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https://www.readbyqxmd.com/read/28454118/simultaneous-exposure-to-fc%C3%AE-r-and-fc%C3%AE-r-on-monocytes-and-macrophages-enhances-antitumor-activity-in-vivo
#1
Bingyu Li, Lijun Xu, Fei Tao, Kun Xie, Zhiqiang Wu, You Li, Jie Li, Kaiming Chen, Chenyu Pi, Andrew Mendelsohn, James W Larrick, Hua Gu, Jianmin Fang
Therapeutic antibodies are effective for tumor immunotherapy and exhibit prominent clinical effects. All approved antibody therapeutics utilize IgG as the molecular format. Antibody-dependent cell-mediated cytotoxicity (ADCC) is a key mechanism for tumor cell killing by antibodies. For IgG antibodies, ADCC depends on FcγR-expressing cells, such as natural killer (NK) cells. However, in patients with a high tumor burden, antibody therapeutics may lose efficacy owing to exhaustion of FcγR-expressing effector cells as well as the inhibitory effects of certain FcγRs on effector cells...
April 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28454104/rna-sequencing-based-cell-proliferation-analysis-across-19-cancers-identifies-a-subset-of-proliferation-informative-cancers-with-a-common-survival-signature
#2
Ryne C Ramaker, Brittany N Lasseigne, Andrew A Hardigan, Laura Palacio, David S Gunther, Richard M Myers, Sara J Cooper
Despite advances in cancer diagnosis and treatment strategies, robust prognostic signatures remain elusive in most cancers. Cell proliferation has long been recognized as a prognostic marker in cancer, but the generation of comprehensive, publicly available datasets allows examination of the links between cell proliferation and cancer characteristics such as mutation rate, stage, and patient outcomes. Here we explore the role of cell proliferation across 19 cancers (n = 6,581 patients) by using tissue-based RNA sequencing data from The Cancer Genome Atlas Project and calculating a 'proliferative index' derived from gene expression associated with Proliferating Cell Nuclear Antigen (PCNA) levels...
April 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28454088/overexpression-of-a-functional-calcium-sensing-receptor-dramatically-increases-osteolytic-potential-of-mda-mb-231-cells-in-a-mouse-model-of-bone-metastasis-through-epiregulin-mediated-osteoprotegerin-downregulation
#3
Boudot Cédric, Hénaut Lucie, Thiem Ursula, Geraci Sandra, Galante Mariangela, Saldanha Paulo, Saidak Zuzana, Six Isabelle, Clézardin Philippe, Kamel Said, Mentaverri Romuald
INTRODUCTION AND AIMS: Osteolytic bone metastases are observed in advanced cases of breast cancer. In vitro data suggest that the activity of the calcium-sensing receptor (CaSR) expressed by metastatic cells could potentiate their osteolytic potential. This study aimed to demonstrate in vivo the involvement of the CaSR in breast cancer cells osteolytic potential and to identify potential targets linked to CaSR activity. METHODS AND RESULTS: MDA-MB-231 stably transfected with plasmids containing either a full-length wild-type CaSR (CaSR-WT), or a functionally inactive dominant negative mutant (CaSR-DN) or an empty vector (EV) were intratibially injected into Balb/c-Nude mice...
April 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28446544/cellular-expression-of-pd-l1-in-the-peripheral-blood-of-lung-cancer-patients-is-associated-with-worse-survival
#4
Daniel J Boffa, Ryon P Graf, Michelle C Salazar, Jessica Hoag, David Lu, Rachel Krupa, Jessica Louw, Lyndsey Dugan, Yipeng Wang, Mark Landers, Mahipal Suraneni, Stephanie B Greene, Samir Makani, Marisa Magaña, Lyudmila Bazhenova, Ryan V Dittamore, Jorge Nieva
BACKGROUND: Lung cancer treatment has become increasingly dependent upon invasive biopsies to profile tumors for personalized therapy. Recently, tumor expression of PD-L1 has gained interest as a potential predictor of response to immunotherapy. Circulating biomarkers present an opportunity for tumor profiling without the risks of invasive procedures. We characterized PD-L1 expression within populations of nucleated cells in the peripheral blood of lung cancer patients in hopes of expanding the role of liquid biopsy in this setting...
