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https://www.readbyqxmd.com/read/29057046/synthesis-and-pharmacological-evaluation-of-selective-histone-deacetylase-6-inhibitors-in-melanoma-models
#1
Maurício T Tavares, Sida Shen, Tessa Knox, Melissa Hadley, Zsófia Kutil, Cyril Bařinka, Alejandro Villagra, Alan P Kozikowski
Only a handful of therapies offer significant improvement in the overall survival in cases of melanoma, a cancer whose incidence has continued to rise in the past 30 years. In our effort to identify potent and isoform-selective histone deacetylase (HDAC) inhibitors as a therapeutic approach to melanoma, a series of new HDAC6 inhibitors based on the nexturastat A scaffold were prepared. The new analogues 4d, 4e, and 7b bearing added hydrophilic substituents, so as to establish additional hydrogen bonding on the rim of the HDAC6 catalytic pocket, exhibit improved potency against HDAC6 and retain selectivity over HDAC1...
October 12, 2017: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/29055949/membranous-and-cytoplasmic-expression-of-pd-l1-in-ovarian-cancer-cells
#2
Qiu-Xia Qu, Fang Xie, Qin Huang, Xue-Guang Zhang
BACKGROUND: Expression of programmed death-ligand 1 (PD-L1) on tumor cells represents a powerful immune evasion pathway, but the role of intracellular or cytoplasmic PD-L1 has not been investigated in ovarian cancer cells. METHODS: Flow cytometry (FCM), Real-time PCR (qPCR), immunohistochemistry (IHC) and western blot were used to determine the expression of PD-L1 in ovarian cancer cells. The cytokines detected in the tumor or tumor associated macrophage (TAM) were used to treat cancer cells...
October 20, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29054723/aberrant-frequency-of-il-35-producing-b-cells-in-colorectal-cancer-patients
#3
Ke Wang, Hui Gong, Rui Chai, Hang Yuan, Yanxia Chen, Jinlin Liu
BACKGROUND: The IL-10 dependent regulatory function of B cells had recently more and more investigated and play important roles in cancer immunity, however, beyond IL-10 whether other inhibitory cytokines play an important role in cancer is lacking. Here, we investigated the role of IL-35 producing B cells in colorectal cancer (CRC). METHODS: Thirty-two healthy controls (HC) and 49 untreated CRC patients were enrolled and the IL-35 producing B cells in the peripheral blood were investigated...
October 17, 2017: Cytokine
https://www.readbyqxmd.com/read/29050282/effective-antitumor-peptide-vaccines-can-induce-severe-autoimmune-pathology
#4
Hussein Sultan, Jimena Trillo-Tinoco, Paulo Rodriguez, Esteban Celis
Immunotherapy has shown a tremendous success in treating cancer. Unfortunately, this success is frequently associated with severe autoimmune pathology. In this study, we used the transgenic RIP-gp mouse model to assess the antitumor therapeutic benefit of peptide vaccination while evaluating the possible associated autoimmune pathology. We report that palmitoylated gp33-41 peptide and poly-IC adjuvant vaccine (BiVax) generated ∼ 5-10 % of antigen specific T cell responses in wild type and supposedly immune tolerant RIP-gp mice...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29045966/-immune-effects-of-specific-ctls-response-induced-by-dendritic-cells-pulsed-with-ny-eso-1-peptide
#5
J W Liu, X Lu, Z M Yang, L J Deng, L Yang
OBJECTIVE: To explore the potential of autologous dendritic cells (DCs) pulsed with caner/testis antigen NY-ESO-1 peptides in inducing specific cytotoxic T lymphocyte (CTLs) response and antineoplastic immune function of specific CTLs. METHODS: Fifteen patients with II to III stage positive HLA -A0201(+) and NY-ESO-1(+) were enrolled in the Cancer Hospital Chinese Academy of Medical Sciences on the basis of preclinical experiments from November 2014 to October 2015, and their peripheral blood mononuclear cells (PBMCs) and peripheral blood lymphocytes (PBLs) were isolated...
