huHSC-NKG-hIL15 Mouse

NKG mice (Catalog Number: C001316) are a type of severe immunodeficient mouse developed by Cyagen by deleting the Il2rg gene from the NOD-Scid strain. This strain lacks mature T, B, and NK cells, has reduced complement activity, and weak macrophage phagocytosis of human cells. As a result, NKG mice can efficiently engraft human hematopoietic stem cells (HSC), peripheral blood mononuclear cells (PBMC), patient-derived xenografts (PDX), or adult stem cells and tissues.

Interleukin-15 (IL-15) is a cytokine that regulates the activation and proliferation of T cells and natural killer (NK) cells. It also plays a role in balancing the number of CD8+ memory cells alongside IL-2. Research indicates that IL-15 is essential for the differentiation, function, and survival of NK cells. Providing sufficient human IL-15 can help stabilize the function of human NK cells within a mouse model ^[1-2]. The NKG-hIL15 mice (Catalog Number: C001513) are constructed by knocking in the human IL15 gene from the NKG mice. Compared to NKG mice, NKG-hIL15 mice significantly enhance the reconstitution proportion of human NK cells after HSC or PBMC transplantation. These mice can be utilized for the development of immunotherapies targeting NK cells and drug evaluation.

The huHSC-NKG-hIL15 mouse refers to an immune system humanized mouse model constructed by transplanting human hematopoietic stem cells (HSC) into NKG-hIL15 mice after sub-lethal dose irradiation. This model can reconstitute various immune cells, has a long lifespan, and is particularly effective in rebuilding human NK cells, which can aid in the development of NK cell-related tumor immunotherapies.