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. Models of ADCC provide a system for uncovering immune-resistance mechanisms. We continuously exposed epidermal growth factor receptor (EGFR+) A431 cells to KIR-deficient NK92-CD16V effector cells and the anti-EGFR cetuximab. Persistent ADCC exposure yielded ADCC-resistant cells (ADCCR1) that, compared with control ADCC-sensitive cells (ADCCS1), exhibited reduced EGFR expression, overexpression of histone- and interferon-related genes, and a failure to activate NK cells, without evidence of epithelial-to-mesenchymal transition. These properties gradually reversed following withdrawal of ADCC selection pressure. The development of resistance was associated with lower expression of multiple cell-surface molecules that contribute to cell-cell interactions and immune synapse formation. Classic immune checkpoints did not modulate ADCC in this unique model system of immune resistance. We showed that the induction of ADCC resistance involves genetic and epigenetic changes that lead to a general loss of target cell adhesion properties that are required for the establishment of an immune synapse, killer cell activation, and target cell cytotoxicity.
journal_name
Cancer Immunol Resjournal_title
Cancer immunology researchauthors
Aldeghaither DS,Zahavi DJ,Murray JC,Fertig EJ,Graham GT,Zhang YW,O'Connell A,Ma J,Jablonski SA,Weiner LMdoi
10.1158/2326-6066.CIR-18-0266subject
Has Abstractpub_date
2019-02-01 00:00:00pages
230-243issue
2eissn
2326-6066issn
2326-6074pii
2326-6066.CIR-18-0266journal_volume
7pub_type
杂志文章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 ...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-20-0272
更新日期:2021-01-28 00:00:00
abstract::Efficacious antitumor immune responses must overcome multiple suppressive mechanisms in the tumor microenvironment to control cancer progression. In this study, we demonstrate that dual targeting of suppressive myeloid populations by inhibiting CSF-1/CSF-1R signaling and activation of antigen-presenting cells with ago...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-17-0258
更新日期:2017-12-01 00:00:00
abstract::Myeloid derived suppressor cells (MDSC) are a heterogeneous group of immature cells that accumulate in the peripheral blood and tumor microenvironment and are barriers to cancer therapy. MDSCs serve as prognostic biomarkers and are targets for therapy. On the basis of surface markers, three subsets of MDSCs have been ...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-19-0556
更新日期:2020-06-01 00:00:00
abstract::The presence and activity of CD8+ T cells within the tumor microenvironment are essential for the control of tumor growth. Utilizing B16-F10 melanoma tumors that express altered peptide ligands of chicken ovalbumin, OVA257-264, we measured high- and low-affinity OVA-specific responses following adoptive transfer of OT...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-19-0690
更新日期:2020-04-01 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::Colorectal cancer consists of a small number of cancer stem cells (CSC) and many non-CSCs. Although rare in number, CSCs are a target for cancer therapy, because they survive conventional chemo- and radiotherapies and perpetuate tumor formation in vivo In this study, we conducted an HLA ligandome analysis to survey HL...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-17-0518
更新日期:2018-03-01 00:00:00
abstract::Monocytes may contribute to tumor progression in part by mediating tumor-induced immunosuppression. Alterations to the monocyte populations and functions in untreated patients with late-stage melanoma are not fully understood. To characterize these alterations, we compared the frequency, phenotype, and functional capa...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-13-0094
更新日期:2014-03-01 00:00:00
abstract::Tertiary lymphoid structures (TLS) are ectopic lymphoid aggregates that phenotypically resemble conventional secondary lymphoid organs and are commonly found at sites of chronic inflammation. They are also found in a wide variety of primary and metastatic human tumors. The presence of tumor-associated TLS (TA-TLS) is ...
journal_title:Cancer immunology research
pub_type: 杂志文章,评审
doi:10.1158/2326-6066.CIR-20-0432
更新日期:2020-11-01 00:00:00
abstract::We assessed the contribution of IL1 signaling molecules to malignant tumor growth using IL1β-/-, IL1α-/-, and IL1R1-/- mice. Tumors grew progressively in IL1R-/- and IL1α-/- mice but were often absent in IL1β-/- mice. This was observed whether tumors were implanted intradermally or injected intravenously and was true ...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-19-0552
更新日期:2020-05-01 00:00:00
abstract::Cancer-testis (CT) antigens are attractive tumor antigens for cancer immunotherapy. They comprise a group of proteins normally expressed in germ cells and aberrantly activated in a variety of human cancers. The protein expression of eight cancer-testis antigens [MAGEA, NY-ESO-1, GAGE, MAGEC1 (CT7), MAGEC2 (CT10), CT45...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-13-0124
更新日期:2014-05-01 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::Chimeric antigen receptor (CAR) T-cell therapy is effective in the treatment of cancers of hematopoietic origin. In the immunosuppressive solid tumor environment, CAR T cells encounter obstacles that compromise their efficacy. We developed a strategy to address these barriers by having CAR T cells secrete single-domai...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-19-0734
更新日期:2020-04-01 00:00:00
abstract::Preventive vaccination against tumor-associated endogenous antigens is considered to be an attractive strategy for the induction of a curative immune response concomitant with a long-lasting immunologic memory. The mucin MUC1 is a promising tumor antigen, as its tumor-associated form differs from the glycoprotein form...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-18-0256
更新日期:2019-01-01 00:00:00
