title: Glucose uptake activity in murine red blood cells infected with Babesia microti and Babesia rodhaini.
abstract: The glucose uptake activity in Babesia rodhaini and B. microti - infected red blood cell (IRBC) was investigated in mice using 2-deoxy-D-glucose (2DOG) and L-glucose (L-Glc), a non-metabolizable analogue of D-glucose and non-incorporative glucose to non-infected RBC (NRBC), respectively. The uptake activities of both DOG and L-Glc were higher in IRBCs than those in NRBC. The concentration dependent uptake of 2DOG and L-Glc in both IRBC revealed a linear curve, indicating non-transporter mediated uptake. In addition, B. microti IRBC showed higher 2DOG uptake than B. rodhaini IRBC, whereas no difference was observed in L-Glc uptake. These results indicated that some new glucose uptake system, at least two systems, developed in both IRBC. The new systems were sodium independent, non-competitive to L-Glc, and sensitive to temperature. One of two systems had no kinetical difference between B. rodhaini and B. microti IRBC, however another one might have higher uptake activity in B. microti IRBC compared to that in B. rodhaini IRBC.
authors.affiliation: Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Ohmori
authors.forename: Keishi
authors.initials: K
authors.lastname: Adachi
authors.forename: Yoshimitsu
authors.initials: Y
authors.lastname: Fukuda
authors.forename: Satoshi
authors.initials: S
authors.lastname: Tamahara
authors.forename: Naoaki
authors.initials: N
authors.lastname: Matsuki
authors.forename: Kenichiro
authors.initials: K
authors.lastname: Ono
mesh_terms: D000818:Animals; D041001:Babesia microti; D004912:Erythrocytes / Q000378:metabolism* / Q000469:parasitology; D005947:Glucose / Q000493:pharmacokinetics*; D007536:Isomerism; D007700:Kinetics; D051379:Mice / Q000378:metabolism* / Q000469:parasitology; D012964:Sodium / Q000378:metabolism; D013696:Temperature
chemical_list: D012964:Sodium; D005947:Glucose