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Intratumoral Activity of the CXCR3 Chemokine System Is Required for the Efficacy of Anti-PD-1 Therapy
Open accessAbstract
Despite compelling rates of durable clinical responses to programmed cell death-1 (PD-1) blockade, advances are needed to extend these benefits to resistant tumors. We found that tumor-bearing mice deficient in the chemokine receptor CXCR3 responded poorly to anti-PD-1 treatment. CXCR3 and its ligand CXCL9 were critical for a productive CD8+ T cell response in tumor-bearing mice treated with anti-PD-1 but were not required for the infiltration of CD8+ T cells into tumors. The anti-PD-1-induced anti-tumor response was facilitated by CXCL9 production from intratumoral CD103+ dendritic cells, suggesting that CXCR3 facilitates dendritic cell-T cell interactions within the tumor microenvironment. CXCR3 ligands in murine tumors and in plasma of melanoma patients were an indicator of clinical response to anti-PD-1, and their induction in non-responsive murine tumors promoted responsiveness to anti-PD-1. Our data suggest that the CXCR3 chemokine system is a biomarker for sensitivity to PD-1 blockade and that augmenting the intratumoral function of this chemokine system could improve clinical outcomes.
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In the citing paper
“Additionally, CXCL10 has been shown to promote effector T cell generation and function56,57.”
From Epigenetic state determines the in vivo efficacy of STING agonist therapy (2023) · cites this paper as [57]
Experimental — accuracy not yet measuredIn the citing paper
“CXCL9/10/11 are ligands of the CXCR3 receptor involved in increased trafficking of CD8+CXCR3+ T cells to tumors (47,48,64).”
In the citing paper
“The relevance of the CXCL9/10/11-CXCR3 pathway for recruiting and triggering cytotoxic T cells is well known (47-50,64).”
In the citing paper
“Data suggest that CXCR3 is not essential for the early recruitment of CD8+ T cells into tumors (64).”
In the citing paper
“Their ligands are reported to function both as biomarkers and inducers of response to anti-PD-1 alone (64) or in combination with anti-CTLA-4 (47).”
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Citations
Cites
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Items 401–500 of 723
Archetypes of checkpoint-responsive immunity
Im, K. W., Combes, A. J., Spitzer, M. H., Satpathy, A. T., & Krummel, M. F. (2021) · Trends in Immunology · doi:10.1016/j.it.2021.09.007 · Cited by 13
“Noteworthy, in one recent study, TMB was associated with ICB responsiveness in mouse MC38 colorectal carcinoma tumor models; the second most correlated gene signature was intratumoral DC-derived Cxcl9 (encoding CXCL9) – a chemokine described in mice as being produced by intratumoral cDC1s that functions to attract CD8…”
BackgroundCarbone, M. L., Madonna, G., Capone, A., Bove, M., Mastroeni, S., Levati, L., Capone, M., Ascierto, P. A., Galitiis, F. D., D’Atri, S., et al. (2022) · Scientific Reports · doi:10.1038/s41598-022-09373-9 · Cited by 11
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“Although the introduction of monoclonal antibodies against PD-1 such as pembrolizumab has revolutionized the therapy against many cancer forms, including HNSCC (8), and it is now being used as a first-line agent against R/MHNSCC after positive results from the KEYNOTE-048 study (11), only a fraction of patients show l…”
BackgroundIntraperitoneal programming of tailored CAR macrophages via mRNA-LNP to boost cancer immunotherapyPreprint
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“Multiple studies have highlighted that IFN-γ -induced chemokines, such as CXCL10 and CXCL11, play a crucial role in eliciting chemotaxis 47-49 , especially of monocytes/macrophages and T cells within the TME.”
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Yilmaz, A., Haerri, L., Granda, M. E., Coquoz, O., Lan, Q., & Rüegg, C. (2026) · npj Breast Cancer · doi:10.1038/s41523-026-00903-6 · Cited by 10
Mišetić, H., Keddar, M. R., Jeannon, J., & Ciccarelli, F. D. (2023) · Genome Medicine · doi:10.1186/s13073-023-01197-0 · Cited by 10
“In a similar way, we tested other described predictors of response to ICB, namely T-cell-inflamed gene-expression profile (GEP) [61], PDL1 [62], CD8A [63] and CXCL9 [64] expression levels, gender [65] and age at diagnosis [66].”
