B2m-NOG

B2m-NOG
  • Live
  • Mouse
  • Male & Female Available
  • Albino
  • Available for direct purchase by CRO
Model No.NomenclatureGenotype
14957-FNOD.Cg-B2mem1Tac Prkdcscid Il2rgtm1Sug/JicTacko/ko;sp/sp;ko/ko
14957-MNOD.Cg-B2mem1Tac Prkdcscid Il2rgtm1Sug/JicTacko/ko;sp/sp;ko/y
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Overview

Nomenclature: NOD.Cg-B2mem1Tac Prkdcscid Il2rgtm1Sug/JicTac

  • The B2m-NOG is an immunodeficient CIEA NOG mouse® with an additional knockout of the B2m gene which disrupts MHC class I antigen presentation.
  • B2m-NOG mice can successfully engraft human PBMCs and tumors.
  • Compared to NOG, B2m-NOG mice have markedly delayed GvHD onset after human PBMC engraftment, providing an expanded study window (8+ weeks). This vastly increases the utility of the model in immuno-oncology experiments.
  • B2m-NOG has reduced efficiency of human PBMC engraftment relative to NOG as well as a CD4+ bias that increases over time in engrafted peripheral blood T cells (see data section).
  • Available engrafted with human PBMCs as huPBMC-B2m-NOG.
Orders by weight: Taconic cannot accept orders by weight for this model. Please note that shipments may contain animals with a larger weight variation.

Availability

Available now in typical study quantities.

Origin

The CIEA NOG mouse® was developed by Mamoru Ito of the Central Institute for Experimental Animals (CIEA) in Japan. The Prkdcscid mutation was identified by Mel Bosma of the Fox Chase Cancer Center in a C.B-17 congenic mouse population. This mutation was backcrossed onto the NOD/ShiJic strain at CIEA for at least eight generations. The Il2rg targeted mutation was developed by Dr. Kazuo Sugamura of Tohoku University by targeting the gene in ES cells derived from a 129 strain. Targeted ES cells were injected into C57BL/6 blastocysts. Resultant chimeras were backcrossed onto the C57BL/6JJic background for at least eight generations. The CIEA NOG mouse® was developed by backcrossing the C57BL/6JJic-Il2rg line to the NOD/ShiJic-Prkdcscid line for a total of eight generations. The B2m gene was knocked out via CRISPR-mediated knock-in of a nonsense mutation into exon 1. This mutation was made directly in the NOG strain.

Genetics

Species:Mouse
Strain Type:Congenic
Allele Type:Constitutive Knockout;Spontaneous Mutant
Coat Color:Albino
Genetic Background:NOD

Guides & Publications

Initial Publication: Verma, B.; Ruggeri, B.; Dubé, P.; Volden, P.; Wesa, A. Unique Immunodeficient Murine Host Strains Impact Expansion and Engraftment of T cells in PBMC Humanized Mice. New York Academy of Sciences’ Frontiers in Cancer Immunotherapy. May 14-15, 2019; New York, NY.

Applications & Therapeutic Areas

  • Cell and Tissue Humanized
  • Immunology
  • Inflammation
  • Oncology & Immuno-Oncology

Transit, Housing & Welfare

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Packing Practices

Taconic standard practice is to recombine animals of different home cages and/or ages from a single model and sex during packing, except in specific cases where Taconic's animal welfare policy prohibits recombination due to aggression or other concerns.  When an order is fulfilled with animals from more than one week of birth, this standard practice results in animals from a range of birth weeks packed together in a single TTC. When an order is fulfilled with animals from genotyped models, this standard practice results in animals from different home cages packed together in a single TTC.

Customers who wish to keep animals from different weeks of birth separated should place orders with the special instruction "Divide and label by age."  Note that this special request can result in increased costs for additional Taconic Transit Cages, dividers and/or freight charges.

Taconic discourages other types of custom packing requests as they can have a negative impact on animal welfare. Learn more.

