PMID- 28424964 OWN - NLM STAT- MEDLINE DCOM- 20170613 LR - 20201209 IS - 1432-0843 (Electronic) IS - 0344-5704 (Linking) VI - 79 IP - 6 DP - 2017 Jun TI - Pharmacodynamic effects in the cerebrospinal fluid of rats after intravenous administration of different asparaginase formulations. PG - 1267-1271 LID - 10.1007/s00280-017-3307-8 [doi] AB - PURPOSE: Asparaginase (ASNase) is used to treat various hematological malignancies for its capacity to deplete asparagine (ASN) in serum and cerebrospinal fluid (CSF). Since the biological mechanisms underlying CSF asparagine depletion in humans are not yet fully elucidated, this study compared, for the first time, the pharmacological properties of three clinically used ASNase formulations in a rodent model. METHODS: Male Wistar rats were treated with E.coli-ASNase, PEG-ASNase, or ERW-ASNase at different doses. Serum and CSF amino-acid levels and ASNase activities were evaluated at 1 and 24 h after the intravenous administration of different ASNase doses. RESULTS: All the ASNase formulations showed higher activities in serum after 1 h than 24 h and completely deplete ASN. Mean ASNase activity in the CSF at 1 h was higher with ERW-ASNase compared to PEG-ASNase (36 +/- 29 vs 8 +/- 7 U/L, p < 0.037) and similar to E.coli-ASNase (21 +/- 9 U/L, ns). ERW-ASNase and E.coli-ASNase at the highest doses were able to deplete ASN in the CSF after 1 h. This effect was transient and not evident at 24 h after treatment. CONCLUSIONS: Together with the ASN depletion in serum and CSF, a never before demonstrated transient penetration of ASNases into the CSF, more evident for non-pegylated formulations, was detected when the ASNases were administered at high dose. FAU - Ballerini, Andrea AU - Ballerini A AD - Clinical Cancer Pharmacology Unit, Department of Oncology, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Via La Masa 19, 20156, Milan, Italy. AD - Department of Oncology and Onco-Hematology, University of Milan, Milan, Italy. FAU - Moro, Federico AU - Moro F AD - Experimental Psychopharmacology, Department of Neuroscience, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy. FAU - Nerini, Ilaria Fuso AU - Nerini IF AD - Clinical Cancer Pharmacology Unit, Department of Oncology, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Via La Masa 19, 20156, Milan, Italy. FAU - Marzo, Claudio Marcello AU - Marzo CM AD - Experimental Psychopharmacology, Department of Neuroscience, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy. FAU - Di Clemente, Angelo AU - Di Clemente A AD - Experimental Psychopharmacology, Department of Neuroscience, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy. FAU - Ferrari, Mariella AU - Ferrari M AD - Clinical Cancer Pharmacology Unit, Department of Oncology, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Via La Masa 19, 20156, Milan, Italy. FAU - D'Incalci, Maurizio AU - D'Incalci M AD - Clinical Cancer Pharmacology Unit, Department of Oncology, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Via La Masa 19, 20156, Milan, Italy. FAU - Biondi, Andrea AU - Biondi A AD - Pediatric Hematology-Oncology Unit, Department of Pediatrics, University of Milano-Bicocca, MBBM Foundation, ASST Monza, Monza, Italy. FAU - Colombini, Antonella AU - Colombini A AD - Pediatric Hematology-Oncology Unit, Department of Pediatrics, University of Milano-Bicocca, MBBM Foundation, ASST Monza, Monza, Italy. FAU - Conter, Valentino AU - Conter V AD - Pediatric Hematology-Oncology Unit, Department of Pediatrics, University of Milano-Bicocca, MBBM Foundation, ASST Monza, Monza, Italy. FAU - Porcu, Luca AU - Porcu L AD - Clinical Cancer Pharmacology Unit, Department of Oncology, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Via La Masa 19, 20156, Milan, Italy. FAU - Cervo, Luigi AU - Cervo L AD - Experimental Psychopharmacology, Department of Neuroscience, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy. FAU - Rizzari, Carmelo AU - Rizzari C AD - Pediatric Hematology-Oncology Unit, Department of Pediatrics, University of Milano-Bicocca, MBBM Foundation, ASST Monza, Monza, Italy. FAU - Zucchetti, Massimo AU - Zucchetti M AUID- ORCID: 0000-0002-5427-052X AD - Clinical Cancer Pharmacology Unit, Department of Oncology, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Via La Masa 19, 20156, Milan, Italy. massimo.zucchetti@marionegri.it. LA - eng PT - Journal Article DEP - 20170419 PL - Germany TA - Cancer Chemother Pharmacol JT - Cancer chemotherapy and pharmacology JID - 7806519 RN - 0 (Antineoplastic Agents) RN - 3WJQ0SDW1A (Polyethylene Glycols) RN - 7D96IR0PPM (pegaspargase) RN - EC 3.5.1.1 (Asparaginase) SB - IM MH - Administration, Intravenous MH - Animals MH - Antineoplastic Agents/administration & dosage/*cerebrospinal fluid/*pharmacokinetics MH - Asparaginase/administration & dosage/*cerebrospinal fluid/*pharmacokinetics MH - Blood-Brain Barrier/metabolism MH - Dickeya chrysanthemi/enzymology MH - Drug Compounding MH - Escherichia coli/enzymology MH - Half-Life MH - Male MH - Molecular Weight MH - Polyethylene Glycols/chemistry MH - Rats MH - Rats, Wistar OTO - NOTNLM OT - Asparaginase activity OT - Asparagine depletion OT - Blood-brain barrier OT - Cerebrospinal fluid OT - Pharmacology EDAT- 2017/04/21 06:00 MHDA- 2017/06/14 06:00 CRDT- 2017/04/21 06:00 PHST- 2017/02/14 00:00 [received] PHST- 2017/04/11 00:00 [accepted] PHST- 2017/04/21 06:00 [pubmed] PHST- 2017/06/14 06:00 [medline] PHST- 2017/04/21 06:00 [entrez] AID - 10.1007/s00280-017-3307-8 [pii] AID - 10.1007/s00280-017-3307-8 [doi] PST - ppublish SO - Cancer Chemother Pharmacol. 2017 Jun;79(6):1267-1271. doi: 10.1007/s00280-017-3307-8. Epub 2017 Apr 19.