Kaistha, B. P., Kar, G., Dannhorn, A., Watkins, A., Opoku‐Ansah, G., Ilieva, K. M., Mullins, S., Anderton, J., Galvani, E., Garçon, F., et al. (2024) · Cancer Biology & Therapy · doi:10.1080/15384047.2023.2296048 · Cited by 10
“28 Elevated expression of PDCD1 (PD-1) infer tumoral T-cells in those CT26 tumor bearing mice are likely activated and/or exhausted and strongly support the inclusion of aPD-L1 to counteract adaptive immune-resistance to anti-tumor effects.”
Treatment of secondary CNS lymphoma using CD19-targeted chimeric antigen receptor (CAR) T cells
Kline, K. A. F., Luetkens, T., Koka, R. M., Kallen, M. E., Chen, W., Ahmad, H., Omili, D. O., Iraguha, T., Gebru, E., Fan, X., et al. (2024) · Cancer Immunology Immunotherapy · doi:10.1007/s00262-023-03619-9 · Cited by 10
“In addition to its potential role in orchestrating CNS-directed T cell migration, this chemokine and CXCR3 have also been shown to be involved in sensitivity to immune checkpoint inhibition and regulating T cell responses in general [21, 22].”
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“…hubs in the stromal zone, at the tumor–luminal interface of myeloid cells (macrophages, DCs, and granulocytes) and CXCR3-ligand+ effector T cells [71,72] Therefore, the spatial localization of these cell groups is not random: they are strategically placed to coordinate with T cells to interact…”
CD4+ anti-TGF-β CAR T cells and CD8+ conventional CAR T cells exhibit synergistic antitumor effects
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“This cellular architecture demonstrates spatially organized precision—myeloid cells are strategically positioned to synergize with T cells, thereby optimizing tumor-cell interaction efficiency [130,131].”
Resident Memory T Cells in the Tumor Microenvironment
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Interleukin-34 and immune checkpoint inhibitors: Unified weapons against cancer
Al‐Shaebi, F., Safi, M., Algabri, Y. A., Al‐Azab, M., Al-Danakh, A., Alradhi, M., Reem, A., & Zhang, W. (2023) · Frontiers in Oncology · doi:10.3389/fonc.2023.1099696 · Cited by 9
“By interacting with its receptor Cxcr3, Cxcl9 has been demonstrated to enhance the activity of T cell killers considerably (62), which may explain why PD-1 inhibition was more effective against IL-34 HM-1 tumors.”
BackgroundLin, A., Xu, W., Luo, P., & Zhang, J. (2021) · Frontiers in Pharmacology · doi:10.3389/fphar.2021.721181 · Cited by 10
“For example, CXCR3 can be used as an important biomarker for predicting the effect of treatment with anti-PD-1 in melanoma patients (Chow et al., 2019).”
BackgroundYan, Y., Upadhyaya, R., Zhang, V. W., & Berg, T. (2022) · Experimental Hematology · doi:10.1016/j.exphem.2022.03.003 · Cited by 11
The Prognostic Role and Significance of Dll4 and Toll-like Receptors in Cancer Development
Fasoulakis, Z. N., Koutras, A., Ntounis, T., Pergialiotis, V., Chionis, A., Katrachouras, A., Palios, V.-C., Symeonidis, P., Valsamaki, A., Syllaios, A., et al. (2022) · Cancers · doi:10.3390/cancers14071649 · Cited by 10
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“…amplification of CXCR3 signaling within the TME leads to improved responses to ICB in models of colorectal carcinoma, melanoma, and non-small cell lung cancer (27, 131) . mRNA-based therapeutics are also emerging as a platform for the intratumoral delivery of other immunomodulatory proteins (132) .”
InfluentialA novel GARP humanized mouse model for efficacy assessment of GARP-targeting therapies
Guo, J., Niu, Z., Lv, R., Yuan, J., Zhang, Z., Guan, X., Li, D., Zhang, H., Zhao, A., Feng, J., et al. (2024) · International Immunopharmacology · doi:10.1016/j.intimp.2024.111782 · Cited by 9
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Molecular Susceptibility and Treatment Challenges in Melanoma
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“In the cancer immune cycle, CXCL10 promotes T-cell trafficking to tumors, whereas it does not promote T-cell infiltration associated with CD8+ TIL density [1, 32].”
