Abstract:
:Pancreatic ductal adenocarcinoma (PDAC) is the third leading cause of cancer death in the United States. Pancreatic tumors are minimally infiltrated by T cells and are largely refractory to immunotherapy. Accordingly, the role of T-cell immunity in pancreatic cancer has been somewhat overlooked. Here, we hypothesized that immune resistance in pancreatic cancer was induced in response to antitumor T-cell immune responses, and that understanding how pancreatic tumors respond to immune attack may facilitate the development of more effective therapeutic strategies. We now provide evidence that T cell-dependent host immune responses induce a PDAC-derived myeloid mimicry phenomenon and stimulate immune resistance. Three KPC mouse models of pancreatic cancer were employed: the mT3-2D (Kras+/LSL-G12D; Trp53+/LSL-R172H; Pdx1-Cre) subcutaneous and orthotopic models, as well as the KP1 (p48-CRE/LSL-Kras/Trp53flox/flox) subcutaneous model. KPC cancer cells were grown in immunocompetent and immunodeficient C57BL/6 mice and analyzed to determine the impact of adaptive immunity on malignant epithelial cells, as well as on whole tumors. We found that induced T-cell antitumor immunity, via signal transducer and activator of transcription 1 (STAT1), stimulated malignant epithelial pancreatic cells to induce the expression of genes typically expressed by myeloid cells and altered intratumoral immunosuppressive myeloid cell profiles. Targeting the Janus Kinase (JAK)/STAT signaling pathway using the FDA approved drug ruxolitinib overcame these tumor-protective responses and improved anti-PD-1 therapeutic efficacy. These findings provide future directions for treatments that specifically disable this mechanism of resistance in PDAC.
journal_name
Cancer Immunol Resjournal_title
Cancer immunology researchauthors
Ajina R,Malchiodi ZX,Fitzgerald AA,Zuo A,Wang S,Moussa M,Cooper CJ,Shen Y,Johnson QR,Parks JM,Smith JC,Catalfamo M,Fertig EJ,Jablonski SA,Weiner LMdoi
10.1158/2326-6066.CIR-20-0272subject
Has Abstractpub_date
2021-01-28 00:00:00eissn
2326-6066issn
2326-6074pii
2326-6066.CIR-20-0272pub_type
杂志文章abstract::The relationship between the adaptive CD4+ T cell response and human cancer is unclear. The oncofetal antigen 5T4 is expressed on many human carcinomas, including colorectal cancer (CRC) cells, but has limited expression on normal tissues. We previously identified anti-5T4 CD4+ T cells in a proportion of CRC patients,...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-13-0035
更新日期:2013-12-01 00:00:00
abstract::A posteriori evidence suggests that radiotherapy to a targeted tumor can elicit an immune-mediated abscopal (ab-scopus, away from the target) effect in non-targeted tumors, when combined with an anti-cytotoxic T-lymphocyte antigen-4 monoclonal (CTLA-4) antibody. Concurrent radiotherapy and ipilimumab (a human monoclon...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-13-0115
更新日期:2013-12-01 00:00:00
abstract::Chimeric antigen receptor (CAR) T-cell therapy has shown remarkable successes in fighting B-cell leukemias/lymphomas. Promising response rates are reported in patients treated with B-cell maturation antigen (BCMA) CAR T cells for multiple myeloma. However, responses appear to be nondurable, highlighting the need to ex...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-20-0118
更新日期:2020-12-01 00:00:00
abstract::Tumor-infiltrating lymphocytes (TIL) in colorectal cancer liver metastases (CLM) have been associated with more favorable patient outcomes, but whether MHC class I (MHC-I) expression on cancer cells affects prognosis is uncertain. Immunohistochemistry was performed on a tissue microarray of 158 patients with CLM, who ...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-13-0180
更新日期:2014-06-01 00:00:00
abstract::We conducted in vitro studies and a clinical trial for patients with squamous cell carcinoma of the head and neck (SCCHN) to study the relationship between FcγRIIIa polymorphisms and antibody-dependent cellular cytotoxicity (ADCC). In vitro, FcγRIIIa genotype was correlated with ADCC and innate cytotoxicity using natu...
journal_title:Cancer immunology research
pub_type: 杂志文章,多中心研究
doi:10.1158/2326-6066.CIR-14-0188
更新日期:2015-05-01 00:00:00
abstract::Freeze-dried black raspberries (BRB), their component anthocyanins (AC), and a metabolite of BRB ACs, protocatechuic acid (PCA), inhibit the development of esophageal cancer in rats induced by the carcinogen, N-nitrosomethylbenzylamine (NMBA). All three components reduce inflammation in the esophagus and in plasma. Th...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-15-0091
更新日期:2016-01-01 00:00:00
abstract::On September 25-28, 2016, in New York City, the Second International Cancer Immunotherapy Conference was cohosted by the Cancer Research Institute, the American Association for Cancer Research, the Association for Cancer Immunotherapy, and the European Academy of Tumor Immunology. This exciting conference brought toge...
