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adoptive cell transfer

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https://www.readbyqxmd.com/read/28436934/biopolymers-codelivering-engineered-t-cells-and-sting-agonists-can-eliminate-heterogeneous-tumors
#1
Tyrel T Smith, Howell F Moffett, Sirkka B Stephan, Cary F Opel, Amy G Dumigan, Xiuyun Jiang, Venu G Pillarisetty, Smitha P S Pillai, K Dane Wittrup, Matthias T Stephan
Therapies using T cells that are programmed to express chimeric antigen receptors (CAR T cells) consistently produce positive results in patients with hematologic malignancies. However, CAR T cell treatments are less effective in solid tumors for several reasons. First, lymphocytes do not efficiently target CAR T cells; second, solid tumors create an immunosuppressive microenvironment that inactivates T cell responses; and third, solid cancers are typified by phenotypic diversity and thus include cells that do not express proteins targeted by the engineered receptors, enabling the formation of escape variants that elude CAR T cell targeting...
April 24, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28436759/the-roles-of-micrornas-in-spinal-cord-injury
#2
Zhongju Shi, Hengxing Zhou, Lu Lu, Xueying Li, Zheng Fu, Jun Liu, Yi Kang, Zhijian Wei, Bin Pan, Lu Liu, Xiaohong Kong, Shiqing Feng
BACKGROUND AND PURPOSE: Spinal cord injury (SCI) involves serious damage that can result in abnormal or absent motor and sensory functions and a disruption of autonomic function, and a series of pathological reactions occur after the injury. As a type of small non-coding RNA, microRNAs (miRNAs) have been verified to inhibit gene expression via posttranscriptional regulation. This review mainly focuses on recent advances regarding the roles of miRNAs following SCI. METHODS: The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were adopted...
April 24, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/28432065/adoptive-t-cell-transfer-targets-viral-and-nonviral-tumor-antigens
#3
(no author information available yet)
Successful T-cell therapy targets nonviral tumor antigens in patients with HPV(+) cervical cancer.
April 21, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28430646/immunotherapeutic-target-expression-on-breast-tumors-can-be-amplified-by-hormone-receptor-antagonism-a-novel-strategy-for-enhancing-efficacy-of-targeted-immunotherapy
#4
Ritika Jaini, Matthew G Loya, Charis Eng
Immunotherapy has historically been successful in highly antigenic tumors but has shown limited therapeutic efficacy in non-antigenic tumors such as breast cancers. Our previous studies in autoimmunity have demonstrated that increased antigen load within a tissue enhances immune reactivity against it. We therefore hypothesized that enhancing expression of target proteins on breast tumors can increase efficacy of targeted immunotherapy. We hypothesized that antagonism of the estrogen receptor (ER) can increase expression of targets that are hormonally regulated and facilitate enhanced tumor recognition by targeted immunotherapy...
March 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28426686/reactive-oxygen-species-are-required-for-driving-efficient-and-sustained-aerobic-glycolysis-during-cd4-t-cell-activation
#5
Dana M Previte, Erin C O'Connor, Elizabeth A Novak, Christina P Martins, Kevin P Mollen, Jon D Piganelli
The immune system is necessary for protecting against various pathogens. However, under certain circumstances, self-reactive immune cells can drive autoimmunity, like that exhibited in type 1 diabetes (T1D). CD4+ T cells are major contributors to the immunopathology in T1D, and in order to drive optimal T cell activation, third signal reactive oxygen species (ROS) must be present. However, the role ROS play in mediating this process remains to be further understood. Recently, cellular metabolic programs have been shown to dictate the function and fate of immune cells, including CD4+ T cells...