October 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29043842/the-protective-and-immunomodulatory-effects-of-fucoidan-against-7-12-dimethyl-benz-a-anthracene-induced-experimental-mammary-carcinogenesis-through-the-pd1-pdl1-signaling-pathway-in-rats
#6
Meilan Xue, Hui Liang, Qingjuan Tang, Chuanxing Xue, Xinjia He, Li Zhang, Zheng Zhang, Zhengyan Liang, Kang Bian, Lichen Zhang, Zhuxin Li
Fucoidan is a sulfated polysaccharide that is extracted from brown algae seaweed. This study was designed to evaluate the protective and immunomodulatory effects of dietary fucoidan on 7,12-dimethyl benz[a]anthracene (DMBA)-induced experimental mammary carcinogenesis in rats. Sixty Sprague-Dawley rats were randomly assigned to four equal groups: the control group (control group), the cancer model group (model group), and the F1 and F2 groups, which were fed fucoidan at concentrations of 200 and 400 mg/kg·body weight, respectively...
October 18, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/29042911/nalbuphine-analgesic-and-anti-inflammatory-effects-on-patients-undergoing-thoracoscopic-lobectomy-during-the-perioperative-period
#7
Yang Zhang, Qi Jiang, Tao Li
This study sought to investigate the analgesic effects of nalbuphine on patients undergoing thoracoscopic lobectomy during the perioperative period, as well as its effects on inflammatory cytokines. We selected 92 patients with early lung cancer who were admitted to Xiangyang No. 1 People's Hospital between January 2016 and December 2016. The patients were randomly divided into control and observation groups (n=46 each). All patients underwent thoracoscopic lobectomy, with those in the observation group receiving intravenous nalbuphine hydrochloride prior to induction (the control group received saline)...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29038249/anti-pd-1-antibody-treatment-promotes-clearance-of-persistent-cryptococcal-lung-infection-in-mice
#8
Jonathan A Roussey, Steven P Viglianti, Seagal Teitz-Tennenbaum, Michal A Olszewski, John J Osterholzer
Activation of immunomodulatory pathways in response to invasive fungi can impair clearance and promote persistent infections. The programmed cell death protein-1 (PD-1) signaling pathway inhibits immune effector responses against tumors, and immune checkpoint inhibitors that block this pathway are being increasingly used as cancer therapy. The objective of this study was to investigate whether this pathway contributes to persistent fungal infection and to determine whether anti-PD-1 Ab treatment improves fungal clearance...
October 16, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29038121/targeting-il-10-family-cytokines-for-the-treatment-of-human-diseases
#9
Xiaoting Wang, Kit Wong, Wenjun Ouyang, Sascha Rutz
Members of the interleukin (IL)-10 family of cytokines play important roles in regulating immune responses during host defense but also in autoimmune disorders, inflammatory diseases, and cancer. Although IL-10 itself primarily acts on leukocytes and has potent immunosuppressive functions, other family members preferentially target nonimmune compartments, such as tissue epithelial cells, where they elicit innate defense mechanisms to control viral, bacterial, and fungal infections, protect tissue integrity, and promote tissue repair and regeneration...
October 16, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/29037917/immunomodulation-after-radiofrequency-ablation-of-locally-advanced-pancreatic-cancer-by-monitoring-the-immune-response-in-10-patients
#10
Alessandro Giardino, Giulio Innamorati, Stefano Ugel, Omar Perbellini, Roberto Girelli, Isabella Frigerio, Paolo Regi, Filippo Scopelliti, Giovanni Butturini, Salvatore Paiella, Matilde Bacchion, Claudio Bassi
OBJECTIVE/BACKGROUND: RFA of pancreatic cancer has been demonstrated to be feasible and safe with a positive impact on survival. The aim was to investigate whether an immune reaction is activated after locally advanced pancreatic cancer (LAPC) ablation. METHODS: Peripheral Blood samples were obtained preoperatively and on post-operative days 3-30. Evaluated parameters were: cells [CD4(+), CD8(+) and activated subsets, T-Reg, Monocytes, myeloid and plasmocytoid Dendritic cells (mDC and pDC)] and cytokines [Interleukin (IL)-6, Stromal-cells derived factor (SDF)-1, IL-1β, Tumour-Necrosis Factor (TNF)-α, Interferon (IFN)-γ, Vascular Endothelial Growth Factor (VEGF), chemokine (C-C motif) ligand 5 (CCL-5), Transforming-Growth Factor (TGF)-β]...
September 27, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29037125/signature-of-genetic-associations-in-oral-cancer
#11
Vishwas Sharma, Amrita Nandan, Amitesh Kumar Sharma, Harpreet Singh, Mausumi Bharadwaj, Dhirendra Narain Sinha, Ravi Mehrotra
Oral cancer etiology is complex and controlled by multi-factorial events including genetic events. Candidate gene studies, genome-wide association studies, and next-generation sequencing identified various chromosomal loci to be associated with oral cancer. There is no available review that could give us the comprehensive picture of genetic loci identified to be associated with oral cancer by candidate gene studies-based, genome-wide association studies-based, and next-generation sequencing-based approaches...
