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https://www.readbyqxmd.com/read/29139122/vaccination-with-human-amniotic-epithelial-cells-confer-effective-protection-in-a-murine-model-of-colon-adenocarcinoma
#1
M Tabatabaei, N Mosaffa, R Ghods, S Nikoo, S Kazemnejad, M Khanmohammadi, E Mirzadeghan, A Mahmoudi, M R Bolouri, R Falak, B Keshavarzi, M Ramezani, A H Zarnani
In spite of being the star of therapeutic strategies for cancer treatment, the results of immunotherapeutic approaches are still far from expectations. In this regard, primary prevention of cancer using prophylactic cancer vaccines has gained considerable attention. The immunologic similarities between cancer development and placentation have helped researchers to unravel molecular mechanisms responsible for carcinogenesis and to take advantage of stem cells from reproductive organs to elicit robust anti-cancer immune responses...
November 15, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29138067/the-prognostic-effect-of-changes-in-tumor-stage%C3%A2-and-nodal-status-after-neoadjuvant-chemotherapy-in-each-primary-breast-cancer%C3%A2-subtype
#2
Naoki Hayashi, Yuko Takahashi, Naoko Matsuda, Hiroko Tsunoda, Atsushi Yoshida, Koyu Suzuki, Seigo Nakamura, Hideko Yamauchi
BACKGROUND: Although the prognostic value of pathologic complete response (pCR) after neoadjuvant chemotherapy (NAC) depends on the intrinsic subtype of breast cancer, it is not clear whether chemosensitivity itself, shown by a decreasing tumor burden after NAC, contributes to improved prognosis in primary breast cancer patients, especially in patients with non-pCR. The aim of this study was to assess the prognostic effect of changes in tumor stage or nodal status after NAC in each primary breast cancer subtype...
October 3, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/29137951/triple-negative-breast-cancer-stem-cells-and-african-ancestry
#3
REVIEW
Evelyn Jiagge, Dhananjay Chitale, Lisa A Newman
Triple-negative breast cancers (TNBC) are more common among African ancestry populations, such as African Americans and western, sub-Saharan Africans, compared to European ancestry populations. This phenotype prevalence contributes to breast cancer outcome disparities between African Americans and Caucasian Americans. Breast cancer stem cells represent the tumor subpopulation responsible for metastatic virulence and ongoing research seeks to characterize the extent to which TNBC versus non-TNBC stem cells may differ...
November 11, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/29137948/analysis-of-tumor-biology-to-advance-cancer-health-disparity-research
#4
REVIEW
Cheryl Jacobs Smith, Tsion Zewdu Minas, Stefan Ambs
Cancer mortality rates in the US continue to decline. Reductions in tobacco use, uptake of preventive measures, adoption of early detection methods, and better treatments have resulted in improved cancer outcomes for men and women. Despite this progress, some population groups continue to experience an excessive cancer burden when compared with other population groups. One of the most prominent cancer health disparities exists in prostate cancer. Prostate cancer mortality rates are highest among men of African ancestry when compared with other men, both in the US and globally...
November 11, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/29137299/tumor-expressed-immune-checkpoint-b7x-promotes-cancer-progression-and-antigen-specific-cd8-t-cell-exhaustion-and-suppressive-innate-immune-cells
#5
Kim C Ohaegbulam, Weifeng Liu, Hyungjun Jeon, Steven C Almo, Xingxing Zang
B7x (B7-H4 or B7S1) is a coinhibitory member of the B7 immune checkpoint ligand family that regulates immune function following ligation with its unknown cognate receptors. B7x has limited expression on normal tissues, but is up-regulated on solid human tumors to inhibit anti-tumor immunity and associates with poor clinical prognosis. We assessed the contribution of cytokine stimuli to induce surface B7x expression on cancer cells and the role of tumor-expressed B7x in a murine pulmonary metastasis model, and finally evaluated the potential interaction between B7x and Neuropilin-1, a suggested potential cognate receptor...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137294/immunoprevention-of-kras-driven-lung-adenocarcinoma-by-a-multipeptide-vaccine
#6
Jing Pan, Qi Zhang, Shizuko Sei, Robert H Shoemaker, Ronald A Lubet, Yian Wang, Ming You
Lung cancer remains the leading cause of cancer death worldwide. Mutations in KRAS are detected in up to 30% of lung cancer cases. No effective therapies specifically targeting mutant KRAS have been developed. Vaccination against KRAS mutants is one of the venues of active exploration. The present study evaluated both immunogenicity and antitumor efficacy of a newly formulated multipeptide vaccine targeting multiple epitopes of the KRAS molecule. The formulated vaccine contained top four peptides, which elicited the strongest immunologic response and showed 100% sequence homology between human and mouse...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29136303/chromosome-9-mutations-reported-absent-in-some-patients-with-basal-cell-carcinoma-nevus-syndrome
#7
S Shih, B A Urso, R Domozych, K M Updyke, A I Laughlin, J A Solomon
Basal Cell Carcinoma Nevus Syndrome (BCCNS), also known as Gorlin syndrome, is a rare autosomal dominant condition with a substantial disease burden, thought to occur secondary to chromosome 9 mutation evoking a Hedgehog (Hh) signaling aberration that leads to early development of numerous basal cell carcinomas (BCCs). Individuals with BCCNS also present with keratocystic odontogenic tumors, medulloblastomas, and palmar or plantar pits1. This condition demonstrates variable expressivity, leading to differing phenotypes, even within the same family2...