2017: PloS One
https://www.readbyqxmd.com/read/28426455/digoxin-attenuates-murine-experimental-colitis-by-downregulating-th17-related-cytokines
#6
Shinya Tani, Ryosuke Takano, Satoshi Tamura, Shinji Oishi, Moriya Iwaizumi, Yasushi Hamaya, Kosuke Takagaki, Toshi Nagata, Shintaro Seto, Toshinobu Horii, Isao Kosugi, Toshihide Iwashita, Satoshi Osawa, Takahisa Furuta, Hiroaki Miyajima, Ken Sugimoto
BACKGROUND: Digoxin, a cardiac glycoside used for the treatment of heart failure, was reported to inhibit the retinoid-related orphan receptor gamma t (RORγt) and attenuate the severity of experimental autoimmune encephalomyelitis and arthritis in mice. However, the effects of digoxin in a mice model of inflammatory bowel disease have not been elucidated. METHODS: Colitis was induced in severe combined immunodeficiency mice by adoptive transfer of CD45RB CD4 T cells...
May 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28424681/the-spontaneous-autoimmune-neuromyopathy-in-icosl-nod-mice-is-cd4-t-cell-and-interferon-%C3%AE-dependent
#7
Claire Briet, Gwladys Bourdenet, Ute C Rogner, Chantal Becourt, Isabelle Tardivel, Laurent Drouot, Christophe Arnoult, Jean-Claude do Rego, Nicolas Prevot, Charbel Massaad, Olivier Boyer, Christian Boitard
Abrogation of ICOS/ICOS ligand (ICOSL) costimulation prevents the onset of diabetes in the non-obese diabetic (NOD) mouse but, remarkably, yields to the development of a spontaneous autoimmune neuromyopathy. At the pathological level, ICOSL(-/-) NOD mice show stronger protection from insulitis than their ICOS(-/-) counterparts. Also, the ICOSL(-/-) NOD model carries a limited C57BL/6 region containing the Icosl nul mutation, but, in contrast to ICOS(-/-) NOD mice, no gene variant previously reported as associated to NOD diabetes...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28420754/paper-of-note-in-science356-6334
#8
Annalisa M VanHook
This week's article highlights the contribution of T cell reactivity to nonviral antigens to the success of adoptive T cell transfer in treating a virus-driven cancer.
April 18, 2017: Science Signaling
https://www.readbyqxmd.com/read/28420668/hypercholesterolemia-induces-differentiation-of-regulatory-t-cells-in-the-liver
#9
Reiner K Mailer, Anton Gisterå, Konstantinos A Polyzos, Daniel F Ketelhuth, Göran K Hansson
Rationale: The liver is the central organ that responds to dietary cholesterol intake and facilitates the release and clearance of lipoprotein particles. Persistent hypercholesterolemia leads to immune responses against lipoprotein particles that drive atherosclerosis. However, the effect of hypercholesterolemia on hepatic T cell differentiation remains unknown. Objective: To investigate hepatic T cell subsets upon hypercholesterolemia. Methods and Results: We observed that hypercholesterolemia elevated the intrahepatic regulatory T (Treg) cell population and increased the expression of transforming growth factor beta 1 in the liver...
April 18, 2017: Circulation Research
https://www.readbyqxmd.com/read/28419818/local-group-2-innate-lymphoid-cells-promote-corneal-regeneration-after-epithelial-abrasion
#10
Jun Liu, Chengju Xiao, Hanqing Wang, Yunxia Xue, Dong Dong, Cuipei Lin, Fang Song, Ting Fu, Zhaorui Wang, Jiansu Chen, Hongwei Pan, Yangqiu Li, Dongqing Cai, Zhijie Li
Corneal injuries and infections are the leading cause of blindness worldwide. Thus, understanding the mechanisms that control healing of the damaged cornea is critical for the development of new therapies to promptly restore vision. Innate lymphoid cells (ILCs) are a recently identified heterogeneous cell population that has been reported to orchestrate immunity and promote tissue repair in the lungs and skin after injury. However, whether ILCs can modulate the repair process in the cornea remains poorly understood...
April 15, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28418996/mobilizing-immune-cells-with-exercise-for-cancer-immunotherapy
#11
Richard J Simpson, Austin B Bigley, Nadia Agha, Patrick J Hanley, Catherine M Bollard
Hematopoietic stem cell (HSC) transplantation and adoptive transfer immunotherapy are effective in treating blood cancers and post-transplant infections, but low circulating cell numbers in patients and donors is oftentimes a limiting factor. We postulate that a single exercise bout will increase the yield of patient and donor-derived HSC's and cytotoxic lymphocytes to improve this form of treatment for cancer patients.