April 26, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28446466/landscape-of-combination-immunotherapy-and-targeted-therapy-to-improve-cancer-management
#5
Leandro M Colli, Mitchell J Machiela, Han Zhang, Timothy Myers, Lea Jessop, Olivier Delattre, Kai Yu, Stephen J Chanock
Cancer treatments composed of immune checkpoint inhibitors and oncogene-targeted drugs might improve cancer management, but there has been little investigation of their combined potential as yet. To estimate the fraction of cancer cases that might benefit from such combination therapy, we conducted an exploratory study of cancer genomic data sets to determine the proportion with somatic mutation profiles amenable to either immunotherapy or targeted therapy. We surveyed 13,349 genomic profiles from public databases for cases with specific mutations targeted by current agents or a burden of exome-wide non-synonymous mutations (NsM) that exceeds a proposed threshold for response to checkpoint inhibitors...
April 26, 2017: Cancer Research
https://www.readbyqxmd.com/read/28445967/lactobacillus-casei-zhang-and-vitamin-k2-prevent-intestinal-tumorigenesis-in-mice-via-adiponectin-elevated-different-signaling-pathways
#6
Yong Zhang, Chen Ma, Jie Zhao, Haiyan Xu, Qiangchuan Hou, Heping Zhang
The incidence of colon cancer has increased considerably and the intestinal microbiota participate in the development of colon cancer. We showed that the L. casei Zhang or vitamin K2 (Menaquinone-7) intervention significantly alleviated intestinal tumor burden in mice. This was associated with increased serum adiponectin levels in both treatments. But osteocalcin level was only increased by L. casei Zhang. Furthermore, the anti-carcinogenic actions of L. casei Zhang were mediated by hepatic Chloride channel-3(CLCN3)/Nuclear Factor Kappa B(NF-κB) and intestinal Claudin15/Chloride intracellular channel 4(CLIC4)/Transforming Growth Factor Beta(TGF-β) signaling, while the vitamin K2 effect involved a hepatic Vitamin D Receptor(VDR)-phosphorylated AMPK signaling pathway...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445948/combined-mek-and-pi3-kinase-inhibition-reveals-synergy-in-targeting-thyroid-cancer-in-vitro-and-in-vivo
#7
Oussama ElMokh, Dorothée Ruffieux-Daidié, Matthias A Roelli, Amandine Stooss, Wayne A Phillips, Jürg Gertsch, Matthias S Dettmer, Roch-Philippe Charles
Anaplastic thyroid cancers and radioiodine resistant thyroid cancer are posing a major treat since surgery combined with Iodine131 therapy is ineffective on them. Small-molecule inhibitors are presenting a new hope for patients, but often lead to drug resistance in many cancers. Based on the major mutations found in thyroid cancer, we propose the combination of a MEK inhibitor and a Pi3'-kinase inhibitor in pre-clinical models. We used human thyroid cancer cell lines and genetically engineered double mutant BRAFV600E PIK3CAH1047R mice to evaluate the effect of both inhibitors separately or in combination in terms of proliferation and signaling in vitro; tumor burden, histology, cell death induction and tumor markers expression in vivo...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445298/barcelona-clinic-liver-cancer-stage-c-hepatocellular-carcinoma-a-novel-approach-to-subclassification-and-treatment
#8
Chung Hwan Jun, Jae Hyun Yoon, Eunae Cho, Sang Soo Shin, Sung Bum Cho, Hee Joon Kim, Chang Hwan Park, Hyun Soon Kim, Sung Kyu Choi, Jong Sun Rew
Barcelona clinic liver cancer-stage C (BCLC-C) encompasses a broad spectrum of tumor burdens, liver function statuses, patient prognoses, and treatment strategies. Currently, sorafenib is the only recommended treatment for patients with BCLC-C and outcomes remain suboptimal. The aims of this study were to assess the heterogeneity of BCLC-C hepatocellular carcinoma (HCC) cases, propose a novel subclassification for these cases, and suggest optimal treatment strategies other than sorafenib.We retrospectively analyzed 196 consecutive BCLC-C HCC patients who were diagnosed and treated between January 2008 and December 2015...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28443588/solitary-fibrous-tumors-of-chest-another-look-with-the-oncologic-perspective
#9
Mert Saynak, Nirmal K Veeramachaneni, Jessica L Hubbs, Dilruba Okumuş, Lawrence B Marks
B Solitary fibrous tumors (SFT) are mesenchymal lesions that arise at a variety of sites, most commonly the pleura. Most patients are asymptomatic at diagnosis, with lesions being detected incidentally. Nevertheless, some patients present due to symptoms from local tumor compression (eg. of the airways and pulmonary parenchyma). Furthermore, radiological methods are not always conclusive in making a diagnosis, and thus, pathological analysis is often required. In the past three decades, immunohistochemical techniques have provided a gold standard in SFT diagnosis...