October 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29034589/involvement-of-local-renin-angiotensin-system-in-immunosuppression-of-tumor-microenvironment
#12
Kenta Nakamura, Tomonori Yaguchi, Gaku Ohmura, Asuka Kobayashi, Naoshi Kawamura, Takashi Iwata, Yukiko Kiniwa, Ryuhei Okuyama, Yutaka Kawakami
To improve the current cancer immunotherapies, strategies to modulate various immunosuppressive cells including myeloid derived suppressor cells (MDSCs) which were shown to be negative factors in the immune-checkpoint blockade therapy, need to be developed. In this study, we have evaluated the role of local renin-angiotensin system (RAS) in the tumor immune-microenvironment using murine models bearing tumor cell lines in which RAS was not involved in their proliferation and angiogenetic ability. Administration of angiotensin II receptor blockers (ARBs) to C57BL/6 mice bearing murine colon cancer cell line MC38 resulted in significant enhancement of tumor antigen gp70 specific T cells...
October 16, 2017: Cancer Science
https://www.readbyqxmd.com/read/29033844/syngeneic-b16f10-melanoma-causes-cachexia-and-impaired-skeletal-muscle-strength-and-locomotor-activity-in-mice
#13
Fabrício A Voltarelli, Fernando T Frajacomo, Camila de Souza Padilha, Mayra T J Testa, Paola S Cella, Diogo F Ribeiro, Donizete X de Oliveira, Luciana C Veronez, Gabriela S Bisson, Felipe A Moura, Rafael Deminice
Muscle wasting has been emerging as one of the principal components of cancer cachexia, leading to progressive impairment of work capacity. Despite early stages melanomas rarely promotes weight loss, the appearance of metastatic and/or solid tumor melanoma can leads to cachexia development. Here, we investigated the B16F10 tumor-induced cachexia and its contribution to muscle strength and locomotor-like activity impairment. C57BL/6 mice were subcutaneously injected with 5 × 10(4) B16F10 melanoma cells or PBS as a Sham negative control...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29029504/interleukin-10-gene-rs1800896-polymorphism-is-associated-with-the-risk-of-prostate-cancer
#14
Hao Chen, Jilei Tang, Nan Shen, Kewei Ren
Numerous studies have uncovered the association of Interleukin-10 (IL-10) gene rs1800896 polymorphism with the risk of prostate cancer (PCa); however, their conclusions were inconsistent. Therefore, we conducted this meta-analysis to evaluate the role of IL-10 rs1800896 polymorphism in the risk of PCa. 16 eligible studies in 15 articles involving 6,301 cases and 6,510 controls were identified by researching PubMed, Google, CNKI, and EMBASE up to April 1, 2017. Our results revealed that IL-10 rs1800896 polymorphism was associated with the decreased risk of PCa under the homozygous model...
September 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29028090/a-comparative-study-on-inflammatory-factors-and-immune-functions-of-lung-cancer-and-pulmonary-ground-glass-attenuation
#15
C-Y Liu, W-G Xie, S Wu, J-W Tian, J Li
OBJECTIVE: To compare the inflammatory factors and immune functions of patients with lung cancer and pulmonary ground-glass attenuation. PATIENTS AND METHODS: A total of 108 patients with pulmonary sarcoidosis treated in our hospital were selected and randomly divided into lung cancer group (Group A, n=32), diffuse ground-glass nodule group (Group B, n=35) and solitary ground-glass nodule group (Group C, n=41) according to the diagnosis results. Levels of inflammatory factors, tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), interleukin-6 (IL-6) and interleukin-10 (IL-10), in serum were detected via enzyme-linked immunosorbent assay (ELISA); the T-lymphocyte subset levels (CD3+, CD4+, CD8+ and CD4+/CD8+) in the immune system of patients in the three groups were detected using the flow cytometer; the levels of immunoglobulins, immunoglobulin G (IgG), immunoglobulin A (IgA) and immunoglobulin M (IgM), were detected via immunoturbidimetric assay...