journal_title:Cancer immunology research
pub_type:
doi:10.1158/2326-6066.CIR-16-0276
更新日期:2016-12-01 00:00:00
abstract::CD137 (4-1BB) costimulation imprints long-term changes that instruct the ultimate behavior of T cells that have previously experienced CD137 ligation. Epigenetic changes could provide a suitable mechanism for these long-term consequences. Genome-wide DNA methylation arrays were carried out on human peripheral blood CD...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-17-0159
更新日期:2018-01-01 00:00:00
abstract::Immune checkpoint inhibitors promote T cell-mediated killing of cancer cells; however, only a subset of patients benefit from the treatment. A possible reason for this limitation may be that the tumor microenvironment (TME) is immune privileged, which may exclude cytotoxic T cells from the vicinity of cancer cells. Th...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-16-0303
更新日期:2017-11-01 00:00:00
abstract::The importance of natural killer (NK) cells in the early immune response to viral or bacterial infection is well known. However, the phenotype, function, and physiologic role of NK cells during the late stage of persistent viral infection have not been extensively studied. Here, we characterized NK cells in mice persi...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-18-0403
更新日期:2019-04-01 00:00:00
abstract::Macroenvironmental factors, including a patient's physical and social environment, play a role in cancer risk and progression. Our previous studies show that living in an enriched environment (EE) providing complex stimuli confers an anticancer phenotype in mice mediated, in part by a specific neuroendocrine axis, wit...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-15-0297
更新日期:2016-06-01 00:00:00
abstract::Modulating the function of immune receptors with antibodies is ushering in a new era in cancer immunotherapy. With the notable exception of PD-1 blockade used as monotherapy, immune modulation can be associated with significant toxicities that are expected to escalate with the development of increasingly potent immune...
journal_title:Cancer immunology research
pub_type: 杂志文章,评审
doi:10.1158/2326-6066.CIR-15-0194
更新日期:2015-11-01 00:00:00
abstract::Inciting the cellular arm of adaptive immunity has been the fundamental goal of cancer immunotherapy strategies, specifically focusing on inducing tumor antigen-specific responses by CD8(+) cytotoxic T lymphocytes (CTL). However, there is an emerging appreciation that the cytotoxic function of CD4(+) T cells can be ef...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-13-0208
更新日期:2014-11-01 00:00:00
abstract::Vaccination of patients with ovarian cancer with overlapping long peptides (OLP) from cancer-testis antigen NY-ESO-1 and poly-ICLC in Montanide-ISA-51 (Montanide) was found to consistently induce integrated immune responses (antibody, CD4(+), and CD8(+) T cells). Using detailed methods, we investigated the respective ...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-13-0089
更新日期:2013-11-01 00:00:00
abstract::MHC-bound peptides from aberrant proteins may be a specific immunotherapeutic target on cancer cells. Because of difficulties in identifying such antigens, viral or model antigens have so far been used to study their biological relevance. We here identify a naturally existing human T-cell epitope derived from a trunca...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-18-0137
更新日期:2019-05-01 00:00:00
abstract::Immunotherapies targeting T lymphocytes are revolutionizing cancer therapy but only benefit a subset of patients, especially in colorectal cancer. Thus, additional insight into the tumor microenvironment (TME) is required. Eosinophils are bone marrow-derived cells that have been largely studied in the context of aller...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-18-0494
更新日期:2019-03-01 00:00:00
abstract::Infectious agents play an etiologic role in approximately 20% of cancer cases worldwide. Eleven pathogens (seven viruses, three parasites, and one bacterium) are known to contribute to oncogenesis either directly via the expression of their protein products or indirectly via chronic inflammation. Although prevention o...