April 6, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28442269/enhanced-adhesion-and-in-situ-photothermal-ablation-of-cancer-cells-in-surface-functionalized-electrospun-microfiber-scaffold-with-graphene-oxide
#10
Nicolò Mauro, Cinzia Scialabba, Giovanna Pitarresi, Gaetano Giammona
The physicochemical characteristics of a biomaterial surface highly affect the interaction with living cells. Recently, much attention has been focused on the adhesion properties of functional biomaterials toward cancer cells, since is expected to control metastatic spread of a tumor, which is related to good probability containing the progression of disease burden. Here, we designed an implantable poly(caprolactone)-based electrospun microfiber scaffold, henceforth PCLMF-GO, to simultaneously capture and kill cancer cells by tuning physicochemical features of the hybrid surface through nitrogen plasma activation and hetero-phase graphene oxide (GO) covalent functionalization...
April 22, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28441796/role-of-dietary-crocin-in-in-vivo-melanoma-tumor-remission
#11
Hamid A Bakshi, Faruck Lukmanul Hakkim, Smitha Sam, Farideh Javid
Background: Melanoma is a deadly form of malignancy. Early diagnosis might pave the way to cure but its aggressive nature leads to rapid dissemination and colonization of distant organs. Dietary herbs may play a significant role in prevention of cancer. In this study, we tested anti-tumor efficacy of the Crocus sativus derived active constituent crocin, well established to have anti-cancer properties in different cancer models by our group and other groups and other groups. Notably, crocin is reported to exert anti-proliferative effect on melanoma cells (B16F10) in vitro...
March 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28440530/comorbidity-in-patients-undergoing-surgery-for-lung-cancer-do-we-have-an-adequate-tool-to-assess-it
#12
Marta Lembicz, Piotr Gabryel, Beata Brajer-Luftmann, Wojciech Dyszkiewicz, Halina Batura-Gabryel
INTRODUCTION: In the recent years comorbidity has been discussed as a factor affecting therapeutic decisions, the course of treatment, and prognosis of patients with lung cancer. The aim of the study was 1. to evaluate the occurrence of comorbidities in patients with lung cancer undergoing surgery, and 2. to investigate the utility of Charlson Comorbidity Index (CCI) and Simplified Comorbidity Score (SCS) for preoperative evaluation of Polish patients with lung cancer. MATERIAL AND METHODS: The retrospective study included 476 patients with lung cancer, who underwent surgical treatment...
2017: Advances in Respiratory Medicine
https://www.readbyqxmd.com/read/28440321/association-of-comorbid-disease-burden-at-diagnosis-with-higher-tumor-grade-in-men-with-non-metastatic-prostate-cancer
#13
T J Daskivich, C J Dru, D Skarecky, T Ahlering, S J Freedland
BACKGROUND: While older age is associated with higher tumor grade, it is unknown whether comorbid disease burden has a similar, independent association. We sought to evaluate the impact of comorbid disease burden on tumor grade at diagnosis as indicated by biopsy Gleason score. METHODS: We conducted an observational cohort study of 1260 men newly diagnosed with non-metastatic prostate cancer from 1998 to 2004 at two Veterans Affairs Medical Centers. Multivariable ordinal and multinomial logistic regression were used to evaluate the association between Charlson Comorbidity Index score and biopsy Gleason score...
April 25, 2017: Prostate Cancer and Prostatic Diseases
https://www.readbyqxmd.com/read/28439491/translating-new-data-to-the-daily-practice-in-second-line-treatment-of-renal-cell-carcinoma-the-role-of-tumor-growth-rate
#14
EDITORIAL
Enrique Grande, Olga Martínez-Sáez, Pablo Gajate-Borau, Teresa Alonso-Gordoa
The therapeutic options for patients with metastatic renal cell carcinoma (mRCC) have completely changed during the last ten years. With the sequential use of targeted therapies, median overall survival has increased in daily practice and now it is not uncommon to see patients surviving kidney cancer for more than four to five years. Once treatment fails with the first line targeted therapy, head to head comparisons have shown that cabozantinib, nivolumab and the combination of lenvatinib plus everolimus are more effective than everolimus alone and that axitinib is more active than sorafenib...
