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Stem cell transplant harvest

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https://www.readbyqxmd.com/read/28325116/stem-cell-markers-describe-a-transition-from-somatic-to-pluripotent-cell-states-in-a-rat-model-of-endometriosis
#1
Essam Rashad Othman, Fatma Yassine Meligy, Ayat Abdel-Rahman Sayed, Mohamed Ahmed El-Mokhtar, Abeer Mohamed Refaiy
OBJECTIVE: To study Thy1 as a fibroblast marker, SSEA1 as a marker of intermediate pluripotency, and Oct4 as a marker of established pluripotency in rat model of endometriosis. DESIGN: In vivo animal study. MATERIALS AND METHODS: Endometriosis was induced in 20 albino female rats through autologous transplantation of one uterine horn to mesentery of intestine. Other 20 rats had their horn removed without transplantation (controls). Rats were sacrificed 4 weeks after induction surgery...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28321921/insights-into-cell-free-therapeutic-approach-role-of-stem-cell-soup-ernatant
#2
REVIEW
Shalini Raik, Ajay Kumar, Shalmoli Bhattacharyya
Current advances in medicine have revolutionized the field of regenerative medicine dramatically with newly evolved therapies for repair or replacement of degenerating or injured tissues. Stem cells can be harvested from different sources for clinical therapeutics which include fetal tissues, umbilical cord blood, embryos and adult tissues. Stem cells can be isolated and differentiated into desired lineages for tissue regeneration and cell replacement therapy. However, several loopholes need to be addressed properly before this can be extended for large scale therapeutic application...
March 21, 2017: Biotechnology and Applied Biochemistry
https://www.readbyqxmd.com/read/28296571/efficient-generation-of-functional-schwann-cells-from-adipose-derived-stem-cells-in-defined-conditions
#3
Songtao Xie, Fan Lu, Juntao Han, Ke Tao, Hongtao Wang, Alfred Simental, Dahai Hu, Hao Yang
Schwann cells (SCs) are hitherto regarded as the most promising candidates for viable cell-based therapy to peripheral nervous system (PNS) injuries or degenerative diseases. However, the extreme drawbacks of transplanting autologous SCs for clinical applications still represent a significant bottleneck in neural regenerative medicine, mainly owing to the need of sacrificing a functional nerve to generate autologous SCs and the nature of slow expansion of the SCs. Thus, it is of great importance to establish an alternative cell system for the generation of sufficient SCs...
March 15, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28289507/impact-of-t-cells-on-hematopoietic-stem-and-progenitor-cell-function-good-guys-or-bad-guys
#4
REVIEW
Sulima Geerman, Martijn A Nolte
When hematopoietic stem and progenitor cells (HSPC) are harvested for transplantation, either from the bone marrow or from mobilized blood, the graft contains a significant number of T cells. It is these T cells that are the major drivers of graft-vs-host disease (GvHD). The risk for GvHD can simply be reduced by the removal of these T cells from the graft. However, this is not always desirable, as this procedure also decreases the engraftment of the transplanted HSPCs and, if applicable, a graft-vs-tumor effect...
February 26, 2017: World Journal of Stem Cells
https://www.readbyqxmd.com/read/28282510/cxcr4-cd184-expression-on-stem-cell-harvest-and-cd34-cells-post-transplant
#5
Inas Asfour, Hanaa Afify, Shaza Elkourashy, Maryse Ayoub, Gihan Kamal, Mary Gamal, Ghada Elgohary
OBJECTIVES/BACKGROUND: CXCR4 is a receptor for stromal-derived factor-1 (SDF-1), a molecule that has a chemotactic activity for lymphocytes and is important in homing of hematopoietic stem cells to their adult marrow. We evaluated the CXCR4 (CD184) expression in the harvest cells and in the post-transplant bone marrow (BM) and its relation to engraftment, as determined by the consensus criteria and chimerism. METHODS: This is a prospective study which included 30 patients undergoing hematopoietic stem cell transplantation; 15 patients received autograft and 15 patients received allograft on dates between January 2012 and May 2014...
