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T cell regeneration clinical trials

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https://www.readbyqxmd.com/read/29759309/efficacy-of-stem-cells-in-maxillary-sinus-floor-augmentation-systematic-review-and-meta-analysis
#1
REVIEW
T C Niño-Sandoval, B C Vasconcelos, S L D Moraes, C A A Lemos, E P Pellizzer
The aim of this review was to test the hypothesis of no difference in the efficacy of bone regeneration when using stem cells in maxillary sinus floor augmentation surgery in comparison to other grafts. Nine randomized clinical trials and one follow-up study involving human subjects were identified through a search of the PubMed/MEDLINE, Scopus, Cochrane, and Web of Science databases, supplemented by a hand search. No significant difference between groups was found for the implant survival rate, increase in bone height, marginal bone loss following implant placement, or new bone formation...
May 11, 2018: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29682604/the-hair-follicle-an-underutilized-source-of-cells-and-materials-for-regenerative-medicine
#2
Mehrdad T Kiani, Claire A Higgins, Benjamin D Almquist
The hair follicle is one of only two structures within the adult body that selectively degenerates and regenerates, making it an intriguing organ to study and use for regenerative medicine. Hair follicles have been shown to influence wound healing, angiogenesis, neurogenesis, and harbor distinct populations of stem cells; this has led to cells from the follicle being used in clinical trials for tendinosis and chronic ulcers. In addition, keratin produced by the follicle in the form of a hair fiber provides an abundant source of biomaterials for regenerative medicine...
April 9, 2018: ACS Biomaterials Science & Engineering
https://www.readbyqxmd.com/read/29450596/-strategies-for-a-regenerative-therapy-of-hearing-loss-german-version
#3
REVIEW
M Diensthuber, T Stöver
Despite impressive technical progress in the field of conventional hearing aids and implantable hearing systems, the hopes for the treatment of inner ear diseases such as hearing loss and tinnitus have become increasingly directed toward regenerative therapeutic approaches. This review discusses the currently most promising strategies for hair cell regeneration in the inner ear to treat hearing loss, including stem cell-based, gene transfer-based, and pharmacological interventions. Furthermore, previous milestones and ground-breaking work in this scientific field are identified...
March 2018: HNO
https://www.readbyqxmd.com/read/29388165/cloning-and-expansion-of-antigen-specific-t-cells-using-ips-cell-technology-development-of-off-the-shelf-t-cells-for-the-use-in-allogeneic-transfusion-settings
#4
REVIEW
Hiroshi Kawamoto, Kyoko Masuda, Seiji Nagano, Takuya Maeda
Recent advances in adoptive immunotherapy using cytotoxic T lymphocytes (CTLs) have led to moderate therapeutic anti-cancer effects in clinical trials. However, a critical issue, namely that CTLs collected from patients are easily exhausted during expansion culture, has yet to be solved. To address this issue, we have been developing a strategy which utilizes induced pluripotent stem cell (iPSC) technology. This strategy is based on the idea that when iPSCs are produced from antigen-specific CTLs, CTLs regenerated from such iPSCs should show the same antigen specificity as the original CTLs...
March 2018: International Journal of Hematology
https://www.readbyqxmd.com/read/29346320/c-phycocyanin-and-phycocyanobilin-as-remyelination-therapies-for-enhancing-recovery-in-multiple-sclerosis-and-ischemic-stroke-a-preclinical-perspective
#5
REVIEW
Giselle Pentón-Rol, Javier Marín-Prida, Viviana Falcón-Cama
Myelin loss has a crucial impact on behavior disabilities associated to Multiple Sclerosis (MS) and Ischemic Stroke (IS). Although several MS therapies are approved, none of them promote remyelination in patients, limiting their ability for chronic recovery. With no available therapeutic options, enhanced demyelination in stroke survivors is correlated with a poorer behavioral recovery. Here, we show the experimental findings of our group and others supporting the remyelinating effects of C-Phycocyanin (C-PC), the main biliprotein of Spirulina platensis and its linked tetrapyrrole Phycocyanobilin (PCB), in models of these illnesses...
