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Stem cell transplant harvest

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https://www.readbyqxmd.com/read/29130939/open-the-gates-vascular-neurocrine-signaling-mobilizes-hematopoietic-stem-and-progenitor-cells
#1
Tomer Itkin, Jésus María Gómez-Salinero, Shahin Rafii
Mobilization of hematopoietic stem and progenitor cells (HSPCs) from the bone marrow (BM) into the peripheral blood is a complex process that is enhanced dramatically under stress-induced conditions. A better understanding of how the mobilization process is regulated will likely facilitate the development of improved clinical protocols for stem cell harvesting and transplantation. In this issue of the JCI, Singh et al. (1) showed that the truncated cleaved form of neurotransmitter neuropeptide Y (NPY) actively promotes a breach of BM vascular sinusoidal portals, thereby augmenting HSPC trafficking to the circulation...
November 13, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29125102/role-of-methylprednisolone-in-treatment-of-spinal-cord-injured-with-bone-marrow-mesenchymal-stem-cells-transplantation-in-rats-and-its-effect-on-the-expressions-of-tumor-necrosis-factor-%C3%AE-and-interleukin-1%C3%AE
#2
Xin-Ming Yang, Yao-Yu Cheng, Zhen-Liang Zhang, Cong Kang
Objective To investigate the role of methylprednisolone (MP) in treatment of spinal cord injured (SCI) with bone marrow mesenchymal stem cells (BMSCs) transplantation in rats and its effect on the expressions of tumor necrosis factor-α(TNF-α) and interleukin-1β(IL-1β) at the local tissues.Methods Forty male Sprague-Dawley(SD) rats were used to establish the models of SCI according to the modified Allen's contusion method and then divided into four groups (n=10 in each group) by using random numbers table:MP group,BMSCs group,BMSCs+MP group,and control group...
October 30, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/29123428/hematopoietic-stem-cell-transplantation-in-a-severe-refractory-crohn-s-disease-patient-with-intestinal-stoma-a-case-report
#3
Milton Artur Ruiz, Roberto Luiz Kaiser Junior, Luiz Gustavo de Quadros, Gustavo Henrique Xavier Caseiro, Aderson Francisco Oliveira, Tatiana Peña-Arciniegas, Lilian Piron-Ruiz, Fernanda Soubhia Liedtke Kaiser, Vera Lucia Oliveira
Background: Hematopoietic stem cell transplantation (HSCT) can be used in the treatment of patients with refractory Crohn's disease (CD) when no alternative treatment is available. However, HSCT increases the risk of infections, in particular during the aplasia of mobilization and conditioning. Moreover, intestinal stomas in CD augment the risk of morbidity in immunocompromised patients and under aplastic conditions. The objective of this report was to describe the results of the first year after HSCT in a CD patient with an intestinal stoma...
2017: International Medical Case Reports Journal
https://www.readbyqxmd.com/read/29117721/enhanced-sciatic-nerve-regeneration-by-human-endometrial-stem-cells-in-an-electrospun-poly-%C3%AE%C2%B5-caprolactone-collagen-nbg-nerve-conduit-in-rat
#4
Forouzan Mohamadi, Somayeh Ebrahimi-Barough, Mohammad Reza Nourani, Korosh Mansoori, Majid Salehi, Ali Akbar Alizadeh, Seyed Mohammad Tavangar, Farshid Sefat, Siavash Sharifi, Jafar Ai
In recent years, for neurodegenerative diseases therapy, research has focused on the stem cells therapy. Due to promising findings in stem cell therapy, there are various sources of stem cells for transplantation in human. The aim of this study was to evaluate sciatic nerve regeneration in the rat after nerve transaction followed by human endometrial stem cells (hEnSCs) treatment into poly (e-caprolactone)/collagen/nanobioglass (PCL/collagen/NBG) nanofibrous conduits. After treatment of animals, the performance in motor and sensory tests, showed significant improvement in rats treated with hEnSCs as an autograft...