March 2, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28281429/single-centre-experience-of-allogeneic-haemopoietic-stem-cell-transplant-in-paediatric-patients-in-cape-town-south-africa
#6
A Van Eyssen, N Novitsky, P De Wit, T Schlaphoff, V Thomas, D Pillay, M Hendricks, A Davidson
BACKGROUND: Allogeneic haemopoietic stem cell transplant (Allo-HSCT) is a specialised and costly intervention, associated with significant morbidity and mortality. It is used to treat a broad range of paediatric conditions. South Africa (SA) is an upper middle-income country with limitations on healthcare spending. The role of paediatric Allo-HSCT in this setting is reviewed. OBJECTIVES: To review paediatric patients who underwent Allo-HSCT at the Groote Schuur Hospital/University of Cape Town Private Academic Hospital transplant unit in Cape Town, South Africa, and received post-transplant care at Red Cross War Memorial Children's Hospital, over the period January 2006 - December 2014 in respect of indications for the transplant, donor sources, conditioning regimens, treatment-related morbidity and overall survival (OS)...
February 27, 2017: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
https://www.readbyqxmd.com/read/28244829/regenerative-capacity-of-autologous-stem-cell-transplantation-in-elderly-a-report-of-biomedical-outcomes
#7
Maria Teresa Gonzalez-Garza, Delia Elva Cruz-Vega
The occurrence of chronic diseases such as neurological, metabolic and cardiovascular degenerative disorders increases with age. Cell therapy is an emerging approach to the treatment of these conditions. Of particular interest is the application of autologous stem cells because it eliminates post-transplantation immune rejection and there are less ethical concerns associated with their use. The regenerative capacity of stem cells harvested from elderly people is however controversial. In this review, we analyze if self-renewal potential, differentiation capability and expression of stemness genes in stem cells collected from elderly patients validate their application in clinical trials and examine the results...
March 2017: Regenerative Medicine
https://www.readbyqxmd.com/read/28244687/vegf165-induces-differentiation-of-hair-follicle-stem-cells-into-endothelial-cells-and-plays-a-role-in-in-vivo-angiogenesis
#8
Renfu Quan, Weibin Du, Xuan Zheng, Shichao Xu, Qiang Li, Xing Ji, Ximei Wu, Rongxue Shao, Disheng Yang
Within the vascular endothelial growth factor (VEGF) family of five subtypes, VEGF165 secreted by endothelial cells has been identified to be the most active and widely distributed factor that plays a vital role in courses of angiogenesis, vascularization and mesenchymal cell differentiation. Hair follicle stem cells (HFSCs) can be harvested from the bulge region of the outer root sheath of the hair follicle and are adult stem cells that have multi-directional differentiation potential. Although the research on differentiation of stem cells (such as fat stem cells and bone marrow mesenchymal stem cells) to the endothelial cells has been extensive, but the various mechanisms and functional forms are unclear...
February 28, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28239777/-limbal-epithelial-stem-cell-transplantation-current-state-and-perspectives
#9
D Meller, H Thomasen
Homeostasis of the corneal surface is maintained by epithelial stem cells localized in the limbus. Multiple intrinsic factors or external injuries can destroy the delicate microenvironment of limbal epithelial stem cells causing a state which is termed limbal stem cell deficiency (LSCD). In such cases, re-epithelialization of the cornea is drastically impeded and conjunctival epithelium starts to extend beyond the limbus and to invade the corneal surface. In partial LSCD, a superficial keratectomy combined with an amniotic membrane is advised and helpful to restore an intact, healthy ocular surface...
