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B cell-defective (CBA/N X BALB/c)F1 male mice have 100 times less lipopolysaccharide-reactive and 10--100 times less lipoprotein- and Nocardia mitogen-reactive B cell precursors than F1 female mice with normal B cells.
Direct genetic manipulation of hematopoietic cells is limited by the lack of an established hematopoietic stem cell line. It has been demonstrated that embryonic stem (ES) cell<-->tetraploid embryos are completely ES cell-derived and that fetal liver (FL) cells from these embryos support hematopoiesis in lethally irradiated recipients. In this report, we… (More)
Our previous studies indicated that LTβR activation mainly by T cell derived LTα₁β₂ is crucial for the control and down-regulation of intestinal inflammation. In order to dissect the cellular and molecular role of LTβR activation in the experimental model of DSS-induced intestinal inflammation, we have generated cell type-specific LTβR-deficient mice with… (More)
β-Defensins are known for their antimicrobial activity and belong to the molecular barrier of the innate immune system against invading pathogens. In addition, it has been shown that some members of the β-defensin superfamily have the capacity to promote local innate inflammatory and systemic adaptive immune responses, mediated in part by the interaction… (More)