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B6d2f1 mice

Manufactured by Jackson ImmunoResearch
Sourced in United States, Montenegro

B6D2F1 mice are a hybrid mouse strain that is commonly used in research. These mice are the result of a cross between C57BL/6 (B6) and DBA/2 (D2) mouse strains. B6D2F1 mice exhibit characteristics of both parental strains and are often used as a model organism in various research applications.

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12 protocols using b6d2f1 mice

1

Genetically Modified Mouse Models of Prostate Cancer

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In our studies we used TgAPT121 mice (TgAPT121+/−, C57BL/6 × DBA/2 background) (19 (link)) bred to male B6D2F1 mice (Jackson Laboratories, Bar Harbor, ME). This model has probasin promoter driven, prostate epithelial cell-specific expression of a truncated SV40 Large T antigen protein that inactivates pRb family proteins. It has strong histologic similarities to the earlier stages of human prostate cancer (i.e. demonstrating hyperplasia, PIN, and adenocarcinoma over 6 months). Other mouse models used include mice with a floxed exon 2 in the Vdr gene (Vdrfl/fl; C57BL/6) (18 (link)); mice with Cre recombinase expression driven by the rat probasin promoter (PB-Cre+/−; C57BL/6) (NCI Mouse Models of Human Cancer Consortium, # 01XF5; Frederick, MD); and Vdr knockout mice with intestine-specific transgenic expression of the human VDR gene (C57BL/6) (20 (link)). Mice were genotyped as previously described (18 (link)–21 (link)). Mice were housed with a 12 h light/12 h dark cycle, in shoebox cages with individual ventilation. Lights were covered with a UVB filter (Pegasus Associates Lighting, Beaver, PA). Diets and water were fed ad libitum. Except for Experiment 4, mice were fed AIN-76A diet (1000 IU vitamin D3/kg diet (22 (link))). All experiments were approved by either the Purdue University or the Ohio State University Animal Care and Use Committees.
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2

Establishing Iron-Loaded Mouse Model

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Iron-loaded mouse model was generated as described previously [24 (link)]. Seven-week-old male B6D2F1 mice were purchased from The Jackson Laboratory (Bar Harbor, Maine, USA). This part of the study was approved by the Department of Health, Hong Kong SAR, and the Committee on the Use of Live Animals in Teaching and Research, The University of Hong Kong. The investigations conform with the Guide for the Care and Use of Laboratory Animals published by the US National Institutes of Health and the ethical policy of our institution is listed as being compliant with that of NIH (assurance number A5773-01). Mice were acclimatized for at least one week before experiments. The 8-week-old male B6D2F1 mice were given intra-peritoneal injection of iron dextran (50 mg iron/ml; Sigma, St Louis, MO, USA), at 3.1 mg per 25 g body wt per day on a 5 days/week schedule, for 13 weeks. Control mice received 10% dextrose (Sigma, St Louis, MO, USA). Mice were sacrificed by an overdose of isoflurane anaesthesia until lack of respiration for 5 minutes to ensure euthanasia, followed by cervical dislocation. Ventricular tissues were stored at -80°C until analysis.
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3

B6D2F1 Mice Study Protocol

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Eight-week-old male B6D2F1 mice were purchased from the Jackson Laboratory. Animals were kept under standard laboratory conditions and allowed free access to water and food except as noted. All experiments were performed with the approval of the appropriate institutional animal care and use committee.
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4

Transgenic Mouse Breeding and Housing

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All mice used in the study were housed and bred in Specific Pathogen Free (SPF) rooms located in the AAALAC-accredited Center for Comparative Medicine vivarium at Massachusetts General Hospital. All mice were housed in ventilated cages on a standard 12:12 light cycle. All procedures involving mice adhered to the guidelines of the approved Massachusetts General Hospital Institutional Animal Care and Use Committee (IACUC) protocol no. 2006N000104. XGFP mice were generated in Dr. Andras Nagy’s laboratory and made available to us through Dr. Jeanie Lee’s laboratory at MGH. C57B6/6J-Tg(pPGKneobpA)3Ems/J and B6D2F1 mice were obtained from Jackson labs. Swiss Webster and 129S6 mice were obtained from Taconic Biosciences.
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5