February 26, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28230931/spatially-assembled-bilayer-cell-sheets-of-stem-cells-and-endothelial-cells-using-thermosensitive-hydrogels-for-therapeutic-angiogenesis
#10
Indong Jun, Taufiq Ahmad, Seongwoo Bak, Joong-Yup Lee, Eun Mi Kim, Jinkyu Lee, Yu Bin Lee, Hongsoo Jeong, Hojeong Jeon, Heungsoo Shin
Although the coculture of multiple cell types has been widely employed in regenerative medicine, in vivo transplantation of cocultured cells while maintaining the hierarchical structure remains challenging. Here, a spatially assembled bilayer cell sheet of human mesenchymal stem cells and human umbilical vein endothelial cells on a thermally expandable hydrogel containing fibronectin is prepared and its effect on in vitro proangiogenic functions and in vivo ischemic injury is investigated. The expansion of hydrogels in response to a temperature change from 37 to 4 °C allows rapid harvest and delivery of the bilayer cell sheet to two different targets (an in vitro model glass surface and in vivo tissue)...
February 23, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28217369/regenerative-medicine-using-dental-pulp-stem-cells-for-liver-diseases
#11
EDITORIAL
Shogo Ohkoshi, Hajime Hara, Haruka Hirono, Kazuhiko Watanabe, Katsuhiko Hasegawa
Acute liver failure is a refractory disease and its prognosis, if not treated using liver transplantation, is extremely poor. It is a good candidate for regenerative medicine, where stem cell-based therapies play a central role. Mesenchymal stem cells (MSCs) are known to differentiate into multiple cell lineages including hepatocytes. Autologous cell transplant without any foreign gene induction is feasible using MSCs, thereby avoiding possible risks of tumorigenesis and immune rejection. Dental pulp also contains an MSC population that differentiates into hepatocytes...
February 6, 2017: World Journal of Gastrointestinal Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28205557/experimental-study-of-the-biological-properties-of-human-embryonic-stem-cell-derived-retinal-progenitor-cells
#12
Jingzhi Shao, Peng-Yi Zhou, Guang-Hua Peng
Retinal degenerative diseases are among the leading causes of blindness worldwide, and cell replacement is considered as a promising therapeutic. However, the resources of seed cells are scarce. To further explore this type of therapy, we adopted a culture system that could harvest a substantial quantity of retinal progenitor cells (RPCs) from human embryonic stem cells (hESCs) within a relatively short period of time. Furthermore, we transplanted these RPCs into the subretinal spaces of Royal College of Surgeons (RCS) rats...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28199473/response-to-comments-on-the-effects-of-fat-harvesting-and-preparation-air-exposure-obesity-and-stem-cell-enrichment-on-adipocyte-viability-prior-to-graft-transplantation
#13
Rodolfo Cucchiani, Luis Corrales
No abstract text is available yet for this article.
February 12, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28199469/comments-on-the-effects-of-fat-harvesting-and-preparation-air-exposure-obesity-and-stem-cell-enrichment-on-adipocyte-viability-prior-to-graft-transplantation
#14
Chenglong Wang, Jie Luan
No abstract text is available yet for this article.
February 12, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28182150/evaluation-of-a-biosimilar-granulocyte-colony-stimulating-factor-filgrastim-xm02-for-peripheral-blood-stem-cell-mobilization-and-transplantation-a-single-center-experience-in-japan
#15
Hideaki Yoshimura, Masaaki Hotta, Takahisa Nakanishi, Shinya Fujita, Aya Nakaya, Atsushi Satake, Tomoki Ito, Kazuyoshi Ishii, Shosaku Nomura
BACKGROUND: Biosimilar granulocyte colony-stimulating factor (G-CSF) has recently been introduced into clinical practice. G-CSFs are used to mobilize CD34(+) cells and accelerate engraftment after transplantation. However, in Asia, particularly in Japan, data for peripheral blood stem cell (PBSC) mobilization by this biosimilar G-CSF are currently lacking. Therefore, the clinical efficacy and safety of biosimilar G-CSF for hematopoietic stem cell transplantation needs to be evaluated in a Japanese context...