journal_title:Cancer immunology research
pub_type: 杂志文章,评审
doi:10.1158/2326-6066.CIR-13-0179
更新日期:2014-01-01 00:00:00
abstract::Tumors use various mechanisms to avoid immune destruction. Cyclooxygenase-2 (COX-2) expression may be a driver of immune suppression in melanoma, but the mechanisms involved remain elusive. Here, we show that COX-2 expression drives constitutive expression of indoleamine 2,3-dioxygenase 1 (IDO1) in human tumor cells. ...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-16-0400
更新日期:2017-08-01 00:00:00
abstract::Delayed radiation-induced vasculitic leukoencephalopathy related to stereotactic radiosurgery (SRS) of brain metastases has been reported to manifest clinically 9 to 18 months after treatment. Immune-modulating therapies have been introduced to treatment regimens for malignancies with metastatic predilection to the br...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-15-0238
更新日期:2016-06-01 00:00:00
abstract::Despite the rapid progress in the development of novel adoptive T-cell therapies, the clinical benefits in treatment of established tumors have remained modest. Several immune evasion mechanisms hinder T-cell entry into tumors and their activity within the tumor. Of note, oncolytic adenoviruses are intrinsically immun...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-14-0220-T
更新日期:2015-08-01 00:00:00
abstract::Individuals of African descent are disproportionately affected by specific complex diseases, such as breast and prostate cancer, which are driven by both biological and nonbiological factors. In the case of breast cancer, there is clear evidence that psychosocial factors (environment, socioeconomic status, health beha...
journal_title:Cancer immunology research
pub_type: 杂志文章,评审
doi:10.1158/2326-6066.CIR-18-0564
更新日期:2019-09-01 00:00:00
abstract::Ligation of GITR (glucocorticoid-induced tumor necrosis factor (TNF) receptor-related gene, or TNFRSF18) by agonist antibody has recently entered into early phase clinical trials for the treatment of advanced malignancies. Although the ability of GITR modulation to induce tumor regression is well-documented in preclin...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-13-0086
更新日期:2013-11-01 00:00:00
abstract::Granulocytic-macrophage colony-stimulating factor (GM-CSF) is used as an adjuvant in cancer vaccine trials and has the potential to enhance antitumor efficacy with immunotherapy; however, its immunologic effects are not fully understood. Here, we report results from a phase I study of neoadjuvant GM-CSF in patients wi...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-16-0042
更新日期:2016-11-01 00:00:00
abstract::Solid tumors are refractory to cellular immunotherapies in part because they contain suppressive immune effectors such as myeloid-derived suppressor cells (MDSCs) that inhibit cytotoxic lymphocytes. Strategies to reverse the suppressive tumor microenvironment (TME) should also attract and activate immune effectors wit...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-18-0572
更新日期:2019-03-01 00:00:00
abstract::Targeted monoclonal antibody therapy is a promising therapeutic strategy for cancer, and antibody-dependent cell-mediated cytotoxicity (ADCC) represents a crucial mechanism underlying these approaches. The majority of patients have limited responses to monoclonal antibody therapy due to the development of resistance. ...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-18-0266
更新日期:2019-02-01 00:00:00
abstract::One of the obstacles for cancer immunotherapy is the inefficiency of CD8(+) T-cell recruitment to tumors. STAT3 has been shown to suppress CD8(+) T-cell antitumor functions in various cancer models, in part by restricting accumulation of CD8(+) T cells. However, the underlying molecular mechanism by which STAT3 in CD8...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-15-0014
更新日期:2015-08-01 00:00:00
abstract::Antibody-drug conjugates (ADC) are emerging as powerful treatment strategies with outstanding target-specificity and high therapeutic activity in patients with cancer. Brentuximab vedotin represents a first-in-class ADC directed against CD30(+) malignancies. We hypothesized that its sustained clinical responses could ...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-13-0198
更新日期:2014-08-01 00:00:00
abstract::Advanced and metastatic squamous cell carcinomas (SCC) are common and difficult-to-treat malignancies. We assessed 75 immunotherapy-treated patients with SCC from a clinically annotated database of 2,651 patients, as well as 9,407 patients from a deidentified database for molecular features that might influence checkp...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-18-0716
更新日期:2019-06-01 00:00:00
abstract::Programmed death 1 (PD-1) and PD ligand 1 (PD-L1) inhibitors have shown activity in metastatic clear cell renal cell carcinoma (ccRCC). Data on the activity of these agents in patients with non-clear cell RCC (nccRCC) or patients with sarcomatoid/rhabdoid differentiation are limited. In this multicenter analysis, we e...
journal_title:Cancer immunology research
pub_type: 杂志文章,多中心研究
doi:10.1158/2326-6066.CIR-17-0475
更新日期:2018-07-01 00:00:00
abstract::The goal of this study was to characterize the molecular mechanisms underlying cetuximab-mediated upregulation of HLA class I antigen-processing machinery components in head and neck cancer (HNC) cells and to determine the clinical significance of these changes in cetuximab-treated HNC patients. Flow cytometry, signal...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-15-0053
更新日期:2015-08-01 00:00:00