January 18, 2018: Behavioral Sciences
https://www.readbyqxmd.com/read/29318324/strategies-for-a-regenerative-therapy-of-hearing-loss
#6
REVIEW
M Diensthuber, T Stöver
Despite impressive technical progress in the field of conventional hearing aids and implantable hearing systems, the hopes for the treatment of inner ear diseases such as hearing loss and tinnitus have become increasingly directed toward regenerative therapeutic approaches. This review discusses the currently most promising strategies for hair cell regeneration in the inner ear to treat hearing loss, including stem cell-based, gene transfer-based, and pharmacological interventions. Furthermore, previous milestones and ground-breaking work in this scientific field are identified...
January 2018: HNO
https://www.readbyqxmd.com/read/29247724/anti-hbv-response-to-toll-like-receptor-7-agonist-gs-9620-is-associated-with-intrahepatic-aggregates-of-t-cells-and-b-cells
#7
Li Li, Vivian Barry, Stephane Daffis, Congrong Niu, Erik Huntzicker, Dorothy M French, Igor Mikaelian, Robert E Lanford, William E Delaney, Simon P Fletcher
BACKGROUND & AIMS: GS-9620, an oral agonist of toll-like receptor 7, is in clinical development for the treatment of chronic hepatitis B (CHB). GS-9620 was previously shown to induce prolonged suppression of serum viral DNA and antigens in the chimpanzee and woodchuck models of CHB. Herein, we investigated the immunomodulatory mechanisms underlying these antiviral effects. METHODS: Archived liver biopsies and paired peripheral blood mononuclear cell samples from a previous chimpanzee study were analyzed by RNA sequencing, quantitative reverse transcription PCR, immunohistochemistry (IHC) and in situ hybridization (ISH)...
May 2018: Journal of Hepatology
https://www.readbyqxmd.com/read/29075900/clinical-importance-of-il-22-cascade-in-ibd
#8
REVIEW
Atsushi Mizoguchi, Arisa Yano, Hidetomo Himuro, Yui Ezaki, Takayuki Sadanaga, Emiko Mizoguchi
IL-22 is a relatively new cytokine that is characterized by several unique biological properties. In the intestines, the effect of IL-22 is restricted mainly to non-lymphoid cells such as epithelial cells. Interestingly, the expression pattern and major cellular source of IL-22 have distinct difference between large and small intestines. IL-22 possesses an ability to constitutively activate STAT3 for promoting epithelial cell regeneration and reinforcing mucosal barrier integrity through stimulating the expression of anti-bacterial peptide and mucins...
October 26, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28811169/tissue-engineered-extracellular-matrices-ecms-in-urology-evolution-and-future-directions
#9
REVIEW
N F Davis, E M Cunnane, F J O'Brien, J J Mulvihill, M T Walsh
Autologous gastrointestinal tissue has remained the gold-standard reconstructive biomaterial in urology for >100 years. Mucus-secreting epithelium is associated with lifelong metabolic and neuromechanical complications when implanted into the urinary tract. Therefore, the availability of biocompatible tissue-engineered biomaterials such as extracellular matrix (ECM) scaffolds may provide an attractive alternative for urologists. ECMs are decellularised, biodegradable membranes that have shown promise for repairing defective urinary tract segments in vitro and in vivo by inducing a host-derived tissue remodelling response after implantation...
February 2018: Surgeon: Journal of the Royal Colleges of Surgeons of Edinburgh and Ireland
https://www.readbyqxmd.com/read/28674697/cell-free-vascular-grafts-recent-developments-and-clinical-potential
#10
Sindhu Row, Ana Santandreu, Daniel D Swartz, Stelios T Andreadis
Recent advances in vascular tissue engineering have led to the development of cell-free grafts that are available off-the-shelf for on demand surgery. Challenges associated with cell-based technologies including cell sourcing, cell expansion and long-term bioreactor culture motivated the development of completely cell-free vascular grafts. These are based on decellularized arteries, decellularized cultured cell-based tissue engineered grafts or biomaterials functionalized with biological signals that promote in situ tissue regeneration...