April 17, 2017: Exercise and Sport Sciences Reviews
https://www.readbyqxmd.com/read/28415669/micro-rna-98-suppresses-interleukin-10-in-peripheral-b-cells-in-patient-post-cardio-transplantation
#12
Jiangping Song, Wenjun Su, Xiao Chen, Qian Zhao, Ningning Zhang, Mao-Gang Li, Ping-Chang Yang, Liqing Wang
The immune tolerance to the transplant heart survival is critical. Regulatory B cells are one of the major immune regulatory cell populations in the immune tolerance. Micro RNAs (miR) can regulate the activities of immune cells, such as the expression of interleukin (IL)-10 by B cells. This study tests a hypothesis that micro RNA (miR)-98 plays a role in the regulation of interleukin (IL)-10 expression in B cells (B10 cell) after heart transplantation. In this study, the peripheral blood samples were collected from patients before and after heart transplantation...
March 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28413216/uncompromised-nk-cell-activation-is-essential-for-virus-specific-ctl-activity-during-acute-influenza-virus-infection
#13
Yuan Liu, Jian Zheng, Yinping Liu, Liyan Wen, Lei Huang, Zheng Xiang, Kwok-Tai Lam, Aizhen Lv, Huawei Mao, Yu-Lung Lau, Wenwei Tu
Natural killer (NK) cells are indispensable components of both the innate and adaptive immune response. However, their precise roles in the cross-talk between innate and adaptive immunity during influenza virus infection remain controversial. By comparing NK cell dynamics and activity under a sub-lethal dose and high dose of influenza virus infection, we showed that influenza virus PR8 directly infected NK cells during natural infection, which was consistent with our previous findings obtained from an in vitro investigation of human NK cells...
April 17, 2017: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/28412297/dysferlinopathy-promotes-an-intramuscle-expansion-of-macrophages-with-a-cyto-destructive-phenotype
#14
Jea-Hyun Baek, Gina M Many, Frances J Evesson, Vicki R Kelley
Dysferlinopathies are a group of muscular dystrophies resulting from a genetic deficiency in Dysf. Macrophages, highly plastic cells capable of mediating tissue repair and destruction, are prominent within dystrophic skeletal muscles of dysferlinopathy patients. In this study, we hypothesized that Dysf-deficient muscle promotes recruitment, proliferation, and skewing of macrophages toward a cyto-destructive phenotype in dysferlinopathy. To track macrophage dynamics in dysferlinopathy, we adoptively transferred enhanced green fluorescent protein-labeled monocytes into Dysf-deficient BLA/J mice with age-related (2 to 10 months) muscle disease and Dysf-intact (C57BL/6 [B6]) mice...
April 13, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28411247/exosomal-microrna-transfer-into-macrophages-mediates-cellular-postconditioning
#15
Geoffrey de Couto, Romain Gallet, Linda Cambier, Ervin Jaghatspanyan, Nupur Makkar, James Frederick Dawkins, Benjamin P Berman, Eduardo Marbán
BACKGROUND: Cardiosphere-derived cells (CDCs) confer cardioprotection in acute myocardial infarction (MI) via distinctive macrophage (MΦ) polarization. Here we demonstrate that CDC-secreted exosomes (CDCexo) recapitulate the cardioprotective effects of CDC therapy known as cellular postconditioning. METHODS: Rats and pigs underwent MI induced by ischemia-reperfusion prior to intracoronary infusion of CDCexo, inert fibroblast exosomes (Fbexo; control), or vehicle. Two days later, infarct size was quantified...
