scholarly journals Syngeneic animal models of tobacco-associated oral cancer reveal the activity of in situ anti-CTLA-4

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Zhiyong Wang ◽  
Victoria H. Wu ◽  
Michael M. Allevato ◽  
Mara Gilardi ◽  
Yudou He ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Risk Factor ◽  
Poor Prognosis ◽  
Immune Checkpoint Inhibitors ◽  
Checkpoint Inhibitors ◽  
Model System ◽  
Main Risk Factor ◽  
Common Cancer ◽  
Immunocompetent Mice

AbstractHead and neck squamous cell carcinoma (HNSCC) is the sixth most common cancer worldwide. Tobacco use is the main risk factor for HNSCC, and tobacco-associated HNSCCs have poor prognosis and response to available treatments. Recently approved anti-PD-1 immune checkpoint inhibitors showed limited activity (≤20%) in HNSCC, highlighting the need to identify new therapeutic options. For this, mouse models that accurately mimic the complexity of the HNSCC mutational landscape and tumor immune environment are urgently needed. Here, we report a mouse HNSCC model system that recapitulates the human tobacco-related HNSCC mutanome, in which tumors grow when implanted in the tongue of immunocompetent mice. These HNSCC lesions have similar immune infiltration and response rates to anti-PD-1 (≤20%) immunotherapy as human HNSCCs. Remarkably, we find that >70% of HNSCC lesions respond to intratumoral anti-CTLA-4. This syngeneic HNSCC mouse model provides a platform to accelerate the development of immunotherapeutic options for HNSCC.

scholarly journals Novel syngeneic animal model of tobacco-associated oral cancer reveals the activity of in situ anti-CTLA-4

2019 ◽  
Author(s):  
Zhiyong Wang ◽  
Victoria H. Wu ◽  
Michael M. Allevato ◽  
Mara Gilardi ◽  
Yudou He ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Animal Model ◽  
Poor Prognosis ◽  
Immune Checkpoint Inhibitors ◽  
Checkpoint Inhibitors ◽  
Model System ◽  
Main Risk Factor ◽  
Common Cancer ◽  
Immunocompetent Mice

AbstractHead and neck squamous cell carcinoma (HNSCC) is the sixth most common cancer worldwide. Tobacco use is the main risk factor for HNSCC, and tobacco-associated HNSCCs have poor prognosis and response to available treatments. Recently approved anti-PD-1 immune checkpoint inhibitors showed limited activity (≤20%) in HNSCC, highlighting the need to identify new therapeutic options. For this, mouse models that accurately reflect the complexity of the HNSCC mutational landscape and tumor immune environment are urgently needed. Here, we report the first mouse HNSCC model system that recapitulates the human tobacco-related HNSCC mutanome, in which tumors grow when implanted in the tongue of immunocompetent mice. These HNSCC lesions have similar immune infiltration and response rates to anti-PD-1 (≤20%) immunotherapy as human HNSCCs. Remarkably, we found that >70% of HNSCC lesions respond to intratumoral anti-CTLA-4. This syngeneic HNSCC mouse model provides a platform for the development of novel immunotherapeutic options for HNSCC.

scholarly journals Neoadjuvant immunotherapy in resectable head and neck cancer: oral cavity carcinoma as a potential research model

2021 ◽  
Vol 13 ◽  
pp. 175883592098406
Author(s):  
Vanesa Gutiérrez Calderón ◽  
Alexandra Cantero González ◽  
Laura Gálvez Carvajal ◽  
Yolanda Aguilar Lizarralde ◽  
Antonio Rueda Domínguez
Keyword(s):  
Squamous Cell Carcinoma ◽  
Oral Cavity ◽  
Cell Carcinoma ◽  
Head And Neck ◽  
Surgical Resection ◽  
Squamous Cell ◽  
Immune Checkpoint ◽  
Immune Checkpoint Inhibitors ◽  
Checkpoint Inhibitors ◽  
Research Model

Squamous cell carcinoma of oral cavity (OCSCC) accounts for approximately 25% of cases of head and neck squamous cell carcinoma (HNSCC). Tobacco and alcohol consumption are the main risk factors for both cancers. Surgical resection, combined with adjuvant radiotherapy or radiochemotherapy in patients with high risk of relapse, is the key element in management in the initial stages. However, despite the availability of aggressive multidisciplinary treatments, advanced resectable OCSCC carries poor prognosis; only half of the patients are disease-free 5 years after the surgery. Immunotherapy based on the use of immune checkpoint inhibitors has been proven to be effective in a wide variety of tumours, including recurrent and metastatic HNSCC. These positive results resulted in investigations into its effectiveness in earlier stages of the disease with OCSCC emerging as an interesting research model because of the accessible location of the tumours. This article reviews the potential advantages of emerging immunotherapeutic agents [mainly monoclonal antibodies against programmed cell death-1 ( PD-1) immune checkpoint inhibitors] as neoadjuvant treatment for OCSCC at locoregional stages as well as the ongoing clinical trials, challenges in evaluating tumour response, and possible predictive biomarkers of response with highlights regarding the role of oral microbiota as modulators of immune response. The efficacy and safety of anti- PD-1 drugs in these patients have been proven in preliminary trials. If there is a decrease in the relapse rate and an improvement in the overall survival after surgical resection in ongoing trials, preoperative immunotherapy may be established as a treatment option for patients with early stages of the disease.

