Signatures of B Cell Receptor Repertoire Following Pneumocystis Infection.
Signatures of B Cell Receptor Repertoire Following Pneumocystis Infection.
复制标题
肺孢子虫感染后 B 细胞受体库的特征
DOI:
10.3389/fmicb.2021.636250
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发表时间:
2021
影响因子:
5.2
通讯作者:
Tong ZH
中科院分区:
文献类型:
--
作者:
Sun H;Yang HQ;Zhai K;Tong ZH
B cells play vital roles in host defense against Pneumocystis infection. However, the features of the B cell receptor (BCR) repertoire in disease progression remain unclear. Here, we integrated single-cell RNA sequencing and single-cell BCR sequencing of immune cells from mouse lungs in an uninfected state and 1–4 weeks post-infection in order to illustrate the dynamic nature of B cell responses during Pneumocystis infection. We identified continuously increased plasma cells and an elevated ratio of (IgA + IgG) to (IgD + IgM) after infection. Moreover, Pneumocystis infection was associated with an increasing naïve B subset characterized by elevated expression of the transcription factor ATF3. The proportion of clonal expanded cells progressively increased, while BCR diversity decreased. Plasma cells exhibited higher levels of somatic hypermutation than naïve B cells. Biased usage of V(D)J genes was observed, and the usage frequency of IGHV9-3 rose. Overall, these results present a detailed atlas of B cell transcriptional changes and BCR repertoire features in the context of Pneumocystis infection, which provides valuable information for finding diagnostic biomarkers and developing potential immunotherapeutic targets.
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DOI:
10.4049/jimmunol.1401849
发表时间:
2014-12-01
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Stavnezer J;Schrader CE
通讯作者:
Schrader CE
影响因子:
3.7
作者:
Kiso K;Yoshifuji H;Oku T;Hikida M;Kitagori K;Hirayama Y;Nakajima T;Haga H;Tsuruyama T;Miyagawa-Hayashino A
通讯作者:
Miyagawa-Hayashino A
影响因子:
17.1
作者:
Jiang N;He J;Weinstein JA;Penland L;Sasaki S;He XS;Dekker CL;Zheng NY;Huang M;Sullivan M;Wilson PC;Greenberg HB;Davis MM;Fisher DS;Quake SR
通讯作者:
Quake SR
影响因子:
3.7
作者:
Guo F;Chen Y;Yang SL;Xia H;Li XW;Tong ZH
通讯作者:
Tong ZH
影响因子:
27.4
作者:
Doorenspleet, M. E.;Klarenbeek, P. L.;de Vries, N.
通讯作者:
de Vries, N.