Bone Marrow Transplantation in Mice

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Example 76

Female C57BL/6 and B6D2F1 mice are purchased from the Jackson Laboratory (Bar Harbor, Me., USA). Bone marrow is harvested from the femurs and tibias of 12-20 week old mice. Before receiving transplantation, B6D2F1 mice are given 14 Gy total body irradiation (137Cs source). Irradiation is done twice, three hours apart. 5×10{circumflex over ( )}6 bone marrow cells are supplemented with 2×10{circumflex over ( )}6 nylon-wool nonadherent splenetic T cells from C57BL/6 mice and resuspended in Leibovitz's L15 medium (Life Technologies Inc., New York USA) and transplanted by tail vein infusion (0.25 mL) into B6D2F1 mice (Cooke K R, Gerbitz A, Crawford J M, Teshmia T, Hill G R, Tesolin A. Rossignol D P, Ferrara J L M, 2001. LPS antagonism reduces graft-versus-host disease and preserves graft-versus-host leukemia after experimental bone marrow transplantation. The Journal of Clinical Investigation. 107:1581-1589).

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6

Efficacy of Oncolytic HSV in NSG Mice

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Six to eight-week-old nude mice, NOD.Cg-Prkdcscid Il2rgtm1Wjl/SzJ (NSG) mice, and B6D2F1 mice were purchased from Jackson Laboratories (Bar Harbor, ME). All animal work was approved by The Ohio State University Animal Care and Use Committee and carried out according to an approved protocol. For survival studies, mice were monitored frequently for GB disease progression, and sacrificed when they became moribund with neurologic impairments and obvious weight loss. For flow cytometry analysis of immune regulation in the setting of oHSV, unless specified, mice were all sacrificed two days after oHSV injection, and tissues were harvested for immune cell isolation. oHSV used in vivo and in vitro is rQNestin34.5, which was previously described (14 (link)).
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7

Bone Marrow Transplant in Mice

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Example 76

Female C57BL/6 and B6D2F1 mice are purchased from the Jackson Laboratory (Bar Harbor, Me., USA). Bone marrow is harvested from the femurs and tibias of 12-20 week old mice. Before receiving transplantation, B6D2F1 mice are given 14 Gy total body irradiation (137Cs source). Irradiation is done twice, three hours apart. 5×10 6 bone marrow cells are supplemented with 2×10 6 nylon-wool nonadherent splenetic T cells from C57BL/6 mice and resuspended in Leibovitz's L15 medium (Life Technologies Inc., New York USA) and transplanted by tail vein infusion (0.25 mL) into B6D2F1 mice (Cooke K R, Gerbitz A, Crawford J M, Teshmia T, Hill G R, Tesolin A, Rossignol D P, Ferrara J L M 2001. LPS antagonism reduces graft-versus-host disease and preserves graft-versus-host leukemia after experimental bone marrow transplantation. The Journal of Clinical Investigation. 107:1581-1589).

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8

Athymic Nude Mice for Preclinical Studies

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Athymic nude NU/J mice from Jackson Laboratories (Bar Harbor, Maine) were used for imaging (n = 8) and pharmacokinetic studies (n = 48). Athymic nude CrTac:NCr-Foxn1nu mice from Taconic Laboratories (Hudson, NY) were used to determine the stability of PARPi-FL (n = 18). They were further used for orthotopic mouse models (n = 24). For in vivo toxicology, B6D2F1 mice from Jackson Laboratories (Bar Harbor, Maine) were used. For subcutaneous injections, mice were anesthetized with 2% isoflurane gas in 2 L/min medical air. For orthotopic injections, mice were anesthetized with a 150 mg/kg ketamine and 15 mg/kg xylazine cocktail (10 μL/g). For all intravenous injections, mice were gently warmed with a heat lamp, placed on a restrainer, tail sterilized with alcohol pads, and the injection was placed into a lateral tail vein. All animal experiments were done in accordance with protocols approved by the Institutional Animal Care and Use Committee of MSKCC and followed National Institutes of Health guidelines for animal welfare.
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9

Controlled Environment for Mouse Study

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B6D2F1 mice weighing 25–30 g (Jackson Laboratories; Barr Harbor, ME, USA) were allowed to acclimatize for seven days following arrival at our Comparative Medicine Facility under a controlled temperature (20−22 °C) and humidity (20−40%) environment with a 12-h light—dark cycle. All experimental protocols were approved by the IACUC (Institutional Animal Care and Use Committee) of Loyola University Chicago Health Sciences Division.
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10

B6D2F1 Mice Aerosol Infection Study

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Eight-week-old female B6D2F1 mice (The Jackson Laboratory, Bar Harbor, ME, USA) were used in this study. All animal procedures, including aerosol infection, oral gavage treatment, postinfection/treatment monitoring, were performed following standard protocols approved by the Institutional Animal Care and Use Committee (IACUC) of Rutgers University and were in compliance with institutional and governmental guidelines regulating the care and use of laboratory animals in experimental research.
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