Pioneering Stem Cell-Based Transplant Technology Is Being Developed And Tested On New Organs And Tissues

Surgeon Paolo Macchiarini has made his name by successfully transplanting bioengineered stem cell-based trachea, composed of both artificial and biological material. He now plans to use the technique to recreate more complex tissues, such as the oesophagus and diaphragm or organs such as the heart and lungs. He has also made an experimental attempt to regenerate brain in mice and rats. This is part of the news he presented during his seminar at the scientific AAAS Annual Meeting in Boston...
Source: Health News from Medical News Today - Category: Consumer Health News Tags: Transplants / Organ Donations Source Type: news

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Qiancheng Deng1, Yangyang Luo1,2, Christopher Chang3, Haijing Wu1, Yan Ding4* and Rong Xiao1* 1Hunan Key Laboratory of Medical Epigenetics, Department of Dermatology, The Second Xiangya Hospital, Central South University, Changsha, China 2Department of Dermatology, Hunan Children's Hospital, Changsha, China 3Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, Davis, CA, United States 4Department of Dermatology, Hainan Provincial Dermatology Disease Hospital, Haikou, China Autoimmune diseases are usually complex and multifactorial, characterized by aberrant produc...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Giuseppe Ristagno1*, Francesca Fumagalli1, Barbara Bottazzi2, Alberto Mantovani2,3,4, Davide Olivari1, Deborah Novelli1 and Roberto Latini1 1Department of Cardiovascular Research, Mario Negri Institute for Pharmacological Research IRCCS, Milan, Italy 2Humanitas Clinical and Research Center-IRCCS, Milan, Italy 3Humanitas University, Milan, Italy 4The William Harvey Research Institute, Queen Mary University of London, London, United Kingdom The long pentraxin PTX3 is a member of the pentraxin family produced locally by stromal and myeloid cells in response to proinflammatory signals and microbial moieties. The p...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
In this study they also showed PTX3 localized in NETs formed after neutrophil activation (5). Proteomics analysis revealed that PTX3 forms complexes with two anti-microbial proteins [azurocidin (AZU1) and myeloperoxidase (MPO)] associated to NETs (30). More recently, PTX3 localization in NETs has been confirmed, and the colocalization with AZU1 and MPO has been defined more accurately (31). Further investigation will be needed to understand the involvement of PTX3 interaction with AZU1 and MPO in their antibacterial role during NET formation. Regulation of Complement Activation PTX3 interaction with microorganisms is not...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Conclusion: Mesenchymal stem cell transplantation could be use as a potential treatment for PHLF. Introduction Partial hepatectomy is an important treatment for benign and malignant liver diseases. Although the liver can be completely regenerated after partial excision or injury, at least 1/3 of the liver should be retained in most of the patients, and 40–50% should be retained in patients with parenchymal liver disease (Adams et al., 2013; Cieslak et al., 2014). Postoperative complications, such as acute post-hepatectomy liver failure (PHLF) or small liver syndrome, may occur when the scope of excision is to...
Source: Frontiers in Physiology - Category: Physiology Source Type: research
In this study the effect of NMP perfusion fluid on survival, metabolism and function of thawed cryopreserved human (h)MSC and porcine (p)MSC in suspension conditions was studied. Suspension conditions reduced the viability of pMSC by 40% in both perfusion fluid and culture medium. Viability of hMSC was reduced by suspension conditions by 15% in perfusion fluid, whilst no differences were found in survival in culture medium. Under adherent conditions, survival of the cells was not affected by perfusion fluid. The perfusion fluid did not affect survival of fresh MSC in suspension compared to the control culture medium. The f...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Ryan R. Kelly1,2†, Lindsay T. McDonald1,2†, Nathaniel R. Jensen1,2, Sara J. Sidles1,2 and Amanda C. LaRue1,2* 1Research Services, Ralph H. Johnson VA Medical Center, Charleston, SC, United States 2Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, United States The significant biochemical and physiological effects of psychological stress are beginning to be recognized as exacerbating common diseases, including osteoporosis. This review discusses the current evidence for psychological stress-associated mental health disorders as risk factors for os...
Source: Frontiers in Psychiatry - Category: Psychiatry Source Type: research
This study defines a new clinically relevant concept of T-cell senescence-mediated inflammatory responses in the pathophysiology of abnormal glucose homeostasis. We also found that T-cell senescence is associated with systemic inflammation and alters hepatic glucose homeostasis. The rational modulation of T-cell senescence would be a promising avenue for the treatment or prevention of diabetes. Intron Retention via Alternative Splicing as a Signature of Aging https://www.fightaging.org/archives/2019/03/intron-retention-via-alternative-splicing-as-a-signature-of-aging/ In recent years researchers have inv...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
The objective of this report was to summarize current knowledge of CC, squamous intraepithelial lesions, and human papillomavirus (HPV) infection in non-HIV immunocompromised women to determine best practices for CC surveillance in this population and provide recommendations for screening. We evaluated those with solid organ transplant, hematopoietic stem cell transplant, and a number of autoimmune diseases. A panel of health care professionals involved in CC research and care was assembled to review and discuss existing literature on the subject and come to conclusions about screening based on available evidence and expe...
Source: Journal of Lower Genital Tract Disease - Category: OBGYN Tags: HPV-Associated Disease: Diagnosis and Management Source Type: research
This study provides a possible reason why genes carrying health risks have persisted in human populations. The second found evidence for multiple variants in genes related to ageing that exhibited antagonistic pleiotropic effects. They found higher risk allele frequencies with large effect sizes for late-onset diseases (relative to early-onset diseases) and an excess of variants with antagonistic effects expressed through early and late life diseases. There also exists other recent tangible evidence of antagonistic pleiotropy in specific human genes. The SPATA31 gene has been found under strong positive genomic sele...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Modulation of the immune system using cellular therapy is seen as an increasingly attractive option to prevent solid organ graft rejection, while maintaining sufficient immune function to prevent many of the complications associated with general immunosuppression. We have previously demonstrated that murine myeloid progenitor cells (mMPC), cryopreserved after expansion in vitro, induce robust tolerance for matched organ grafts when preconditioning included lethal whole body irradiation and third party hematopoietic stem cell transplantation (HSC).
Source: The Journal of Heart and Lung Transplantation - Category: Transplant Surgery Authors: Tags: 73 Source Type: research
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