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tumor infiltrating lymphocytes

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https://www.readbyqxmd.com/read/28323742/spontaneous-regression-of-bronchial-carcinoid-is-linked-to-a-brisk-tumor-lymphocytic-infiltrate
#1
Luca Roncati, Antonio Manenti, Francesco Piscioli, Teresa Pusiol, Giuseppe Barbolini
No abstract text is available yet for this article.
April 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28318336/are-tumor-infiltrating-lymphocytes-protagonists-or-background-actors-in-patient-selection-for-cancer-immunotherapy
#2
Federica Zito Marino, Paolo Antonio Ascierto, Giulio Rossi, Stefania Staibano, Marco Montella, Daniela Russo, Roberto Alfano, Alessandro Morabito, Gerardo Botti, Renato Franco
Tumor-infiltrating lymphocytes (TILs) are frequently observed in several tumors, reflecting the dynamic process of ''cancer immunoediting''. Prognostic and predictive values of TILs have been demonstrated in different cancers, proving their pivotal role in clinical outcome. In recent years, new therapies targeting immune checkpoint inhibitors, especially CTLA-4 and PD-1/PDL-1 pathways, have been introduced into clinical practice. In this context, TILs may even have a possible utility as a predictive biomarker for immunotherapy response...
March 20, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/28317871/insights-into-molecular-therapy-of-glioma-current-challenges-and-next-generation-blueprint
#3
REVIEW
Y Rajesh, Ipsita Pal, Payel Banik, Sandipan Chakraborty, Sachin A Borkar, Goutam Dey, Ahona Mukherjee, Mahitosh Mandal
Glioma accounts for the majority of human brain tumors. With prevailing treatment regimens, the patients have poor survival rates. In spite of current development in mainstream glioma therapy, a cure for glioma appears to be out of reach. The infiltrative nature of glioma and acquired resistance substancially restrict the therapeutic options. Better elucidation of the complicated pathobiology of glioma and proteogenomic characterization might eventually open novel avenues for the design of more sophisticated and effective combination regimens...
March 20, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28316215/-effect-of-preoperative-monocyte-lymphocyte-ratio-on-prognosis-of-patients-with-resectable-esophagogastric-junction-cancer
#4
W J Zhou, J Wu, X D Li, Q Wang, X F Ni, J T Jiang, M Ji, C P Wu
Objective: To investigate the associations between various blood test parameters including MLR (monocyte-lymphocyte ratio) and prognosis in post-operative esophagogastric junction cancer patients. Methods: We retrospectively studied the preoperative and postoperative data of 309 patients who underwent radical surgery for esophagogastric junction cancer. The relationship between MLR, neutrophil lymphocyte ratio (NLR), platelet-lymphocyte ratio (PLR) and overall survival (OS) was analyzed. Results: The cutoff values of MLR、NLR and PLR were 0...
March 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28315964/biological-predictors-of-radiosensitivity-in-head-and-neck-squamous-cell-carcinoma
#5
Mathias Fiedler, Florian Weber, Matthias G Hautmann, Frank Haubner, Torsten E Reichert, Christoph Klingelhöffer, Stephan Schreml, Johannes K Meier, Arndt Hartmann, Tobias Ettl
OBJECTIVES: The aim of this study is to investigate the influence of prognostic biomarkers on radiosensitivity and survival of advanced head and neck squamous cell carcinomas treated by primary (chemo)radiation. MATERIAL AND METHODS: The clinicopathological data and immunohistochemical staining of p16, c-Met, survivin, PD-1, and PD-L1 of 82 primarily (chemo)irradiated patients with head and neck squamous cell carcinoma were analyzed. Associations with local and locoregional radiation response, overall survival (OS), disease-free (DFS), and disease-specific survival (DSS) were assessed...
March 18, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28314962/pd-l1-expression-in-pancreatic-ductal-adenocarcinoma-is-a-poor-prognostic-factor-in-patients-with-high-cd8-tumor-infiltrating-lymphocytes-highly-sensitive-detection-using-phosphor-integrated-dot-staining
#6
So Yamaki, Hiroaki Yanagimoto, Koji Tsuta, Hironori Ryota, Masanori Kon
BACKGROUND: Pancreatic ductal adenocarcinoma (PDAC) has an extremely poor prognosis. For the development of more effective immunotherapies, it is first necessary to elucidate the immunological escape mechanisms. In this study, we applied our recently developed highly sensitive immunostaining method employing fluorescent phosphor-integrated dot (PID) nanoparticles to evaluate the prevalence of programmed death ligand 1 (PD-L1) in patients with PDAC. METHODS: This study included 42 patients with PDAC who underwent pancreatectomy...