September 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29026308/role-of-poly-%C3%AE%C2%B5-caprolactone-lipid-core-nanocapsules-on-melanoma-neutrophil-crosstalk
#16
Carine C Drewes, Aline de Cs Alves, Cristina B Hebeda, Isabela Copetti, Silvana Sandri, Mayara K Uchiyama, Koiti Araki, Silvia S Guterres, Adriana R Pohlmann, Sandra H Farsky
Metastatic melanoma is an aggressive cancer with increasing incidence and limited therapies in advanced stages. Systemic neutrophilia or abundant neutrophils in the tumor contribute toward its worst prognosis, and the interplay of cancer and the immune system has been shown in tumor development and metastasis. We recently showed the in vivo efficacy of poly(ε-caprolactone) lipid-core nanocapsule (LNC) or LNC loaded with acetyleugenol (AcE-LNC) to treat B16F10-induced melanoma in mice. In this study, we investigated whether LNC or AcE-LNC toxicity could involve modifications on crosstalk of melanoma cells and neutrophils...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29025731/macrophage-depletion-using-clodronate-liposomes-decreases-tumorigenesis-and-alters-gut-microbiota-in-the-aom-dss-mouse-model-of-colon-cancer
#17
Jackie E Bader, Reilly T Enos, Kandy T Velazquez, Meredith S Carson, Mitzi Nagarkatti, Prakash S Nagarkatti, Ioulia Chatzistamou, J Mark Davis, James A Carson, Cory Robinson, E Angela Murphy
We examined the role of macrophages in inflammation associated colorectal cancer (CRC). Given the emerging evidence on immune-microbiota interactions in CRC, we also sought to examine the interaction between macrophages and gut microbiota. To induce CRC, male C57BL/6 mice (n=32) received a single injection of azoxymethane (AOM) followed by three cycles of dextran sodium sulfate (DSS) supplemented water at weeks 1, 4, and 7, respectively. Prior to the final DSS cycle (week 7) and twice weekly until sacrifice, mice (n=16/group) received either 200μl i...
October 12, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29022575/gefitinib-inhibits-m2-like-polarization-of-tumor-associated-macrophages-in-lewis-lung-cancer-by-targeting-the-stat6-signaling-pathway
#18
Muhammad Tariq, Jie-Qiong Zhang, Gui-Kai Liang, Qiao-Jun He, Ling Ding, Bo Yang
M2-like polarized tumor-associated macrophages (TAMs) play a pivotal role in promoting cancer cell growth, invasion, metastasis and angiogenesis. The identification of M2-like TAMs during tumor progression is an attractive approach for cancer therapy. In this study, we investigated the relevance of macrophage polarization and the antitumor effect of gefitinib in Lewis Lung cancer (LLC) in vitro and in vivo. Gefitinib at a concentration below 2.5 μmol/L did not cause significant growth inhibition on LLC and RAW 264...
October 12, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29017822/sub-optimal-primary-surgery-leads-to-unfavorable-immunological-changes-in-ovarian-cancer-patients
#19
Marek Nowak, Ewa Głowacka, Przemysław Lewkowicz, Małgorzata Banasik, Krzysztof Szyłło, Kinga Zimna, Katarzyna Bednarska, Magdalena Klink
Primary cytoreduction, followed by chemotherapy, is a standard treatment of patients with epithelial ovarian cancer (EOC). However, the effectiveness of this treatment depend on various elements e.g. type of operation. It is accepted that optimal surgery correlates with longer survival of patients. The other element, an efficiency of immune system after surgical intervention although important is less elucidated. The aim of this study was to establish the impact of optimal and sub-optimal operation on immunological status of EOC patients regarding also their overall survival (OS)...
October 5, 2017: Immunobiology
https://www.readbyqxmd.com/read/29016954/association-of-interleukin-6-and-other-cytokines-with-self-reported-pain-in-prostate-cancer-patients-receiving-chemotherapy
#20
Sarah Al-Mazidi, Karim Farhat, TaoufiK Nedjadi, Adeel Chaudhary, Osman Zin Al-Abdin, Danny Rabah, Mohammad Al-Zoghaibi, Laiche Djouhri
Background: Pain is a common and dose-limiting side effect of many potentially curative cancer chemotherapeutic agents. This chemotherapy-induced pain (CIP) affects the quality of life of cancer patients and survivors and hampers the optimal clinical management of chemotherapy in cancer patients. The underlying mechanisms remain largely unknown, but changes in levels of cytokines/chemokines may contribute to the pathophysiology of CIP. Objective: This retrospective study was aimed at examining whether plasma levels of various cytokines change in prostate cancer patients after chemotherapy treatment and whether such changes (if any) are associated with their pain intensity...
June 22, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
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