BackgroundFang, Z., Qu, S., Ji, X., Zheng, C., Mo, J., Xu, J., Zhang, J., & Shen, H. (2024) · BMC Gastroenterology · doi:10.1186/s12876-024-03518-y · Cited by 10
Triggering immunogenic death of cancer cells by nanoparticles overcomes immunotherapy resistance
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Fu, W., & Ma, G. (2022) · Frontiers in Genetics · doi:10.3389/fgene.2022.988821 · Cited by 9
“Chemokine receptor CXCR3 has been reported to be a biomarker of sensitivity to PD-1 blockade (Chow et al., 2019; Telli et al., 2021).”
BackgroundYe, D., Desai, J., Shi, J., Liu, S. M., Shen, W., Liu, T., Shi, Y., Wang, D., Liang, L., Yang, S., et al. (2023) · Biomarker Research · doi:10.1186/s40364-023-00465-w · Cited by 9
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“…lymphocytes; TAA, tumor-associated antigen; TSA, tumor-specific antigen; HLA, human leukocyte antigen; APM, antigen processing and presentation machinery; pAPCs, professional antigen presenting cells; DCs, dendritic cells; ssGSEA, single-sample gene set enrichment analysis; OS, overall…”
Hornsteiner, F., Vierthaler, J., Strandt, H., Resag, A., Fu, Z., Außerhofer, M., Tripp, C. H., Dieckmann, S. M., Kanduth, M., Farrand, K. J., et al. (2024) · Journal for ImmunoTherapy of Cancer · doi:10.1136/jitc-2023-008606 · Cited by 10
“For example, Xcl1 and Ccl5 mediate cDC1 infiltration into tumors, 47 whereas Cxcl9 and Cxcl10 are important for DC-T cell interaction by recruitment of CXCR3 + effector T cells 48 49 and for effective T cell-mediated melanoma growth control.”
BackgroundAshoori, M. D., Suzuki, K., Tokumaru, Y., Ikuta, N., Tajima, M., Honjo, T., & Ohta, A. (2021) · Frontiers in Immunology · doi:10.3389/fimmu.2020.618711 · Cited by 9
“These chemokines are responsible for CD8 T cell recruitment in various inflammation models (30– 32) and in tumors (41, 42).”
BackgroundLin, X., Wang, X., Gu, Q., Lei, D., Liu, X., & Yao, C. (2021) · Biomedical Materials · doi:10.1088/1748-605x/abe7b3 · Cited by 8
Rijnders, M., Balcioglu, H. E., Robbrecht, D. G. J., Oostvogels, A. A. M., Wijers, R., Aarts, M. J. B., Hamberg, P., van Leenders, G. J. L. H., Nakauma-González, J. A., Voortman, J., et al. (2021) · Clinical Cancer Research · doi:10.1158/1078-0432.ccr-20-3319 · Cited by 9
The soldiers needed to be awakened: Tumor-infiltrating immune cells
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“cDC1s also express CXC-chemokine ligand 9(CXCL9) and CXCL10 to activate CXCR3+ T and NK cells, recruit CD8+ T cells into the tumor sites, and foster the efficacy of anti-PD1 or anti-TIM-3 therapy (de Mingo Pulido et al., 2018; Chow et al., 2019).”
BackgroundYabuki, Y., Mitsuhashi, A., Ogino, H., Yoshida, A., Nguyen, N. T., Yoneda, H., Ozaki, R., Tsukazaki, Y., Morita, Y., Nokihara, H., et al. (2024) · International Journal of Cancer · doi:10.1002/ijc.35301 · Cited by 8
“20,21 In addition, our previous study indicated that tumor-derived IFN-inducible CXCL10/11 suppressed tumor angiogenesis following treatment with PD-1/PD-L1 antibody.”