March 18, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28314313/pd-l1-expression-confers-better-prognosis-in-locally-advanced-oral-squamous-cell-carcinoma
#7
Yasunao Kogashiwa, Masanori Yasuda, Hiroyuki Sakurai, Mitsuhiko Nakahira, Yoshie Sano, Kenji Gonda, Tetsuya Ikeda, Hitoshi Inoue, Kiyomi Kuba, Susumu Oba, Junichi Ishikawa, Yuichiro Enoki, Satoko Matsumura, Kazuhiko Minami, Yasuhiro Ebihara, Masashi Sugasawa
BACKGROUND/AIM: Clinical trials with therapies targeting immune checkpoint molecules have shown promising results in several tumor types. However, the predictive and prognostic values of these immunological factors for locally advanced oral squamous cell carcinomas (LAOSCC) remain unclear. Our purpose was to evaluate the expression and prognostic value of programmed cell death-ligand1 (PD-L1) and PD-L2 and to correlate their expression with the degree of infiltration by CD8(+) cells in LAOSCC...
March 2017: Anticancer Research
https://www.readbyqxmd.com/read/28306559/immunotherapy-a-new-treatment-paradigm-in-bladder-cancer
#8
Nicole N Davarpanah, Akira Yuno, Jane B Trepel, Andrea B Apolo
PURPOSE OF REVIEW: T-cell checkpoint blockade has become a dynamic immunotherapy for bladder cancer. In 2016, atezolizumab, an immune checkpoint inhibitor, became the first new drug approved in metastatic urothelial carcinoma (mUC) in over 30 years. In 2017, nivolumab was also approved for the same indication. This overview of checkpoint inhibitors in clinical trials focuses on novel immunotherapy combinations, predictive biomarkers including mutational load and neoantigen identification, and an evaluation of the future of bladder cancer immunotherapy...
March 16, 2017: Current Opinion in Oncology
https://www.readbyqxmd.com/read/28303311/-immunotherapy-of-cancer-with-checkpoint-inhibitors-not-only-in-malignant-melanoma
#9
A Neubauer
The newest weapon in cancer therapy is checkpoint inhibition, which is the result of basic immunology research. The success of this therapy is based on the fact that upon light microscopy, many solid tumors harbor lymphocytic cells infiltrating the tumor (TILs), and in many solid tumors, the presence of these TILs are prognostic. Ipilimumab was the first monoclonal antibody developed against a target present on T cells after becoming activated, CTLA-4. In malignant melanoma, ipilimumab showed its beneficial effect as compared to a placebo peptide...
March 16, 2017: Der Internist
https://www.readbyqxmd.com/read/28299466/development-of-oral-cancer-vaccine-using-recombinant-bifidobacterium-displaying-wilms-tumor-1-protein
#10
Koichi Kitagawa, Tsugumi Oda, Hiroki Saito, Ayame Araki, Reina Gonoi, Katsumi Shigemura, Yoshiko Hashii, Takane Katayama, Masato Fujisawa, Toshiro Shirakawa
Several types of vaccine-delivering tumor-associated antigens (TAAs) have been developed in basic and clinical research. Wilms' tumor 1 (WT1), identified as a gene responsible for pediatric renal neoplasm, is one of the most promising TAA for cancer immunotherapy. Peptide and dendritic cell-based WT1 cancer vaccines showed some therapeutic efficacy in clinical and pre-clinical studies but as yet no oral WT1 vaccine can be administrated in a simple and easy way. In the present study, we constructed a novel oral cancer vaccine using a recombinant Bifidobacterium longum displaying WT1 protein...