November 14, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29136257/risk-factors-for-pathological-fracture-and-metastatic-epidural-spinal-cord-compression-in-patients-with-spinal-metastases
#8
Catherine S Hibberd, Gerald M Y Quan
Vertebral pathological fracture and metastatic epidural spinal cord compression (MESCC) due to metastatic cancer inevitably cause pain, neurological deficit, impaired function, and decreased quality of life and are indications for surgery. In such cases, earlier surgical intervention has the potential to prevent permanent neurological deficit and disability and to maintain function and quality of life. Therefore, the aim of this study was to identify and evaluate risk factors for pathological fracture and MESCC in patients with spinal metastases...
November 11, 2017: Orthopedics
https://www.readbyqxmd.com/read/29133004/neuroendoscopic-treatment-of-cystic-craniopharyngiomas-a-case-series-with-systematic-review-of-the-literature
#9
Liverana Lauretti, Francois Yves Legninda Sop, Roberto Pallini, Eduardo Fernandez, Quintino Giorgio D'Alessandris
BACKGROUND: Total removal of craniopharyngiomas is burdened by high morbidity. In cases of a cystic or mixed craniopharyngioma, when the symptoms are caused by the cystic component of the tumor, a less invasive surgical approach aiming at cyst drainage may be recommended. Here we report our experience with intraventricular neuroendoscopy, describing our clear-cut surgical technique, and analyzing results in the context of literature data. METHODS: We reviewed the clinical data of 8 consecutive adult patients affected by cystic or mixed craniopharyngioma that were treated with intraventricular neuroendoscopy at our Institution in the last decade...
November 10, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29131763/immune-checkpoint-inhibitor-cancer-therapy-spectrum-of-imaging-findings
#10
Gary X Wang, Vikram Kurra, Justin F Gainor, Ryan J Sullivan, Keith T Flaherty, Susanna I Lee, Florian J Fintelmann
Immune checkpoint inhibitors are a new class of cancer therapeutics that have demonstrated striking successes in a rapid series of clinical trials. Consequently, these drugs have dramatically increased in clinical use since being first approved for advanced melanoma in 2011. Current indications in addition to melanoma are non-small cell lung cancer, head and neck squamous cell carcinoma, renal cell carcinoma, urothelial carcinoma, and classical Hodgkin lymphoma. A small subset of patients treated with immune checkpoint inhibitors undergoes an atypical treatment response pattern termed pseudoprogression: New or enlarging lesions appear after initiation of therapy, thereby mimicking tumor progression, followed by an eventual decrease in total tumor burden...
November 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29130938/ubiquitin-levels-the-next-target-against-gynecological-cancers
#11
Diane L Haakonsen, Michael Rape
Ubiquitylation is a tightly regulated process that is essential for appropriate cell survival and function, and the ubiquitin pathway has shown promise as a therapeutic target for several forms of cancer. In this issue of the JCI, Kedves and colleagues report the identification of a subset of gynecological cancers with repressed expression of the polyubiquitin gene UBB, which renders these cancer cells sensitive to further decreases in ubiquitin production by inhibition of the polyubiquitin gene UBC. Moreover, inducible depletion of UBC in mice harboring tumors with low UBB levels dramatically decreased tumor burden and prolonged survival...