IL-18-primed NK cells recruit dendritic cells and potentiate tumor therapy mediated by PD-1 blockade
Ohno, Y., Okamura, H., Yagita∥, H., & Tanaka, T. T. (2025) · Frontiers in Oncology · doi:10.3389/fonc.2025.1533808 · Cited by 8
Inhibition of MBTPS1 enhances antitumor immunity and potentiates anti-PD-1 immunotherapy
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The metastatic role of the CXCL10-CXCR3 axis and its therapeutic potential in osteosarcoma
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“…no difference in the absolute numbers of effector CD8 + T lymphocytes between CXCR3 -/- melanoma mice and controls, suggesting that CXCR3 primarily influences T cell positioning with CXCL10-expressing dendritic, macrophage, or Th1 cells, rather than controlling intratumoral infiltration [20,52].”
Zhao, X., Qin, X., Wang, R., Wang, Y., He, Y., Wang, Y., Li, K., Zhang, P., Yang, C., Wang, M., et al. (2025) · Advanced Materials · doi:10.1002/adma.202502800 · Cited by 9
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Kwok, T., Silva, I., Korpe, S., Dong, H., & Lancaster, J. N. (2025) · iScience · doi:10.1016/j.isci.2025.113538 · Cited by 10
“25 26–29 Taken together, these findings support TAM repolarization during ICB.”
Li, Y., & Han, Y. (2022) · PubMed Central · doi:10.5281/zenodo.6997707 · Cited by 8
Strategy and application of manipulating DCs chemotaxis in disease treatment and vaccine design
Lu, Y., & You, J. (2023) · Biomedicine & Pharmacotherapy · doi:10.1016/j.biopha.2023.114457 · Cited by 8
Dendritic cell maturation in the tumor microenvironment
Miao, Y., Liu, Y., Tang, H., & Zhang, Z. (2023) · National Science Open · doi:10.1360/nso/20220053 · Cited by 9
“In addition, CXCL9 produced by CD103 + DCs is required for the anti-PD-1 responses by regulating the interaction between CD8 + T cells and DCs [153].”
BackgroundSuzuki, T., Matsuura, K., Suzuki, Y., Okumura, F., Nagura, Y., Sobue, S., Matoya, S., Miyaki, T., Kimura, Y., Kusakabe, A., et al. (2023) · Cancer Medicine · doi:10.1002/cam4.6876 · Cited by 7
“16 Albeit without significance, serum CXCL10 levels were numerically higher at baseline and at the start of the second course and more strongly increased from baseline to the start of the second course among responders than among non-responders in the initial therapeutic response assessment of…”
BackgroundChemokine‐Based Injectable Navigation System for Enhancing CAR‐T Cell Therapy Against Solid Tumors
Wan, W., Han, W., Chen, J., Li, Y., Zhao, L., Gao, M., Shen, C., Liu, N., Deng, W., Ma, S., et al. (2024) · Advanced Functional Materials · doi:10.1002/adfm.202401161 · Cited by 8
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“Given the important roles of CXCR3 in T cell trafficking and function, 25–27 we next assessed whether our pre-clinical observation of increased T cell CXCR3 expression after a TGF-b + a PDL1 treatment could be made in archived PBMC from patients with newly diagnosed HNSCC treated with a TGF-b + a…”
Synthesis and Evaluation of Small Molecule Drug Conjugates Harnessing Thioester-Linked Maytansinoids
Lo, C., Chiu, T., Liu, Y., Huang, L., Yeh, T., Huang, K., Liu, K.-L., Hsu, C., Fang, M., Huang, Y., et al. (2022) · Pharmaceutics · doi:10.3390/pharmaceutics14071316 · Cited by 8
“The CXCL9–CXCR3 axis was correlated with improved PD-1 immunotherapy outcome [32].”
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Su, C., Kent, C. L., Pierpoint, M., Floyd, W., Luo, L., Williams, N. T., Ma, Y., Peng, B., Lazarides, A. L., Subramanian, A., et al. (2024) · JCI Insight · doi:10.1172/jci.insight.178767 · Cited by 8
Mastrogiovanni, M., Donnadieu, E., Pathak, R., & Bartolo, V. D. (2024) · Biology · doi:10.3390/biology13110860 · Cited by 8
“Conversely, CXCL9 and CXCL10 produced by DCs have been shown to increase the contact with CXCR3+ CTLs, thereby enhancing the e ffi - cacy of programmed cell death protein 1 (PD-1) blockade therapy [16,17].”
