Abstract:
:Despite HER2-targeted therapies improving the outcome of HER2+ breast cancer, many patients experience resistance and metastatic progression. Cancer stem cells (CSC) play a role in this resistance and progression, thus combining HER2 targeting with CSC inhibition could improve the management of HER2+ breast cancer. The cystine-glutamate antiporter, xCT, is overexpressed in mammary CSCs and is crucial for their redox balance, self-renewal, and resistance to therapies, representing a potential target for breast cancer immunotherapy. We developed a combined immunotherapy targeting HER2 and xCT using the Bovine Herpes virus-4 vector, a safe vaccine that can confer immunogenicity to tumor antigens. Mammary cancer-prone BALB-neuT mice, transgenic for rat Her2, were immunized with the single or combined vaccines. Anti-HER2 vaccination slowed primary tumor growth, whereas anti-xCT vaccination primarily prevented metastasis formation. The combination of the two vaccines exerted a complementary effect by mediating the induction of cytotoxic T cells and of HER2 and xCT antibodies that induce antibody-dependent cell-mediated cytotoxicity and hinder cancer cell proliferation. Antibodies targeting xCT, but not those targeting HER2, directly affected CSC viability, self-renewal, and migration, inducing the antimetastatic effect of xCT vaccination. Our findings present a new therapy for HER2+ breast cancer, demonstrating that CSC immunotargeting via anti-xCT vaccination synergizes with HER2-directed immunotherapy.
journal_name
Cancer Immunol Resjournal_title
Cancer immunology researchauthors
Conti L,Bolli E,Di Lorenzo A,Franceschi V,Macchi F,Riccardo F,Ruiu R,Russo L,Quaglino E,Donofrio G,Cavallo Fdoi
10.1158/2326-6066.CIR-20-0082subject
Has Abstractpub_date
2020-08-01 00:00:00pages
1039-1053issue
8eissn
2326-6066issn
2326-6074pii
2326-6066.CIR-20-0082journal_volume
8pub_type
杂志文章abstract::Many immunotherapeutic approaches under development rely on T-cell recognition of cancer-derived peptides bound to human leukocyte antigen molecules on the cell surface. Direct experimental demonstration that such peptides are processed and bound is currently challenging. Here, we describe a method that meets this cha...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-19-0107
更新日期:2019-11-01 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::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::The "cancer immunogenomics" paradigm has facilitated the search for tumor-specific antigens over the last 4 years by applying comprehensive cancer genomics to tumor antigen discovery. We applied this methodology to identify tumor-specific "neoantigens" in the C57BL/6-derived GL261 and VM/Dk-derived SMA-560 tumor model...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-16-0156
更新日期:2016-12-01 00:00:00
abstract::Proneural-to-mesenchymal transition (PMT) is a common process in glioblastoma (GBM) progression that leads to increased radiotherapy resistance. However, the mechanism underlying PMT is poorly understood. Here, we found that tumor-associated macrophages triggered PMT in glioma stem cells (GSC) via small extracellular ...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-19-0759
更新日期:2020-07-01 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::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 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::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::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::With the advancement of personalized cancer immunotherapies, new tools are needed to identify tumor antigens and evaluate T-cell responses in model systems, specifically those that exhibit clinically relevant tumor progression. Key transgenic mouse models of breast cancer are generated and maintained on the FVB geneti...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-17-0298
更新日期:2018-06-01 00:00:00
abstract::CD169 (sialoadhesin) is a sialic acid receptor that is specifically expressed on macrophages, including lymph node sinus macrophages. Animal studies suggest that CD169(+) macrophages in lymph nodes have properties in preventing cancers. In order to determine the significance of CD169(+) macrophages in patients with ma...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-14-0180
更新日期:2015-12-01 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::Several host factors may affect the spread of cancer to distant organs; however, the intrinsic role of dendritic cells (DC) in controlling metastasis is poorly described. Here, we show in several tumor models that although the growth of primary tumors in Batf3-deficient mice, which lack cross-presenting DCs, was not d...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-17-0341