November 8, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29116027/poly-ethylene-glycol-modified-silk-fibroin-membrane-as-a-carrier-for-limbal-epithelial-stem-cell-transplantation-in-a-rabbit-lscd-model
#5
Yijian Li, Yuli Yang, Lei Yang, Yuxiao Zeng, Xiaowei Gao, Haiwei Xu
BACKGROUND: Limbal epithelial stem cells (LESCs) play important roles in corneal epithelial homeostasis and regeneration, and damage to the limbus will lead to limbal stem cell deficiency (LSCD), with conjunctivalization and even visual impairment. Cultured LESCs have been used for ocular surface reconstruction, and silk fibroin (SF) membranes have shown potential as a substrate for LESC cultivation. Both culture methods and the carriers of LESCs affect outcomes following LESC transplantation...
November 7, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29104070/the-role-of-amniotic-membrane-extract-eye-drop-ameed-in-in-vivo-cultivation-of-limbal-stem-cells
#6
Alireza Baradaran-Rafii, Niloufar Shayan Asl, Marzieh Ebrahimi, Sayena Jabbehdari, Shahram Bamdad, Danial Roshandel, Medi Eslani, Maryam Momeni
BACKGROUND: Limbal stem cell transplantation (LSCT) is the definitive treatment for total limbal stem cell deficiency (LSCD). This study evaluates the anatomical and visual outcomes of a surgical technique supplemented by amniotic membrane extract eye drop (AMEED) for in vivo cultivation of limbal stem cells (LSCs). METHODS: One small limbal block (2 × 1 mm) harvested from the contralateral healthy eye was transferred to the diseased eye, which had been already covered by cryopreserved amniotic membrane (N = 20)...
November 2, 2017: Ocular Surface
https://www.readbyqxmd.com/read/29084289/neuronal-differentiation-of-hair-follicle-bulge-derived-stem-cells-co-cultured-with-mouse-cochlear-modiolus-explants
#7
Timo Schomann, Laura Mezzanotte, John C M J De Groot, Marcelo N Rivolta, Sanne H Hendriks, Johan H M Frijns, Margriet A Huisman
Stem-cell-based repair of auditory neurons may represent an attractive therapeutic option to restore sensorineural hearing loss. Hair-follicle-bulge-derived stem cells (HFBSCs) are promising candidates for this type of therapy, because they (1) have migratory properties, enabling migration after transplantation, (2) can differentiate into sensory neurons and glial cells, and (3) can easily be harvested in relatively high numbers. However, HFBSCs have never been used for this purpose. We hypothesized that HFBSCs can be used for cell-based repair of the auditory nerve and we have examined their migration and incorporation into cochlear modiolus explants and their subsequent differentiation...
2017: PloS One
https://www.readbyqxmd.com/read/29076164/nonhemolytic-passenger-lymphocyte-syndrome
#8
S Gerald Sandler, Suhua Han, Albert Langeberg, Cal Matsumoto, Thomas M Fishbein
BACKGROUND: An 8-month-old recipient of a liver segment transplant had anti-D detected for the first time in her Day 5 posttransplant plasma and anti-C detected for the first time in her Day 55 posttransplant plasma. The donor's plasma contained anti-C and anti-D. Clinical and laboratory findings established a diagnosis of passenger lymphocyte syndrome (PLS). Hemolysis did not occur, because the recipient's blood group phenotype was, by chance, D- C-. STUDY DESIGN AND METHODS: To evaluate contemporary practice for diagnosing PLS, we conducted a retrospective 10-year literature review...
October 26, 2017: Transfusion
https://www.readbyqxmd.com/read/29075055/single-dose-preemptive-plerixafor-for-stem-cell-mobilization-for-asct-after-lenalidomide-based-therapy-in-multiple-myeloma-impact-in-resource-limited-setting
#9
Rajiv Kumar, Rajan Kapoor, Bhushan Asthana, Jasjit Singh, Tarun Verma, Rajesh Chilaka, N K Singh, Ajay Sharma, S Das, Velu Nair
Peripheral blood stem cell mobilization with cytokines for autologous stem cell transplant in multiple myeloma is adversely affected by initial induction therapy consisting of either Lenalidomide or cytotoxic drugs, with failure rates of up to 45%. The use of Plerixafor with G-CSF for PBSC mobilisation significantly improves the chances of a successful mobilization. Plerixafor is a costly therapy and increases the overall costs of ASCT which can affect the number of patients being taken up for ASCT in resource limited settings...