November 13, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29130389/anti-cancer-effects-of-f16-a-novel-vascular-endothelial-growth-factor-receptor-specific-inhibitor
#12
Appu Rathinavelu, Khalid Alhazzani, Sivanesan Dhandayuthapani, Thanigaivelan Kanagasabai
Vascular endothelial growth factor receptor-2 is a dynamic target for therapeutic intervention in various types of cancers. This study was aimed to explore the anti-angiogenic activity of a novel vascular endothelial growth factor receptor-specific inhibitor named F16 in both in vitro and in vivo experimental models. This compound effectively reduced cell proliferation, tube formation, and migration of human umbilical vein endothelial cells in a concentration-dependent manner by directly inhibiting vascular endothelial growth factor binding and subsequent vascular endothelial growth factor receptor-2 phosphorylation...
November 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29129754/cd44-targeting-hyaluronic-acid-coated-lapatinib-nanocrystals-foster-the-efficacy-against-triple-negative-breast-cancer
#13
Satish Agrawal, Monika Dwivedi, Hafsa Ahmad, Sangappa Basanna Chadchan, Abhishek Arya, Roshan Sikandar, Shweta Kaushik, Kalyan Mitra, Rajesh Kumar Jha, Anil Kumar Dwivedi
Lapatinib (LPT) is an orally administered drug for the treatment of metastatic breast cancer. For expanding its therapeutic horizon, we have prepared its nanocrystals (LPT-NCs) that were subsequently coated with hyaluronic acid (HA) to produce LPT-HA-NCs. The detailed in-vitro and in-vivo investigation of LPT-HA-NCs showed the superior anticancer activity due to active targeting to CD44 receptors than its counterparts LPT-NCs and free LPT. In the triple negative 4T1 cells induced breast tumor bearing female Balb/C mice; LPT-HA-NCs not only increased the residence time of LPT, but also targeted the tumor, reduced the tumor burden, and increased overall survival...
November 9, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29129292/targeting-myeloid-cells-in-the-tumor-sustaining-microenvironment
#14
REVIEW
Jonathan Schupp, Franziska K Krebs, Niklas Zimmer, Emily Trzeciak, Detlef Schuppan, Andrea Tuettenberg
Myeloid cells are the most abundant cells in the tumor microenvironment (TME). The tumor recruits and modulates endogenous myeloid cells to tumor-associated macrophages (TAM), dendritic cells (DC), myeloid-derived suppressor cells (MDSC) and neutrophils (TAN), to sustain an immunosuppressive environment. Pathologically overexpressed mediators produced by cancer cells like granulocyte-macrophage colony-stimulating- and vascular endothelial growth factor induce myelopoiesis in the bone marrow. Excess of myeloid cells in the blood, periphery and tumor has been associated with tumor burden...
November 2, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/29127022/genetic-and-immune-profiles-of-solid-predominant-lung-adenocarcinoma-reveal-potential-immunotherapeutic-strategies
#15
Zhong-Yi Dong, Chao Zhang, Yu-Fa Li, Jian Su, Zhi Xie, Si-Yang Liu, Li-Xu Yan, Zhi-Hong Chen, Xue-Ning Yang, Jun-Tao Lin, Hai-Yan Tu, Jin-Ji Yang, Qing Zhou, Yue-Li Sun, Wen-Zhao Zhong, Yi-Long Wu
BACKGROUND: Subtype classification of lung adenocarcinoma (LUAD) divides different survivals and therapeutic vulnerabilities, while the underlying molecular mechanism is little to be known. This study sought to determine the genetic and immune profiles of histologic subtypes and identify the evidence for adjuvant immunotherapy. PATIENTS AND METHODS: We performed an integrated analysis on multidimensional data from a discovery set including cohorts of The Cancer Genome Atlas (TCGA) and the Broad set from the LUAD public database, and a validation set from the Guangdong Lung Cancer Institute (GLCI)...