March 2017: Technology
https://www.readbyqxmd.com/read/28515001/in-vitro-extracellular-matrix-accumulation-of-nasal-and-articular-chondrocytes-for-intervertebral-disc-repair
#11
S Vedicherla, C T Buckley
Chondrocyte based regenerative therapies for intervertebral disc repair such as Autologous Disc Cell Transplantation (ADCT, CODON) and allogeneic juvenile chondrocyte implantation (NuQu(®), ISTO Technologies) have demonstrated good outcomes in clinical trials. However concerns remain with the supply demand reconciliation and issues surrounding immunoreactivity which exist for allogeneic-type technologies. The use of stem cells is challenging due to high growth factor requirements, regulatory barriers and differentiation towards a stable phenotype...
May 8, 2017: Tissue & Cell
https://www.readbyqxmd.com/read/28326848/autologous-hematopoietic-stem-cells-for-refractory-crohn-s-disease
#12
REVIEW
C A DiNicola, A Zand, D W Hommes
Autologous hematopoietic stem cells are gaining ground as an effective and safe treatment for treating severe refractory Crohn's disease (CD). Autologous hematopoietic stem cell therapy (AHSCT) induces resetting of the immune system by de novo regeneration of T-cell repertoire and repopulation of epithelial cells by bone-marrow derived cells to help patients achieve clinical and endoscopic remission. Areas covered: Herein, the authors discuss the use of AHSCT in treating patients with CD. Improvements in disease activity have been seen in patients with severe autoimmune disease and patients with severe CD who underwent AHSCT for a concomitant malignant hematological disease...
May 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/28257800/human-mesenchymal-stem-cell-educated-macrophages-are-a-distinct-high-il-6-producing-subset-that-confer-protection-in-graft-versus-host-disease-and-radiation-injury-models
#13
Myriam N Bouchlaka, Andrea B Moffitt, Jaehyup Kim, John A Kink, Debra D Bloom, Cassandra Love, Sandeep Dave, Peiman Hematti, Christian M Capitini
Mesenchymal stem cells (MSCs) have immunosuppressive and tissue repair properties, but clinical trials using MSCs to prevent or treat graft-versus-host disease (GVHD) have shown mixed results. Macrophages (MØs) are important regulators of immunity and can promote tissue regeneration and remodeling. We have previously shown that MSCs can educate MØs toward a unique anti-inflammatory immunophenotype (MSC-educated MØs [MEMs]); however, their implications for in vivo models of inflammation have not been studied yet...
June 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/27994167/immune-reconstitution-after-allogeneic-hematopoietic-stem-cell-transplantation-time-to-t-up-the-thymus
#14
REVIEW
Mohammed S Chaudhry, Enrico Velardi, Florent Malard, Marcel R M van den Brink
The success of allogeneic hematopoietic stem cell transplantation, a key treatment for many disorders, is intertwined with T cell immune reconstitution. The thymus plays a key role post allogeneic hematopoietic stem cell transplantation in the generation of a broad but self-tolerant T cell repertoire, but it is exquisitely sensitive to a range of insults during the transplant period, including conditioning regimens, corticosteroids, infections, and graft-versus-host disease. Although endogenous thymic repair is possible it is often suboptimal, and there is a need to develop exogenous strategies to help regenerate the thymus...
January 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27956736/transplantation-of-human-embryonic-stem-cells-in-patients-with-multiple-sclerosis-and-lyme-disease
#15
Geeta Shroff
BACKGROUND Multiple sclerosis (MS) is an inflammatory and neurodegenerative disease in which the myelin sheath of nerve cells is damaged. It can cause delayed neurologic symptoms similar to those seen in Lyme disease (LD) patients. Thymus derived T-cells (myelin reactive) migrate to the blood brain barrier and stimulate an inflammatory cascade in the central nervous system. Cell based therapies play an important role in treating neurological diseases such as MS and LD. CASE REPORT Human embryonic stem cell (hESC) therapy was used to treat two patients with both MS and LD...