April 14, 2017: Circulation
https://www.readbyqxmd.com/read/28410812/cd4-t-cells-support-establishment-of-rsv-specific-igg-and-iga-antibody-secreting-cells-in-the-upper-and-lower-murine-respiratory-tract-following-rsv-infection
#16
Robert E Sealy, Sherri L Surman, Julia L Hurwitz
The RSV vaccine field suffered a major set-back when children were vaccinated with a formalin-inactivated RSV vaccine (FI-RSV). Unexpectedly, the vaccinated children fared worse than unvaccinated children when they were naturally infected with RSV. Mouse models were then developed that implicated the CD4(+) T helper cell population as a contributor to adverse events. Today, the T cell is viewed with much caution in the RSV field, and its induction by vaccination is sometimes discouraged. Here we re-emphasize the beneficial role of the CD4(+) T cell...
April 11, 2017: Vaccine
https://www.readbyqxmd.com/read/28410303/personalized-therapy-tumor-antigen-discovery-for-adoptive-cellular-therapy
#17
Cassian Yee, Gregory A Lizee
Adoptive cell therapy using endogenous T cells involves the ex vivo isolation and expansion of antigen-specific T cells from the peripheral blood and is uniquely suited for validating and translating antigen discovery. Endogenous T-cell therapy does not require accessible tumor as a source of infiltrating T cells and is free of regulatory and logistical constraints associated with engineering T cells. Candidate epitope peptides identified through antigen discovery may be rapidly implemented as targets in clinical trials of endogenous T-cell therapy and even incorporated as an "ad hoc" approach to personalized treatment when autologous tumor is available...
March 2017: Cancer Journal
https://www.readbyqxmd.com/read/28410302/tumor-infiltrating-lymphocyte-therapy-and-neoantigens
#18
Paul F Robbins
The adoptive cell transfer (ACT) of autologous tumor-infiltrating lymphocytes has been shown to be effective at mediating tumor regression in more than half of patients with metastatic melanoma and in mediating long-term complete regression in approximately one fourth of all patients with this cancer. The success of this approach in patients with cholangiocarcinoma and colon cancer supports efforts to expand ACT therapies to treatment of patients bearing a wide array of cancer types. Recent improvements in deep sequencing of the patient cancers, combined with extensive immunological testing of autologous tumor-infiltrating lymphocytes, indicate that T cells targeting epitopes arising from nonsynonymous somatic mutations, termed neoantigens, play important roles in mediating many of the effective cancer immunotherapies seen in response to ACT...
March 2017: Cancer Journal
https://www.readbyqxmd.com/read/28409177/dataset-on-the-changes-of-neutrophils-treated-with-retinoic-acid
#19
Sanjeeb Shrestha, Shin-Yeong Kim, Young-Jin Yun, Jun-Kyu Kim, Jae Man Lee, Minsang Shin, Dong-Keun Song, Chang-Won Hong
The data presented in this article are related to the research article entitled "Retinoic acid induces hypersegmentation and enhances cytotoxicity of neutrophils against cancer cells" (S. Shrestha, S.Y. Kim, Y.J. Young, J.K. Kim, J.M. Lee, M. Shin, D.K. Song, C.W. Hong, 2017) [1]. This article complements the potential of retinoic acid to induce changes in effector function of human neutrophils. Here the datasets describe the rate of apoptosis, changes in numbers of nuclear lobes, and the expressions of surface markers in human neutrophils in presence or absence of retinoic acid...
June 2017: Data in Brief
https://www.readbyqxmd.com/read/28405496/il-12-il-15-and-il-18-pre-activated-nk-cells-target-resistant-t-cell-acute-lymphoblastic-leukemia-and-delay-leukemia-development-in-vivo
#20
Margherita Boieri, Aina Ulvmoen, Amanda Sudworth, Clare Lendrem, Matthew Collin, Anne M Dickinson, Lise Kveberg, Marit Inngjerdingen
NK cells have shown promise in therapy of hematological cancers, in particular against acute myeloid leukemia. In contrast, the more NK cell-resistant acute lymphoblastic leukemia (ALL) is difficult to treat with NK-cell-based therapies, and we hypothesized that pre-activation of NK cells could overcome this resistance. We show in pediatric and adult patients with T-cell ALL (T-ALL) perturbed NK cell effector functions at diagnosis. Using an in vivo rat model for T-ALL, Roser leukemia (RL), suppressed NK cell effector functions were observed...
2017: Oncoimmunology
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