title: The effects of cryopreservation on protein synthesis and membrane transport in isolated rat liver mitochondria.
abstract: Protein synthesizing activity and membrane transport were examined in fresh and cryopreserved isolated rat liver mitochondria. In the presence of 0.6, 1.2, and 1.8 M final concentrations of dimethyl sulfoxide (Me2SO), both metabolic parameters were considerably inhibited in the fresh samples and even more inhibited in the cryopreserved specimens. However, simple exposure to this penetrating cryoprotectant, followed by its subsequent removal by washing, did not seem to affect significantly the examined functions. When different freeze-thaw regimes were investigated, it was observed that optimal recovery of protein synthesis and membrane transport functions were obtained when fast freezing took place in the absence of Me2SO.
authors.affiliation: Afdeling Biochemie, Faculteit Geneeskunde, Katholieke Universiteit te Leuven, Belgium.
authors.forename: P
authors.initials: P
authors.lastname: De Loecker
authors.forename: B J
authors.initials: BJ
authors.lastname: Fuller
authors.forename: W
authors.initials: W
authors.lastname: De Loecker
mesh_terms: D000255:Adenosine Triphosphate / Q000096:biosynthesis; D000596:Amino Acids / Q000378:metabolism; D000818:Animals; D001693:Biological Transport, Active / Q000187:drug effects; D015925:Cryopreservation; D004121:Dimethyl Sulfoxide / Q000494:pharmacology; D066298:In Vitro Techniques; D007425:Intracellular Membranes / Q000378:metabolism; D007532:Isoleucine / Q000378:metabolism; D008297:Male; D008930:Mitochondria, Liver / Q000187:drug effects / Q000378:metabolism; D014176:Protein Biosynthesis; D051381:Rats; D011919:Rats, Inbred Strains
chemical_list: D000596:Amino Acids; D007532:Isoleucine; D000255:Adenosine Triphosphate; D004121:Dimethyl Sulfoxide