November 7, 2017: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/29126425/hdac7-promotes-lung-tumorigenesis-by-inhibiting-stat3-activation
#16
Yubin Lei, Lingling Liu, Shujing Zhang, Shicheng Guo, Xiaoqing Li, Jiucun Wang, Bo Su, Yuchao Fang, Xiaofeng Chen, Hengning Ke, Wufan Tao
BACKGROUND: Lung cancer is the leading cause of cancer death worldwide. However, the molecular mechanisms underlying lung cancer development have not been fully understood. The functions of histone deacetylases (HDACs), a class of total eighteen proteins (HDAC1-11 and SIRT1-7 in mammals) that deacetylate histones and non-histone proteins, in cancers are largely unknown. METHODS: Hdac7 (+/-)/K-Ras mice and HDAC7-depleted human lung cancer cell lines were used as models for studying the function of Hdac7 gene in lung cancer...
November 10, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/29125877/impact-of-tumor-burden-on-prognostic-prediction-for-patients-with-terminal-stage-hepatocellular-carcinoma-a-nomogram-study
#17
Chia-Yang Hsu, Po-Hong Liu, Shu-Yein Ho, Yi-Hsiang Huang, Yun-Hsuan Lee, Yi-You Chiou, Ting-Hui Hsieh, Tom Fang, Ya-Ju Tsai, Ming-Chih Hou, Teh-Ia Huo
BACKGROUND: The recently proposed nomogram of Barcelona Clinic Liver Cancer (BCLC) lacks predictive accuracy for patients with stage D hepatocellular carcinoma (HCC). Tumor burden is crucial in prognostic prediction but is not included in the criteria of stage D HCC. This study aims to develop a nomogram with tumor burden as the core element for BCLC stage D patients. METHODS: A total of 386 patients were randomly grouped into derivation and validation sets (1:1 ratio)...
2017: PloS One
https://www.readbyqxmd.com/read/29123951/characterization-of-a-switchable-chimeric-antigen-receptor-platform-in-a-pre-clinical-solid-tumor-model
#18
Elham Pishali Bejestani, Marc Cartellieri, Ralf Bergmann, Armin Ehninger, Simon Loff, Michael Kramer, Johannes Spehr, Antje Dietrich, Anja Feldmann, Susann Albert, Martin Wermke, Michael Baumann, Mechthild Krause, Martin Bornhäuser, Gerhard Ehninger, Michael Bachmann, Malte von Bonin
The universal modular chimeric antigen receptor (UniCAR) platform redirects CAR-T cells using a separated, soluble targeting module with a short half-life. This segregation allows precise controllability and flexibility. Herein we show that the UniCAR platform can be used to efficiently target solid cancers in vitro and in vivo using a pre-clinical prostate cancer model which overexpresses prostate stem cell antigen (PSCA). Short-term administration of the targeting module to tumor bearing immunocompromised mice engrafted with human UniCAR-T cells significantly delayed tumor growth and prolonged survival of recipient mice both in a low and high tumor burden model...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29123422/neutrophil-derived-interleukin-16-in-premetastatic-lungs-promotes-breast-tumor-cell-seeding
#19
Kim Donati, Christelle Sépult, Natacha Rocks, Silvia Blacher, Catherine Gérard, Agnès Noel, Didier Cataldo
The premetastatic niche in distant organs prior to metastatic cell arrival emerged as an important step in the metastatic cascade. However, molecular mechanisms underlying this process are still poorly understood. In particular, whether neutrophil recruitment at a premetastatic stage promotes or inhibits metastatic cell seeding has to be clarified. We aimed at unraveling how neutrophil infiltration in lung parenchyma induced by the distant primary tumor influences the establishment of lung metastasis. Elevated neutrophil counts and IL-16 levels were found in premetastatic lungs in a syngenic mouse model using 4T1 tumor cells...
2017: Cancer Growth and Metastasis
https://www.readbyqxmd.com/read/29121062/loss-of-function-jak1-mutations-occur-at-high-frequency-in-cancers-with-microsatellite-instability-and-are-suggestive-of-immune-evasion
#20
Lee A Albacker, Jeremy Wu, Peter Smith, Markus Warmuth, Philip J Stephens, Ping Zhu, Lihua Yu, Juliann Chmielecki
Immune evasion is a well-recognized hallmark of cancer and recent studies with immunotherapy agents have suggested that tumors with increased numbers of neoantigens elicit greater immune responses. We hypothesized that the immune system presents a common selective pressure on high mutation burden tumors and therefore immune evasion mutations would be enriched in high mutation burden tumors. The JAK family of kinases is required for the signaling of a host of immune modulators in tumor, stromal, and immune cells...
2017: PloS One
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