InfluentialKang, Y., Choi, D., Moon, D., Lee, K.-J., Oh, Y., Yang, J.-H., Jeong, S., Park, U., Im, S., Yang, S. H., et al. (2024) · Frontiers in Immunology · doi:10.3389/fimmu.2024.1477171 · Cited by 7
Spatial proteomics reveals sirtuin 1 to be a determinant of T-cell infiltration in human melanoma
Placke, J., Bottek, J., Váraljai, R., Shannan, B., Scharfenberg, S., Krisp, C., Spangenberg, P., Soun, C., Siemes, D., Borgards, L., et al. (2024) · British Journal of Dermatology · doi:10.1093/bjd/ljae433 · Cited by 7
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“30–33 Although our data did not reflect it, transientelevationsininflammatorycytokines,suchasIL - 6andTNF -α , have also been reported, signaling systemic immune activation.”
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“50 Taken together, these data suggest that tumor cell-released inducible (rather than constitutive) DAMPs, including pro-inflammatory cytokines and chemokines, may contribute to the immunogenicity of RIG-I/caspse-3/GSDME-driven pyroptotic tumor cell death.”
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“[161,162] CXCR3 also mediates distinct downstream signaling pathways depending on the ligand.”
Microparticle-Delivered Cxcl9 Prolongs Braf Inhibitor Efficacy in Melanoma
Romano, G., Paradiso, F., Li, P., Shukla, P., Barger, L. N., Naggar, O. S. E., Miller, J. P., Liang, R. J., Helms, T. L., Lazar, A. J., et al. (2023) · Cancer Immunology Research · doi:10.1158/2326-6066.cir-22-0224 · Cited by 7
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“CXCR3 ligands additionally were an indicator of clinical response to anti PD-1 in patient plasma, indicating that the CXCR3 chemokine is a biomarker for efficacy to PD-1 blockade [50].”
BackgroundInfluentialIvanović, T., Božić, D., Benzon, B., Čapkun, V., Vukojević, K., & Durdov, M. G. (2023) · Biomedicines · doi:10.3390/biomedicines11030709 · Cited by 7
“In a mouse model, TME-resident memory cells significantly enhance antitumor capacity and secrete interferon-γ (IFN-γ) to inhibit tumor progression [12].”
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“Irradiation increased CXCL10 production in MC38 mouse colon adenocarcinoma cells [37].”
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Miniature and versatile genome regulation TnpB-ωRNA toolkits facilitate cancer immunotherapy
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“( For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.) have higher concentrations of CXCL9 during treatment, but not at baseline [14].”
BackgroundPLCε1 suppresses tumor growth by regulating murine T cell mobilization
Strazza, M., Adam, K. R., Smrcka, A. V., Lerrer, S., & Mor, A. (2019) · Clinical & Experimental Immunology · doi:10.1111/cei.13409 · Cited by 6
Active Ratio Test (ART) as a Novel Diagnostic for Ovarian Cancer
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“Expression of CXCR3 on tumour-infiltrating CD8+ T effector cells also potentiates immune checkpoint inhibition by anti-programmed cell death-1 (PD-L1) in a colorectal cancer model [8].”
BackgroundSpatiotemporal and cell-state control of antigen presentation during tolerance and immunity
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MYO1F in neutrophils is required for the response to immune checkpoint blockade therapy
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“46,47 A decrease in cDC1 number or function associated with MDS could explain why patients 3DVN and 4DVN, who had undetectable and high numbers cDC1s respectively, both showed no induction of CD8 + T cells.”
Comparing DC subsets in solid tumors: what about DC3s?
Pachocki, C. J., Boes, M. L., & Affandi, A. J. (2024) · Immunotherapy Advances · doi:10.1093/immadv/ltaf021 · Cited by 5
“In tumor tissues, CD103 + cDC1s express CXCL9 and CXCL10 that attract activated T and NK cells through CXCR3 [54].”
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Conlon, M. T., Huang, J. Y., & Gerner, M. Y. (2025) · The Journal of Experimental Medicine · doi:10.1084/jem.20241311 · Cited by 6
Impact of multiple hits with cognate antigen on memory CD8+ T-cell fate
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“74 days, respectively), consistent with data showing that preexisting immune responses in tumors are essential to the success of checkpoint inhibitors [20, 21].”