2017: Journal of Blood Medicine
https://www.readbyqxmd.com/read/28175966/literature-review-to-optimize-the-autologous-fat-transplantation-procedure-and-recent-technologies-to-improve-graft-viability-and-overall-outcome-a-systematic-and-retrospective-analytic-approach
#16
REVIEW
Yoong Hoon Shim, Ru Hong Zhang
OBJECTIVE: Investigation and evaluation of the current methods and steps of autologous fat transplantation to optimize the viability of fat grafts and procedure outcome in quest of a more standardized protocol. METHODS: A thorough literature search was performed across the CNKI, Wan Fang, PubMed, Ovid and EMBASE databases from the year 1970 to December 2014, collecting and classifying all of the autologous fat transplantation-related reports and articles, and after screening, a critical retrospective analysis was performed on the included data...
February 7, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28170194/human-adipose-derived-stem-cells-expanded-under-ambient-oxygen-concentration-accumulate-oxidative-dna-lesions-and-experience-procarcinogenic-dna-replication-stress
#17
Rémy Bétous, Marie-Laure Renoud, Claire Hoede, Ignacio Gonzalez, Natalie Jones, Michel Longy, Luc Sensebé, Christophe Cazaux, Jean-Sébastien Hoffmann
Adipose-derived stem cells (ADSCs) have led to growing interest in cell-based therapy because they can be easily harvested from an abundant tissue. ADSCs must be expanded in vitro before transplantation. This essential step causes concerns about the safety of adult stem cells in terms of potential transformation. Tumorigenesis is driven in its earliest step by DNA replication stress, which is characterized by the accumulation of stalled DNA replication forks and activation of the DNA damage response. Thus, to evaluate the safety of ADSCs during ex vivo expansion, we monitored DNA replication under atmospheric (21%) or physiologic (1%) oxygen concentration...
January 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28147367/mesenchymal-stromal-cell-therapy-in-crohn-s-disease
#18
REVIEW
Geoffrey M Forbes
BACKGROUND: Mesenchymal stromal cells (MSC) are multipotent adult stem cells with immunomodulatory properties. They uniquely express HLA class I antigen at a low level, and do not express HLA class II. Hence, for allogeneic administration, donor to recipient matching is not required; yet a prolonged chimeric state does not occur. Contrary to haematopoietic stem cell transplantation, cytotoxic drug therapy is not required to harvest, or administer, cells. Key Messages: MSC are obtained from marrow, adipose tissue or placenta...
2017: Digestive Diseases
https://www.readbyqxmd.com/read/28147358/hematopoietic-stem-cell-transplantation-in-crohn-s-disease-state-of-the-art-treatment
#19
REVIEW
C J Hawkey
Both autologous and allogeneic haemopoietic stem cell transplantation (HSCT) have been tried in Crohn's disease (CD). In allogeneic HSCT, the host bone marrow is ablated and replaced by bone marrow from a donor. This substitution of a genetically different bone marrow is effective in a number of conditions including those with an immunological basis such as CD. While the toxicity of allogeneic HSCT has precluded its uptake in idiopathic CD, there is interest in its utility in the management of early onset infantile (inflammatory bowel disease), which behaves as a monogenic disorder, with abnormalities of the interleukin 10 signalling system as the best recognized...
2017: Digestive Diseases
https://www.readbyqxmd.com/read/28139098/predictors-for-successful-pbsc-collection-on-the-fourth-day-of-g-csf-induced-mobilization-in-allogeneic-stem-cell-donors
#20
Anja van Oostrum, Jaap Jan Zwaginga, Sandra Croockewit, Jacqueline Overdevest, Mirjam Fechter, Bart Ruiterkamp, Anneke Brand, Tanja Netelenbos
Peripheral blood stem cells (PBSCs) used for allogeneic transplantation are collected by apheresis after pre-treatment of donors with G-CSF. Using modern apheresis devices stem cells can be collected more efficiently. It was studied whether collection on the 4th instead of the 5th day after initiation of G-CSF treatment might be feasible. Stem cell yields that could have been collected on day 4 were calculated in two cohorts treated with 10 µg/kg G-CSF once daily (n = 106, cohort I) or 5 µg/kg twice daily schedule (n = 85, cohort II)...
January 31, 2017: Journal of Clinical Apheresis
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