Accumulation of CD5(+)CD19(+) B lymphocytes expressing PD-1 and PD-1L in hypertrophied pharyngeal tonsils.
Accumulation of CD5(+)CD19(+) B lymphocytes expressing PD-1 and PD-1L in hypertrophied pharyngeal tonsils.
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DOI:
10.1007/s10238-015-0385-y
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发表时间:
2016-11
影响因子:
4.6
通讯作者:
Giannopoulos, Krzysztof
中科院分区:
文献类型:
--
作者:
Wlasiuk, Paulina;Niedzielski, Artur;Skorka, Katarzyna;Karczmarczyk, Agnieszka;Zaleska, Joanna;Zajac, Malgorzata;Putowski, Maciej;Pac-Kozuchowska, Elzbieta;Giannopoulos, Krzysztof
Programmed death-1 (PD-1) is one of the most important inhibitory co-receptors expressed predominantly on activated T and B lymphocytes whose expression could be sustained by permanent antigenic stimulation accompanying chronic or recurrent tonsillitis. The expression of PD-1 and PD-1L was analyzed using flow cytometry on hypertrophied tonsils collected from 57 children. We observed high expression of PD-1 and PD-1L on certain lymphocytes subpopulations of hypertrophied tonsils; among T cells, the expression of PD-1 on protein level was higher on CD4+ cells (70.3 %) than on CD8+ cells (35 %). Interestingly, a limited expression of PD-1 was observed on CD19+ B lymphocytes (6.5 %), while CD5+CD19+ B cells overexpressed PD-1 (52.5 %). Moreover, the expression of PD-1L was also higher on CD5+CD19+ B cells (16.5 %) than on CD19+ B cells (3.5 %) and on CD4+ T cells (20 %) than on CD8+ T cells (10 %). PD-1 and PD-1L expressions correlated only on CD5+CD19+ cells. In conclusion, high expression of PD-1 and PD-1L on T and B cells could represent hallmark of immune system adaptation to chronic antigenic exposition in patients with tonsillitis.
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影响因子:
3.7
作者:
Nicholas KJ;Zern EK;Barnett L;Smith RM;Lorey SL;Copeland CA;Sadagopal S;Kalams SA
通讯作者:
Kalams SA
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通讯作者:
Pai SI
影响因子:
4.6
作者:
Sada-Ovalle, I.;Talayero, A.;Torre-Bouscoulet, L.
通讯作者:
Torre-Bouscoulet, L.
影响因子:
8.7
作者:
Riley JL
通讯作者:
Riley JL