma metabolite of penclomedine (PEN) observed to be an active antitumor agent in vivo and non-neurotoxic in a rat model with that of DM-PEN. METHODS: Acyl derivatives were prepared from DM-PEN and evaluated in vivo against human MX-1 breast tumor xenografts implanted subcutaneously (s.c.) or intracerebrally (i.c.). Several derivatives were also evaluated against other human tumor xenografts and murine P388 leukemia cell lines. RESULTS: Several of the acyl derivatives were found to be superior to DM-PEN against MX-1, human ZR-75-1 breast tumor, human U251 CNS tumor and the P388 leukemia parent cell line and lines resistant to cyclophosphamide and carmustine. 4-Demethyl-4-methoxyacetylpenclomedine showed inferior activity to current clinical brain tumor drugs against a glioma cell line, superior activity to temozolomide and procarbazine against the derived mismatch repair-deficient cell line, and superior activity to cyclophosphamide and carmustine but inferior activity to temozolomide against two ependymoma cell lines, all of which were implanted s.c. CONCLUSION: Proposed mechanisms of activation and action of DM-PEN and the acyl derivatives support the potential clinical superiority of the acyl derivatives. FAU - Struck, R F AU - Struck RF AD - Southern Research Institute, Birmingham, AL 35255-5305, USA. struck@sri.org FAU - Tiwari, A AU - Tiwari A FAU - Friedman, H S AU - Friedman HS FAU - Keir, S AU - Keir S FAU - Morgan, L R AU - Morgan LR FAU - Waud, W R AU - Waud WR LA - eng GR - P01 CA34200/CA/NCI NIH HHS/United States GR - R44 CA85021/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - Germany TA - Cancer Chemother Pharmacol JT - Cancer chemotherapy and pharmacology JID - 7806519 RN - 0 (Antineoplastic Agents) RN - 0 (Picolines) RN - 66Q80IL7CW (penclomedine) SB - IM MH - Animals MH - Antineoplastic Agents/*pharmacology/toxicity MH - Brain Neoplasms/drug therapy MH - Humans MH - Mice MH - Neoplasm Transplantation MH - Picolines/metabolism/*pharmacology MH - Structure-Activity Relationship MH - Transplantation, Heterologous EDAT- 2001/08/08 10:00 MHDA- 2001/08/31 10:01 CRDT- 2001/08/08 10:00 PHST- 2001/08/08 10:00 [pubmed] PHST- 2001/08/31 10:01 [medline] PHST- 2001/08/08 10:00 [entrez] AID - 10.1007/s002800000255 [doi] PST - ppublish SO - Cancer Chemother Pharmacol. 2001 Jul;48(1):47-52. doi: 10.1007/s002800000255.