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4 protocols using novolin r insulin

1

Intraperitoneal Glucose Tolerance Test

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Mice from HFD and LFD feeding studies were fasted for 6 h and weighed prior to an intra-peritoneal administration of dextrose (2 g/kg) or Novolin-R insulin (2 U/kg, Novo-Nordisk, Princeton NJ) in sterile saline. Blood glucose was sampled from a tail clip at zero time (i.e. prior to glucose or insulin administration) and at intervals thereafter and measured using a TRUEresult glucometer (Nipro Diagnostics, Fort Lauderdale, FL).
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2

Glucose and Insulin Tolerance Testing in Mice

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Glucose-tolerance tests were performed in 8-week-old mice fed with Cordyceps supplemented diets for 4-weeks after an overnight fast. Glucose was injected (intraperitoneal injection of a 20% solution, 10 mL/kg body weight) and blood glucose concentrations in blood were measured after 0, 15, 30, 60 and 120 min with a glucometer (Bayer Contour, Bayer, Germany). Insulin-tolerance tests were performed in 8-week-old mice fed ad libitum. After determination of basal blood glucose concentrations, each mouse received an intraperitoneal injection of insulin (0.75 IU per kg body weight; Novolin R Insulin; Novo Nordisk) and glucose concentrations in blood were measured after 15, 30, 45 and 60 min.
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3

Culturing 3T3, 3T3-Neu, and NT2 Cell Lines

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The 3T3 cell line was obtained from ATCC and cultured in DMEM (Gibco) supplemented with 10% FBS (Gemini) and 1% penicillin/streptomycin (Pen/Strep; Invitrogen). 3T3-Neu and NT2 tumors have been described (Reilly et al., 2000 (link)). 3T3-Neu cultures were made as described and cultured with the addition of 0.3 µM methotrexate. NT2 cells (passage 6) were cultured in RPMI-1640 (Gibco) supplemented with 20% FBS, 2 mM L-glutamine (Invitrogen), 12 mM Hepes (Invitrogen), 0.1 mM nonessential amino acid (Invitrogen), 1 mM sodium pyruvate (Invitrogen), 1% Pen/Strep, 50 µM 2-mercaptoethanol (Invitrogen), and 0.2 U/ml Novolin R-insulin (Novo Nordisk). The virus encoding the LH28z CAR was cultured in PLAT-E cells from Cell Biolabs in DMEM supplemented with 10% FBS and 1% Pen/Strep. All cells used for the generation of the CAR constructs were used within three passages in vitro, and 0.05% trypsin (Invitrogen) was used for digestion between passages.
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4

Cell Culture and Transfection Protocols

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MCF-7 breast adenocarcinoma (HTB-185), and D283 Med medulloblastoma (HTB-22) cell lines were procured from ATCC (Manassas, VA). Both cell lines were cultured per ATCC instructions, for the former in DMEM (Mediatech, Manassas, VA) supplemented with fetal bovine serum (10%), penicillin (100U mL−1), streptomycin (100 µgmL−1), (Mediatech, Manassas, VA), and Novolin R insulin (44 U L−1) (Novo Nordisk, Plainsboro, NJ), and for the latter in MEM (Mediatech, Manassas, VA) supplemented with fetal bovine serum (10%), penicillin (100U mL−1), streptomycin (100 µgmL−1), (Mediatech, Manassas, VA), and β-mercaptoethanol (10µM).
HEK 293T cells (a gift from Dr. Craig Walsh, University of California, Irvine) were cultured per ATCC instructions in MEM supplemented with fetal bovine serum (10%), penicillin (100U mL−1), streptomycin (100 µgmL−1), sodium pyruvate (1mM), and non-essential amino acid mixture (1X). HEK 293Ts were transiently transfected with pBLAST2-hFLK1 (InvivoGen, San Diego, CA) using BioT transfection reagent (Bioland Scientific, Paramount, CA) using conditions established by the manufacturer. HEK293T cells transiently transfected with pBLAST2-hFLK1 were utilized for flow cytometry or micropallet array studies 48 hours post transfection.
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