April 10, 2017: World Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28437737/changes-in-regulatory-t-cells-in-patients-with-ovarian-cancer-undergoing-surgery-preliminary-results
#15
Meng Wu, Xian Chen, Jianfang Lou, Shuping Zhang, Xiaojie Zhang, Lei Huang, Ruihong Sun, Peijun Huang, Shiyang Pan, Fang Wang
Regulatory T cells (Treg) suppress immune responses in patients with cancer. Surgery is the most effective therapeutic strategy for ovarian cancer (OC). However, the interplay between the Treg population and surgical resection remains unclear. 61 patients with OC who received no prior treatment were enrolled in the study. Treg percentages were characterized from peripheral blood mononuclear cells. We investigated CD4(+)CD25(+), CD4(+)CD25(+)Foxp3(+), CD8(+)CD28(-), and CD8(+)Foxp3(+) Tregs in OC patients and their postoperative changes using flow cytometry...
April 21, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28435890/gene-expression-profile-of-human-cytokines-in-response-to-burkholderia-pseudomallei-infection
#16
Shivankari Krishnananthasivam, Harindra Darshana Sathkumara, Enoka Corea, Mohan Natesan, Aruna Dharshan De Silva
Melioidosis is an underreported infectious disease, caused by the Gram-negative bacterium Burkholderia pseudomallei. Understanding the disease susceptibility and pathogenesis is crucial for developing newer diagnostic and therapeutic strategies for this life-threatening infection. In this study, we aimed to analyze the gene expression levels of important cytokines in melioidosis patients and establish useful correlates with disease biomarkers compared to cases of sepsis infection caused by other pathogens and healthy individuals...
March 2017: MSphere
https://www.readbyqxmd.com/read/28435294/patient-considerations-in-metastatic-colorectal-cancer-role-of-panitumumab
#17
REVIEW
Jane E Rogers
Epidermal growth factor receptor (EGFR) is overexpressed in many malignancies, including colorectal cancer (CRC), making EGFR an attractive treatment option. Panitumumab and cetuximab, monoclonal antibodies (mAbs) directed at EGFR, are both currently utilized in the management of metastatic CRC (mCRC). Through the development of these agents in mCRC, key issues surrounding each mAbs use have been revealed. These key issues include negative patient outcome avoidance when determining use, the economic burden with high-cost medication, predictive biomarkers, tumor location, patient geographic location, patient quality of life, and the prevention of debilitating adverse effects...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28435287/serum-galectin-1-in-patients-with-multiple-myeloma-associations-with-survival-angiogenesis-and-biomarkers-of-macrophage-activation
#18
Morten Nørgaard Andersen, Maja Ludvigsen, Niels Abildgaard, Irma Petruskevicius, Rikke Hjortebjerg, Mette Bjerre, Bent Honoré, Holger J Møller, Niels F Andersen
Galectin-1 (Gal-1) is known to regulate cell signaling within the immune system and may be a target for new anticancer immune therapy. In patients with chronic lymphocytic leukemia (CLL) and classical Hodgkin lymphoma (cHL), high levels of Gal-1 within the tumor microenvironment were associated with worse disease state or poor outcome. Gal-1 can be secreted from cells by an unknown mechanism, and levels in blood samples were associated with high tumor burden and worse disease state in cHL and CLL patients. However, serum levels of Gal-1 have never been investigated in patients with multiple myeloma (MM)...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28434400/role-of-modern-immunotherapy-in-gastrointestinal-malignancies-a-review-of-current-clinical-progress
#19
REVIEW
Zin W Myint, Gaurav Goel
Gastrointestinal (GI) cancers are a group of highly aggressive malignancies with a huge disease burden worldwide. There is clearly a significant unmet need for new drugs and therapies to further improve the treatment outcomes of GI malignancies. Immunotherapy is a novel treatment strategy that is emerging as an effective and promising treatment option against several types of cancers. CTLA-4 and PD-1 are critical immune checkpoint molecules that negatively regulate T cell activation via distinct mechanisms...
April 24, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28432840/detection-of-egfr-mutations-in-patients-with-non-small-cell-lung-cancer-by-high-resolution-melting-comparison-with-other-methods
#20
Carlos Martínez-Carretero, Fernando Iguaz Pascual, Antonio Rus, Ivan Bernardo
BACKGROUND: The discovery of mutations in the epidermal growth factor receptor gene (EGFR) related to the clinical response to tyrosine kinase inhibitors, has transformed the management of non-small cell lung cancer (NSCLC). Several methods have been developed for determination of mutations in EGFR, with different sensitivity and potential ability to detect a different number of mutations. METHODS: We developed a screening method by high resolution melting (HRM) to detect EGFR mutations, and compared the results of 123 fixed in formalin and paraffin embedded (FFPE) tumor tissue samples with the detection of mutations by allele-specific PCR...
April 22, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
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