B2m-NOG mice successfully engraft human PBMCs

B2m-NOG mice at 6-11 weeks of age were engrafted with varying doses of human PBMCs via tail vein injection. Engraftment was assessed weekly by flow cytometry of peripheral blood samples and is expressed as human CD3/mouse CD45.


B2m-NOG mice have extended survival following human PBMC engraftment

GvHD-free survival of PBMC engrafted mouse strains

NOG and B2m-NOG mice at 6-11 weeks of age were engrafted with 1 x 107 human PBMCs from a single donor via tail vein injection.  Mice were monitored for signs of xenogeneic Graft vs. Host Disease for up to 8 weeks post engraftment.  Data is shown in the Kaplan-Meier survival curve to represent proportion of mice exhibiting xenogeneic GvHD-free survival for the study duration by group (N=6/cohort). (P<0.001, Log rank Mantel-Cox test).


T cell subsets in B2m-NOG mice engrafted with human PBMCs

B2m-NOG mice at 6-11 weeks of age were engrafted with 1 x 107 human PBMCs from a single donor via tail vein injection.  Peripheral blood samples were collected weekly and immunophenotyped for T cells (CD3) and T cell subsets (CD4, CD8) to assess of T cell subset development and kinetics. Flow cytometry was used to assess CD4 and CD8 T cell subsets across groups. Results represent the average ± SD (N=5-6/cohort).

All data adapted from Verma et al. 2019.

B2m-NOG

Nonprofit users (excluding users at nonprofit foundations which are affiliated with a for-profit entity): For internal research purposes, the CIEA NOG mouse® Conditions of Use for nonprofit users apply. If you wish to perform sponsored research or fee-for-service contract research using the CIEA NOG mouse®, please inquire for access conditions.

For-profit users and users at foundations which are affiliated with for-profit entities: The CIEA NOG mouse® Conditions of Use for for-profit users apply.

The CIEA NOG mouse® is produced and distributed under license rights to the following patents and trademarks:

  • Japanese Patent No. 3,753,321
  • US Patent No. 7,145,055; 5,464,764; 5,487,992; 5,627,059; 5,631,153; 5,789,215; 6,204,061; 6,653,113; 6,689,610
    EP Patent No. 1,338,198
  • Japanese Trademark Reg. No. 4,823,423
  • US Trademark Reg. No. 3,118,040
  • EU Trademark Reg. No. 3,736,758

Pricing - USD

Opportunist Free (OF) Health Standard

14957 Female

14957-F Genotype ki/ki;sp/sp;ko/ko

Age in WeeksQuantity 1 - 49Quantity 50 - 999
3 to 10$376.00$338.00

14957 Male

14957-M Genotype ki/ki;sp/sp;ko/y

Age in WeeksQuantity 1 - 49Quantity 50 - 999
3 to 10$263.00$263.00

Pricing - EUR

Opportunist Free (OF) Health Standard

14957 Female

14957-F Genotype ki/ki;sp/sp;ko/ko

Age in WeeksQuantity 1 - 49Quantity 50 - 999
3 to 10€342,00€308,00

14957 Male

14957-M Genotype ki/ki;sp/sp;ko/y

Age in WeeksQuantity 1 - 49Quantity 50 - 999
3 to 10€239,00€239,00

Pricing - USD Nonprofit

Opportunist Free (OF) Health Standard

14957 Female

14957-F Genotype ki/ki;sp/sp;ko/ko

Age in WeeksQuantity 1 - 49Quantity 50 - 999
3 to 10$178.00$160.00

14957 Male

14957-M Genotype ki/ki;sp/sp;ko/y

Age in WeeksQuantity 1 - 49Quantity 50 - 999
3 to 10$159.00$143.00

Pricing - EUR Nonprofit

Opportunist Free (OF) Health Standard

14957 Female

14957-F Genotype ki/ki;sp/sp;ko/ko

Age in WeeksQuantity 1 - 49Quantity 50 - 999
3 to 10€162,00€146,00

14957 Male

14957-M Genotype ki/ki;sp/sp;ko/y

Age in WeeksQuantity 1 - 49Quantity 50 - 999
3 to 10€145,00€130,00

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