Single-cell RNA sequencing reveals localized tumour ablation and intratumoural immunostimulant delivery potentiate T cell mediated tumour killing.
Single-cell RNA sequencing reveals localized tumour ablation and intratumoural immunostimulant delivery potentiate T cell mediated tumour killing.
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DOI:
10.1002/ctm2.937
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发表时间:
2022-07
影响因子:
10.6
通讯作者:
Chen, Wei R.
中科院分区:
文献类型:
--
作者:
Hoover, Ashley R.;Liu, Kaili;DeVette, Christa I.;Krawic, Jason R.;Medcalf, Alexandra D.;West, Connor L.;Hode, Tomas;Lam, Samuel S. K.;Welm, Alana L.;Sun, Xiao-Hong;Hildebrand, William H.;Chen, Wei R.
关键词:
Metastatic breast cancer poses great challenge in cancer treatment. N‐dihydrogalactochitosan (GC) is a novel immunoadjuvant that stimulates systemic immune responses when administered intratumourally following local tumour ablation. A combination of photothermal therapy (PTT) and GC, referred to as localized ablative immunotherapy (LAIT), extended animal survival and generates an activated B cell phenotype in MMTV‐PyMT mouse mammary tumour microenvironment (TME). However, how T cell populations respond to LAIT remains to be elucidated. Using depletion antibodies, we studied the contributions of CD8+ and CD4+ T cells to the therapeutic effect of LAIT. Using single‐cell RNA‐sequencing (scRNAseq), we analysed tumour‐infiltrating T cell heterogeneity and dissected their transcriptomes upon treatments of PTT, GC, and LAIT (PTT+GC). Loss of CD8+ T cells after LAIT abrogated the therapeutic benefits of LAIT. Ten days after treatment, proportions of CD8+ and CD4+ T cells in untreated TME were 19.2% and 23.0%, respectively. Upon LAIT, both proportions were increased to 25.5% and 36.2%, respectively. In particular, LAIT increased the proportions of naïve and memory cells from a resting state to an activated state. LAIT consistently induced the expression of co‐stimulatory molecules, type I IFN responsive genes, and a series of antitumor cytokines, Ifng, Tnf, Il1, and Il17 in CD8+ and CD4+ T cells. LAIT also induced immune checkpoints Pdcd1, Ctla4, and Lag3 expression, consistent with T cell activation. Relevant to clinical translation, LAIT also upregulated genes in CD8+ and CD4+ T cells that positively correlated with extended survival of breast cancer patients. Overall, our results reveal that LAIT prompts immunological remodelling of T cells by inducing broad proinflammatory responses and inhibiting suppressive signalling to drive antitumour immunity. LAIT induced a broad proinflammatory response in tumour‐infiltrating T cells. LAIT causes tumour immunogenic cell death (ICD), releasing danger associated molecular patterns (DAMPs) and tumour antigens (TAs). DAMPs and TAs recruit T cells into the tumour microenvironment, and the GC‐induced cytokines drive their differentiation into T helper 1 and 17 (Th1 and Th17) cells and cytotoxic lymphocytes (CTL).
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影响因子:
5.8
作者:
Gu, Zuguang;Eils, Roland;Schlesner, Matthias
通讯作者:
Schlesner, Matthias
DOI:
10.4049/jimmunol.0901657
发表时间:
2010-04-01
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Alex P;Ye M;Zachos NC;Sipes J;Nguyen T;Suhodrev M;Gonzales L;Arora Z;Zhang T;Centola M;Guggino SE;Li X
通讯作者:
Li X
影响因子:
7.2
作者:
Ekiz HA;Lai SA;Gundlapalli H;Haroun F;Williams MA;Welm AL
通讯作者:
Welm AL
影响因子:
6.4
作者:
Chen, WR;Jeong, SW;Nordquist, RE
通讯作者:
Nordquist, RE
影响因子:
3.2
作者:
Gnyawali, Surya C.;Chen, Yicho;Chen, Wei R.
通讯作者:
Chen, Wei R.