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. 1998 Sep;95(1):126–131. doi: 10.1046/j.1365-2567.1998.00577.x

Modulation of Ly49A receptors on mature cells to changes in major histocompatibility complex class I molecules.

N K Khoo 1, L Fahlén 1, C L Sentman 1
PMCID: PMC1364386  PMID: 9767467

Abstract

The expression of murine Ly49 receptors on natural killer (NK) cells and NK1.1+ T cells is believed to prevent these cells from responding against normal self-tissues. In this report we investigated whether the expression level of Ly49A was fixed on mature cells or if it could be adapted as the major histocompatibility complex (MHC) class I environment changed in vivo. By transferring peripheral T cells from Ly49A transgenic mice into BALB/c nude/nude and B6 nude/nude mice, we demonstrated that mature cells modulate their Ly49A receptor expression relative to the in vivo MHC class I environment. These results indicated that the expression of the inhibitory Ly49A receptor is not permanently fixed during a maturation and/or education process but rather is adapted to MHC class I changes on the surrounding cells.

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Selected References

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