March 15, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28294486/pd-l1-expression-at-tumor-invasive-front-is-associated-with-emt-and-poor-prognosis-in-esophageal-squamous-cell-carcinoma
#11
Satoshi Tsutsumi, Hiroshi Saeki, Yuichiro Nakashima, Shuhei Ito, Eiji Oki, Masaru Morita, Yoshinao Oda, Shinji Okano, Yoshihiko Maehara
Programmed death-ligand 1 (PD-L1) plays a crucial role in the host immune system in cancer progression. The gene promoter region of PD-L1 also contains a binding site for ZEB1, a transcription factor related to epithelial-mesenchymal transition (EMT). The purpose of this study was to clarify the relationship between PD-L1 and EMT and its clinical importance in esophageal squamous cell carcinoma (ESCC). PD-L1 and ZEB1 expression at the tumor invasive front was examined by immunohistochemistry in resected specimens from 90 patients with ESCC who underwent surgery without preoperative therapy, and their expression and clinicopathological factors were compared...
March 14, 2017: Cancer Science
https://www.readbyqxmd.com/read/28291123/medullary-carcinoma-of-the-penis-a-distinctive-hpv-related-neoplasm-a-report-of-12-cases
#12
Sofía Cañete-Portillo, Omar Clavero, Diego F Sanchez, Arturo Silvero, Francisco Abed, Ingrid M Rodriguez, Gustavo Ayala, Laia Alemany, Nubia Munoz, Silvia de Sanjose, Wim Quint, Francesc X Bosch, Antonio L Cubilla
A third to half of penile invasive squamous cell carcinomas are human papillomavirus (HPV) related. Warty (condylomatous), warty-basaloid, and basaloid carcinomas are the most common subtypes associated with HPV. Less frequent are clear cell and lymphoepithelioma-like carcinomas. Here we report a novel penile tumor associated with HPV. Twelve cases were selected from 1010 penile carcinomas, part of an international HPV detection study conducted at the Institut Català d'Oncologia, Barcelona, Spain. Immunostaining with p16 was performed on all cases, and HPV-mRNA detection was also performed...
April 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28289861/expression-patterns-of-programmed-death-ligand-1-in-esophageal-adenocarcinomas-comparison-between-primary-tumors-and-metastases
#13
Bastian Dislich, Alexandra Stein, Christian A Seiler, Dino Kröll, Sabina Berezowska, Inti Zlobec, José Galvan, Julia Slotta-Huspenina, Axel Walch, Rupert Langer
Expression analysis of programmed death-ligand 1 (PD-L1) may be helpful in guiding clinical decisions for immune checkpoint inhibition therapy, but testing by immunohistochemistry may be hampered by heterogeneous staining patterns within tumors and expression changes during metastatic course. PD-L1 expression (clone SP142) was investigated in esophageal adenocarcinomas using tissue microarrays (TMA) from 112 primary resected tumors, preoperative biopsies and full slide sections from a subset of these cases (n = 24), corresponding lymph node (n = 55) and distant metastases (n = 17)...
March 13, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28289860/the-pd-l1-pd-1-pathway-promotes-dysfunction-but-not-exhaustion-in-tumor-responding-t-cells-from-pleural-effusions-in-lung-cancer-patients
#14
Heriberto Prado-Garcia, Susana Romero-Garcia, Alejandra Puerto-Aquino, Uriel Rumbo-Nava
Malignant pleural effusions are frequent in patients with advanced stages of lung cancer and are commonly infiltrated by lymphocytes and tumor cells. CD8+ T cells from these effusions have reduced effector functions. The programmed death receptor 1(PD-1)/programmed death ligand 1 (PD-L1) pathway is involved in T-cell exhaustion, and it might be responsible for T-cell dysfunction in lung cancer patients. Here, we show that PD-L1 is expressed on tumor cell samples from malignant effusions, on lung cancer cell lines, and, interestingly, on MRC-5 lung fibroblasts...
March 13, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28289852/tumor-infiltrating-lymphocytes-and-molecular-response-after-neoadjuvant-therapy-for-hr-her2-%C3%A2-breast-cancer-results-from-two-prospective-trials
#15
M V Dieci, A Frassoldati, D Generali, G Bisagni, F Piacentini, L Cavanna, K Cagossi, F Puglisi, A Michelotti, R Berardi, G Banna, A Goubar, G Ficarra, G Griguolo, Pierfranco Conte, V Guarneri
PURPOSE: The aim was to evaluate the role of tumor-infiltrating lymphocytes (TIL) in predicting molecular response after preoperative endocrine or cytotoxic treatment for HR+/HER2- patients who do not achieve a pathological complete response. METHODS: Stromal (Str) TIL were centrally evaluated on samples from diagnostic core-biopsies of HR+/HER2- patients included in two prospective randomized trials: the LETLOB trial (neoadjuvant endocrine-based treatment) and the GIOB trial (neoadjuvant chemotherapy-based treatment)...