Response to Immune Checkpoint Inhibitors in Recurrent or Metastatic Esophageal Squamous Cell Carcinoma May Be Affected by Tumor Sites

Oncology ◽  
2021 ◽  
Vol 99 (10) ◽  
pp. 652-658
Author(s):  
Jhe-Cyuan Guo ◽  
Chen-Yuan Lin ◽  
Chia-Chi Lin ◽  
Ta-Chen Huang ◽  
Ming-Yu Lien ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Esophageal Squamous Cell Carcinoma ◽  
Disease Control ◽  
Immune Checkpoint Inhibitors ◽  
Tumor Response ◽  
Liver Tumors ◽  
Checkpoint Inhibitors ◽  
Recist 1.1 ◽  
Organ Specific ◽  
Heterogeneous Tumor

<b><i>Introduction:</i></b> Heterogeneous tumor response has been reported in cancer patients treated with immune checkpoint inhibitors (ICIs). This study investigated whether the tumor site is associated with the response to ICIs in patients with recurrent or metastatic esophageal squamous cell carcinoma (ESCC). <b><i>Methods:</i></b> Patients with ESCC who had measurable tumors in the liver, lung, or lymph node (LN) according to the response evaluation criteria in solid tumors (RECIST) 1.1 and received ICIs at 2 medical centers in Taiwan were enrolled. In addition to RECIST 1.1, tumor responses were determined per individual organ basis according to organ-specific criteria modified from RECIST 1.1. Fisher test or χ<sup>2</sup> test was used for statistical analysis. <b><i>Results:</i></b> In total, 37 patients were enrolled. The overall response rate per RECIST 1.1 was 13.5%. Measurable tumors in the LN, lung, and liver were observed in 26, 17, and 13 patients, respectively. The organ-specific response rates were 26.9%, 29.4%, and 15.4% for the LN, lung, and liver tumors, respectively (<i>p</i> = 0.05). The organ-specific disease control rates were 69.2%, 52.9%, and 21.1% for the LN, lung, and liver tumors, respectively (<i>p</i> = 0.024). Five (27.8%) among 18 patients harboring at least 2 involved organs had heterogeneous tumor response. <b><i>Conclusion:</i></b> The response and disease control to ICIs may differ in ESCC tumors located at different metastatic sites, with a lesser likelihood of response and disease control in metastatic liver tumors than in tumors located at the LNs and lung.

scholarly journals Immune checkpoint inhibitors in sinonasal squamous cell carcinoma

Oral Oncology ◽  
2020 ◽  
Vol 109 ◽  
pp. 104776
Author(s):  
Jong Chul Park ◽  
William C. Faquin ◽  
Julia Durbeck ◽  
Daniel L. Faden
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Immune Checkpoint ◽  
Immune Checkpoint Inhibitors ◽  
Checkpoint Inhibitors

scholarly journals Risk factors for cancer-associated thrombosis in patients undergoing treatment with immune checkpoint inhibitors

2019 ◽  
Vol 38 (4) ◽  
pp. 1200-1206 ◽  
Author(s):  
Yosuke Ando ◽  
Takahiro Hayashi ◽  
Reiko Sugimoto ◽  
Seira Nishibe ◽  
Kaori Ito ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Heart Disease ◽  
Anticancer Agents ◽  
Immune Checkpoint ◽  
Odds Ratio ◽  
Immune Checkpoint Inhibitors ◽  
Checkpoint Inhibitors ◽  
History Of ◽  
Cancer Associated Thrombosis

SummaryPurpose Anticancer agents are known to increase cancer-associated thrombosis (CAT) onset. CAT onset rate is reported to be 1.92% in cisplatin-based therapy, 6.1% in paclitaxel plus ramucirumab combination therapy, and 11.9% in bevacizumab monotherapy. Because immune checkpoint inhibitors (ICIs) cause a sudden increase in T cell number, an association between administration of these drugs and increase in CAT incidence is likely. However, the extent to which ICI administration affects CAT incidence remains unclear. Further, risk factors for CAT incidence have not yet been identified. The present study investigated CAT incidence and associated risk factors in patients receiving ICI. Methods Patients administered nivolumab or pembrolizumab at Fujita Health University Hospital from April 2017 to March 2018 were enrolled. We collected retrospective data regarding age, sex, cancer type, BMI, medical history, laboratory data at treatment initiation, medications, and computed tomography (CT) interpretations from electronic medical records. Results We identified 122 eligible participants from 135 patients receiving nivolumab or pembrolizumab. Ten patients (8.2%) developed CAT. A history of venous thromboembolism (VTE) or arterial thromboembolism (ATE) was a risk factor for CAT incidence (odds ratio: 6.36, P = 0.039). A history of heart disease may be a risk factor for CAT incidence (odds ratio 6.56, P = 0.052). Significantly higher usage of antiplatelet and anticoagulant therapy was noted in patients who developed CAT (60%) than in those who did not (13.4%, p < 0.01). Conclusion High (8.2%) CAT incidence during ICI administration suggested that ICI is not associated with a lower blood clot risk than other anticancer agents investigated in previous studies. For patients with VTE, ATE, or heart disease history, it is crucial to consider the possibility of CAT even with antiplatelet therapy.

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