abstract::Chronic inflammation drives colitis-associated colorectal cancer (CAC) in inflammatory bowel disease (IBD). FoxP3+ regulatory T cells (Treg) coexpressing the Th17-related transcription factor RORγt accumulate in the lamina propria of IBD patients, where they are thought to represent an intermediate stage of developmen...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-17-0698
更新日期:2018-09-01 00:00:00
abstract::Activation of YAP, a Hippo pathway effector, is an important resistance mechanism to BRAF inhibitor (BRAFi) in melanoma. Emerging evidence also suggests that YAP is involved in suppression of the antitumor immune response. However, the potential direct impact of YAP activity on cytotoxic T-cell immune responses has no...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-17-0320
更新日期:2018-03-01 00:00:00
abstract::T-cell receptor (TCR) gene therapy is a promising next-generation antitumor treatment. We previously developed a single-T-cell analysis protocol that allows the rapid capture of paired TCRα and β cDNAs. Here, we applied the protocol to analyze the TCR repertoire of tumor-infiltrating lymphocytes (TIL) of various cance...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-17-0489
更新日期:2018-04-01 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::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::Recruitment of myeloid-derived suppressor cells (MDSC) into the tumor microenvironment (TME) contributes to cancer immune evasion. MDSCs express the chemokine receptor CXCR2, and inhibiting CXCR2 suppresses the recruitment of MDSCs into the tumor and the premetastatic niche. Here, we compared the growth and metastasis...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-20-0312
更新日期:2020-11-11 00:00:00
abstract::The transcription factor T-bet controls the Th1 genetic program in T cells for effective antitumor responses. Anti-CTLA-4 immunotherapy elicits dramatic antitumor responses in mice and in human patients; however, factors that regulate T-bet expression during an antitumor response mediated by anti-CTLA-4 remain to be e...
journal_title:Cancer immunology research
pub_type: 临床试验,杂志文章
doi:10.1158/2326-6066.CIR-13-0155
更新日期:2014-02-01 00:00:00
abstract::Innate lymphoid cells (ILC) are responsible for mucosal tissue homeostasis and are involved in the progression and suppression of several types of cancer. However, the effects of ILCs on colorectal cancer are poorly understood. We characterized human ILCs in normal colon and colorectal cancer tissue, investigating the...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-19-0775
更新日期:2020-06-01 00:00:00
abstract::Monoclonal antibodies (mAb) can modulate cancer cell signal transduction and recruit antitumor immune effector mechanisms-including antibody-dependent cellular cytotoxicity (ADCC). Although several clinically effective antibodies can promote ADCC, therapeutic resistance is common. We hypothesized that oncogenic signal...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-14-0083
更新日期:2014-12-01 00:00:00
abstract::Pancreatic ductal adenocarcinoma (PDA) is an aggressive malignancy characterized by a paucity of tumor-proximal CD8+ T cells and resistance to immunotherapeutic interventions. Cancer-associated mechanisms that elicit CD8+ T-cell exclusion and resistance to immunotherapy are not well-known. Here, using a Kras- and p53-...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-19-0349
更新日期:2020-03-01 00:00:00
abstract::Cancer immunology has recently made major therapeutic inroads that represent clinical application of basic insights into mechanisms that govern immunity against tumors. Research into fundamental elements of T-cell and natural killer-cell biology, including the basis of antigen recognition, activation, proliferation, a...
journal_title:Cancer immunology research
pub_type: 杂志文章,评审
doi:10.1158/2326-6066.CIR-14-0153
更新日期:2014-10-01 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::The prognosis is very dismal for patients with relapsed CD20(+) B-cell non-Hodgkin lymphoma (B-NHL). Facilitating the development of alternative novel therapeutic strategies is required to improve outcomes in patients with recurrent/refractory CD20(+) B-NHL. In this study, we investigated functional activities of anti...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-14-0114
更新日期:2015-04-01 00:00:00
abstract::Anti-Programed Death 1 (PD-1) is standard immunotherapy for multiple cancers, and the expression of one of its ligands, PD-L1, has been described in germ cell tumors (GCT). Neither the clinical activity of anti-PD-1 nor the incidence of an immunoresponsive tumor microenvironment has been described for GCTs. A patient ...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-16-0087
更新日期:2016-11-01 00:00:00
abstract::Pancreatic cancer is the fourth leading cause of cancer-related deaths in the United States. Less than 6% of patients survive beyond the fifth year due to inadequate early diagnostics and ineffective treatment options. Our laboratory has developed an allogeneic, granulocyte-macrophage colony-stimulating factor (GM-CSF...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-15-0200-T
更新日期:2016-03-01 00:00:00
abstract::Pneumonitis may complicate anti-programmed death-1 (PD-1) therapy, although symptoms usually resolve with steroids. The long-term effects on respiratory function, however, are not well defined. We screened melanoma patients treated with anti-PD-1, with and without ipilimumab (anti-CTLA-4), and identified 31 patients w...
journal_title:Cancer immunology research
pub_type: 杂志文章,多中心研究
doi:10.1158/2326-6066.CIR-18-0717
更新日期:2019-11-01 00:00:00
abstract::Blockade of the pathway including programmed death-ligand 1 (PD-L1) and its receptor programmed cell death protein 1 (PD-1) has produced clinical benefits in patients with a variety of cancers. Elevated levels of soluble PD-L1 (sPD-L1) have been associated with worse prognosis in renal cell carcinoma and multiple myel...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-16-0329
更新日期:2017-06-01 00:00:00