March 13, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28287634/immune-microenvironment-of-gliomas
#16
Anna Gieryng, Dominika Pszczolkowska, Kacper A Walentynowicz, Wenson D Rajan, Bozena Kaminska
High-grade gliomas are rapidly progressing tumors of the central nervous system (CNS) with a very poor prognosis despite extensive resection combined with radiation and/or chemotherapy. Histopathological and flow cytometry analyses of human and rodent experimental gliomas revealed heterogeneity of a tumor and its niche, composed of reactive astrocytes, endothelial cells, and numerous immune cells. Infiltrating immune cells consist of CNS resident (microglia) and peripheral macrophages, granulocytes, myeloid-derived suppressor cells (MDSCs), and T lymphocytes...
March 13, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/28285968/histologic-factors-predicting-invasion-in-patients-with-ductal-carcinoma-in-situ-dcis-in-the-preoperative-core-biopsy
#17
Areej M Al Nemer
BACKGROUND: It is desirable to decrease the underestimation rate of invasion in cases diagnosed as ductal carcinoma in situ (DCIS) in breast core needle biopsy (CNB) in order to determine the appropriate candidates for axillary staging. The objective of this study is to identify the predictors of invasion in histology. METHODS AND RESULTS: Consecutive 92 CNB's were retrospectively evaluated. The upstaging rate was 47.8% after surgery. Among all the evaluated parameters, high nuclear grade, single architectural pattern, marked periductal lymphocytic infiltration, partial myoepithelial loss and the presence of foci suspicious of microinvasion were the significant predictors of invasion (two tailed p values 0...
February 24, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28285812/-a-case-report-of-chordoid-glioma-with-unusual-features-immunohistochemical-and-molecular-findings-and-differential-diagnoses
#18
Arnault Tauziède-Espariat, Gilles Robert, Patricia de Cremoux, Marc Polivka
We report the case of a 63-year-old healthy patient who was admitted for surgery of a suprasellar tumor with extension to the optic chiasm responsible of visual disturbance. Histopathological examination revealed a tumoral proliferation composed of epithelioid cells without atypia arranged in cords in a mucinous matrix surrounded by some lymphocytic inflammatory infiltrates. On immunohistochemistry, the neoplastic cells strongly expressed GFAP and CD34, a weak expression of EMA, an expression of TTF1 without immunoreactivity for brachyury...
March 9, 2017: Annales de Pathologie
https://www.readbyqxmd.com/read/28283662/exhaustion-associated-regulatory-regions-in-cd8-tumor-infiltrating-t-cells
#19
Giuliana P Mognol, Roberto Spreafico, Victor Wong, James P Scott-Browne, Susan Togher, Alexander Hoffmann, Patrick G Hogan, Anjana Rao, Sara Trifari
T-cell exhaustion is a progressive loss of effector function and memory potential due to persistent antigen exposure, which occurs in chronic viral infections and cancer. Here we investigate the relation between gene expression and chromatin accessibility in CD8(+) tumor-infiltrating lymphocytes (TILs) that recognize a model tumor antigen and have features of both activation and functional exhaustion. By filtering out accessible regions observed in bystander, nonexhausted TILs and in acutely restimulated CD8(+) T cells, we define a pattern of chromatin accessibility specific for T-cell exhaustion, characterized by enrichment for consensus binding motifs for Nr4a and NFAT transcription factors...
March 10, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28281220/the-multifaceted-roles-of-b-cells-in-solid-tumors-emerging-treatment-opportunities
#20
Nicole J Flynn, Rajasekharan Somasundaram, Kimberly M Arnold, Jennifer Sims-Mourtada
The influence of tumor infiltrating lymphocytes on tumor growth and response to therapy is becoming increasingly apparent. While much work has focused on the role of T cell responses in anti-tumor immunity, the role of B cells in solid tumors is much less understood. Tumor infiltrating B cells have been found in a variety of solid tumors, including breast, ovarian, prostate, melanoma, and colorectal cancer. The function of B cells in solid tumors is controversial, with many studies reporting a pro-tumor effect, while other studies demonstrate a role for B cells in the anti-tumor immune response...
March 9, 2017: Targeted Oncology
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