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“Also, in another scientific study that analyzed plasma samples from 28 patients with advanced melanoma who were treated with pembrolizumab and nivolumab plus ipilimumab, responders ( n = 18) had a greater quantity of CXCL9 and CXCL10 compared to non-responders ( n = 10) [100].”
BackgroundIL-2/anti-IL-2 antibody complexes augment immune responses to therapeutic cancer vaccines
Sobral, M. C., Cabizzosu, L., Kang, S. J., Ruark, K. T., Najibi, A. J., Lane, R. S., Vitner, E. B., Ijaz, H., Dellacherie, M. O., Dacus, M. T., et al. (2024) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.2322356121 · Cited by 5
“…lymph nodes) can prime naive tumor - antigen - specific T cells; those in tumors can attract the progeny of previously activated T cells ( 21 , 22 ), provide them with survival signals ( 23 ), and enable their effector antitumor functions ( 20 , 24 ). cDCs also engage in productive…”
CXCR3: Here to stay to enhance cancer immunotherapy?
Rogava, M., & Izar, B. (2019) · EBioMedicine · doi:10.1016/j.ebiom.2019.09.044 · Cited by 5
“[9] Chow MT, Ozga AJ, Servis RL, Frederick DT, Lo JA, Fisher DE, et al.”
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“This may be due to the antitumor response of CXCR3-signaling CD8 T cells in the tumor microenvironment, which leads to a better prognosis of patients (23).”
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Molecular determinants of antagonist interactions with chemokine receptors CCR2 and CCR5Preprint
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Monitoring T-Cell Activation in the Tumor Microenvironment by PET Imaging of the Chemokine CXCL9
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“Like other chemokines, CXCL9 binds to glycosaminoglycans ( 9 , 10 ), which are found on cell surfaces and in the extracellular matrix, and recruits and positions cells expressing its receptor, C-X-C motif chemokine receptor 3 (CXCR3), in the tumor microenvironment (TME) ( 11 ).”
Targeting tumor-draining lymph node to overcome resistance to cancer immunotherapy: an update
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“Prior studies have demonstrated that the intratumoral activity of CXCR3 and its ligand CXCL9 are required for anti-PD-1 ef fi cacy 47 .”
CAR-T/NK/M-based combination therapies in cancer: A comprehensive review
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Exercise and CD8+ T cells: mechanisms of immune modulation in antitumor responses
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Metadata
- Authors
- Chow, M. T., Ozga, A. J., Servis, R. L., Frederick, D. T., Lo, J. A., Fisher, D. E., Freeman, G. J., Boland, G. M., & Luster, A. D.
- Affiliations
- Harvard University (US)
- Corresponding author
- Luster, Andrew D.
- ORCID
- Venue
- Immunity
- Publisher
- Elsevier BV
- Published
- 2019-06
- Volume
- 50
- Issue
- 6
- Pages
- 1498-1512.e5
- ISSN
- 1074-7613 (ISSN-L)
- PMC
- PMC6527362
- OpenAlex
- W2945224722
- Cited by
- 716
- References
- 57
- Citations by year
- 2026: 83 · 2025: 98 · 2024: 120 · 2023: 128 · 2022: 96 · 2021: 90 · 2020: 81 · 2019: 19
- FWCI
- 30.30
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Immunity (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (AR043369)
- Dr. Miriam and Sheldon G. Adelson Medical Research Foundation
- National Institutes of Health (AR043369, CA204028, AI112521, CA222871, CA163222)
- Melanoma Research Alliance
- Cancer Research Institute
- Topics
- Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
- Health Sciences › Medicine › Oncology › Chemokine receptors and signaling
- Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
- Keywords
- CXCR3, CXCL9, anti-PD-1 therapy, chemokine system, CD8+ T cells, CD103+ dendritic cells, dendritic cell-T cell interaction, tumor microenvironment, melanoma, predictive biomarkers, immunotherapy resistance
- MeSH terms
- Antineoplastic Agents, Immunological, Animals, Disease Models, Animal, Humans, Lymphocyte Activation, Neoplasms, Biomarkers, T-Lymphocyte Subsets, Mice, Knockout, CD8-Positive T-Lymphocytes, Xenograft Model Antitumor Assays, Epigenesis, Genetic, Mice, Receptors, CXCR3, Immunomodulation, Molecular Targeted Therapy, Tumor Microenvironment, Programmed Cell Death 1 Receptor
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