更新日期:2017-12-01 00:00:00
abstract::The cytokine IL15 is required for survival and activation of natural killer (NK) cells as well as expansion of NK-cell populations. Here, we compare the effects of continuous IL15 infusions on NK-cell subpopulations in cancer patients. Infusions affected the CD56bright NK-cell subpopulation in that the expansion rates...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-17-0279
更新日期:2017-10-01 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::Therapeutic cancer vaccines targeting melanoma-associated antigens are commonly immunogenic but are rarely effective in promoting objective clinical responses. To identify critical molecules for activation of effective antitumor immunity, we have profiled autologous dendritic cell (DC) vaccines used to treat 35 patien...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-20-0274
更新日期:2020-12-01 00:00:00
abstract::Triple-negative breast cancer (TNBC) cells are modulated in reaction to tumor-infiltrating lymphocytes. However, their specific responses to this immune pressure are unknown. In order to address this question, we first used mRNA sequencing to compare the immunophenotype of the TNBC cell line MDA-MB-231 and the luminal...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-16-0182
更新日期:2017-04-01 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::Hypoxia-driven, A2A adenosine receptor (A2AR)-mediated (hypoxia-A2-adenosinergic), T-cell-autonomous immunosuppression was first recognized as critical and nonredundant in protecting normal tissues from inflammatory damage and autoimmunity. However, this immunosuppressive mechanism can be highjacked by bacteria and tu...
journal_title:Cancer immunology research
pub_type: 杂志文章,评审
doi:10.1158/2326-6066.CIR-14-0075
更新日期:2014-07-01 00:00:00
abstract::Human papillomavirus type 16 (HPV16) is the etiologic factor for cervical cancer and a subset of oropharyngeal cancers. Although several prophylactic HPV vaccines are available, no effective therapeutic strategies to control active HPV diseases exist. Tumor implantation models are traditionally used to study HPV-assoc...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-16-0358
更新日期:2018-03-01 00:00:00
abstract::Macrophage-mediated cytotoxicity is controlled by surface receptor expression and activation. Despite the numerous studies documenting the role of macrophage C-type lectin receptors (CLR) in pathogen elimination, little is known about their contribution to antitumor responses. Here, we report that IL13 inhibits T-cell...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-18-0213
更新日期:2019-02-01 00:00:00
abstract::Immune checkpoint inhibitors are promising treatments for patients with a variety of malignancies. Toward understanding the determinants of response to immune checkpoint inhibitors, it was previously demonstrated that the presence of somatic mutations is associated with benefit from checkpoint inhibition. A hypothesis...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-16-0019
更新日期:2017-01-01 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::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::The presence of regulatory T cells (Treg) in solid tumors is known to play a role in patient survival in ovarian cancer and other malignancies. We assessed inherited genetic variations via 749 tag single-nucleotide polymorphisms (SNP) in 25 Treg-associated genes (CD28, CTLA4, FOXP3, IDO1, IL10, IL10RA, IL15, 1L17RA, I...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-13-0136
更新日期:2014-04-01 00:00:00
abstract::Ipilimumab and radiotherapy are commonly used to treat unresectable and metastatic melanoma. Results from preclinical studies and case reports suggest a biologic interaction between these two treatments. To understand the clinical implications of the interaction, we carried out a retrospective study reviewing records ...
journal_title:Cancer immunology research
pub_type: 杂志文章,评审
doi:10.1158/2326-6066.CIR-13-0082
更新日期:2013-08-01 00:00:00
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::Chronic lymphocytic leukemia (CLL) is a B-cell neoplasia characterized by protumor immune dysregulation involving nonmalignant cells of the microenvironment, including T lymphocytes and tumor-associated myeloid cells. Although therapeutic agents have improved treatment options for CLL, many patients still fail to resp...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-19-0152
更新日期:2019-12-01 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