December 13, 2016: American Journal of Case Reports
https://www.readbyqxmd.com/read/27941288/regulation-of-adoptive-immunotherapy
#16
Yozo Nakazawa, Satoshi Suzuki, Nobuhiro Nishio
Adoptive immunotherapy using chimeric antigen receptor (CAR)-modified T cells has provided a major breakthrough in the treatment of hematological malignancies. In Japan, it is expected that CD19 CAR-T cell therapy will be introduced earlier in clinical B cell malignancy settings and/or that a novel CAR-T cell therapy will be developed for non-B cell malignancies. The "Act on the Safety of Regenerative Medicine" and the "Revised Pharmaceutical Affairs Act" were promulgated in 2014. Both Acts were very important to the introduction and development of CAR-T therapy in Japan...
2016: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/27862115/pediatric-acute-liver-failure-of-undetermined-cause-a-research-workshop
#17
REVIEW
Estella M Alonso, Simon P Horslen, Edward M Behrens, Edward Doo
Pediatric acute liver failure (PALF) is a potentially devastating condition that occurs in previously healthy children of all ages and frequently leads to a rapid clinical deterioration. An identified cause for liver injury is lacking in approximately 30% of cases. Children with undetermined diagnosis have lower spontaneous survival and higher rates of transplantation and death than other diagnostic groups. A single-day workshop sponsored by the National Institute of Diabetes and Digestive and Kidney Diseases brought together clinicians and basic scientists to integrate aligned research findings and develop a foundation for new mechanistic studies and future treatment trials...
March 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/27433343/niacin-promotes-revascularization-and-recovery-of-limb-function-in-diet-induced-obese-mice-with-peripheral-ischemia
#18
Dominic K T Pang, Zengxuan Nong, Brian G Sutherland, Cynthia G Sawyez, Debra L Robson, Jelena Toma, J Geoffrey Pickering, Nica M Borradaile
Niacin can reduce vascular disease risk in individuals with metabolic syndrome, but in light of recent large randomized controlled trials outcomes, its biological actions and clinical utility remain controversial. Niacin can improve endothelial function, vascular inflammation, and vascular regeneration, independent of correcting dyslipidemia, in various lean rodent models of vascular injury. Here, we tested whether niacin could directly improve endothelial cell angiogenic function during combined exposure to excess fatty acids and hypoxia, and whether intervention with niacin during continued feeding of western diet could improve revascularization and functional recovery in obese, hyperlipidemic mice with peripheral ischemia...
June 2016: Pharmacology Research & Perspectives
https://www.readbyqxmd.com/read/27088907/thymus-the-next-re-generation
#19
REVIEW
Mohammed S Chaudhry, Enrico Velardi, Jarrod A Dudakov, Marcel R M van den Brink
As the primary site of T-cell development, the thymus plays a key role in the generation of a strong yet self-tolerant adaptive immune response, essential in the face of the potential threat from pathogens or neoplasia. As the importance of the role of the thymus has grown, so too has the understanding that it is extremely sensitive to both acute and chronic injury. The thymus undergoes rapid degeneration following a range of toxic insults, and also involutes as part of the aging process, albeit at a faster rate than many other tissues...
May 2016: Immunological Reviews
https://www.readbyqxmd.com/read/27016400/concise-review-cellular-therapies-the-potential-to-regenerate-and-restore-tolerance-in-immune-mediated-intestinal-diseases
#20
REVIEW
Rachele Ciccocioppo, Giuseppina Cristina Cangemi, Peter Kruzliak, Gino Roberto Corazza
Chronic inflammatory enteropathies, including celiac disease, Crohn's disease, and ulcerative colitis, are lifelong disabling conditions whose cure is still an unmet need, despite the great strides made in understanding their complex pathogenesis. The advent of cellular therapies, mainly based on the use of stem cells, represents a great step forward thanks to their multitarget strategy. Both hematopoietic stem cells (HSC) and mesenchymal stem/stromal cells (MSC) have been employed in the treatment of refractory cases with promising results...
June 2016: Stem Cells
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