December 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/29068969/positive-effect-of-incubated-adipose-derived-mesenchymal-stem-cells-on-microfat-graft-survival
#10
Jong Woo Choi, Sung-Chan Kim, Eun-Jung Park, Ju-A Lee, Woo Shik Jeong
Autologous fat grafting is commonly used for soft tissue augmentation, but its unpredictably high resorption rate remains a major limitation. Although adipose-derived mesenchymal stem cells (ASCs) are an attractive candidate for enhancing graft retention, their poor posttransplantation viability limits their application. The authors aimed to evaluate the effect of incubated ASCs on microfat graft survival in an immunocompromised mouse model. Lipoaspirates for microfat injection were collected from the wasted lower abdominal adipose tissues of 5 patients who had undergone breast reconstructive surgery with an abdominal flap...
October 24, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29065044/osteogenesis-of-crouzon-mutated-cells-in-a-murine-model
#11
Andre Alcon, Philipp Metzler, Jacob Eswarakumar, Alexander T Wilson, Derek M Steinbacher
Crouzon syndrome is an autosomal-dominant congenital disease due to a mutation in the fibroblast growth factor receptor 2 protein. The purpose of this study is to evaluate wound-healing potential of Crouzon osteoblasts and adipose-derived stem cells (ADSCs) in a murine model. Parietal skull defects were created in Crouzon and mature wild-type (WT) CD-1 mice. One group of WT and Crouzon mice were left untreated. Another group was transplanted with both WT and Crouzon adipose-derived stem cells. Additional groups compared the use of a fibrin glue scaffold and periosteum removal...
October 23, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29017529/short-review-on-human-umbilical-cord-lining-epithelial-cells-and-their-potential-clinical-applications
#12
REVIEW
Razwa Saleh, Hasan Mahmud Reza
BACKGROUND: The human umbilical cord has been studied extensively in the past two decades. It is free of ethical dilemmas, non-tumorigenic, and less immunogenic and thus provides a significant advantage over other stem cell sources. The cord lining yields both mesenchymal and epithelial stem cells. The mesenchymal cells have been appraised at length by many researchers, which led to the current review focusing on the cord lining epithelial cells (CLECs). These cells have high proliferative capacity and their superior harvest and multiplication, using the revolutionary CellOptima(TM) technology, makes them better candidates in comparison to contemporary adult stem cells...
October 10, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28993834/ipsc-derived-neural-precursor-cells-potential-for-cell-transplantation-therapy-in-spinal-cord-injury
#13
REVIEW
Narihito Nagoshi, Hideyuki Okano
A number of studies have demonstrated that transplantation of neural precursor cells (NPCs) promotes functional recovery after spinal cord injury (SCI). However, the NPCs had been mostly harvested from embryonic stem cells or fetal tissue, raising the ethical concern. Yamanaka and his colleagues established induced pluripotent stem cells (iPSCs) which could be generated from somatic cells, and this innovative development has made rapid progression in the field of SCI regeneration. We and other groups succeeded in producing NPCs from iPSCs, and demonstrated beneficial effects after transplantation for animal models of SCI...
October 9, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28954978/stroke-and-the-cell-therapy-saga-towards-a-safe-swift-and-efficient-utilization-of-cells
#14
Nathalie Kubis
The first clinical trials of cell therapy in stroke were first published in the 2000s and consisted of neural stems cells transplanted via the intracerebral pathway. Since mesenchymal stem cells showed similar capacities to differentiate into neural cells and allowed autologous cell transplantation, they were then preferentially studied, including diabetes and hypertension. More recently, bone marrow derived mononuclear cells were successfully transplanted in stroke with no need of culture processing, and simple collection by density gradient centrifugation rendering them immediately ready for use...
2017: Keio Journal of Medicine
https://www.readbyqxmd.com/read/28951538/effect-of-tendon-stem-cells-in-chitosan-%C3%AE-glycerophosphate-collagen-hydrogel-on-achilles-tendon-healing-in-a-rat-model
#15
Zhijin Yang, Honghui Cao, Shang Gao, Mingyu Yang, Jingtong Lyu, Kanglai Tang
BACKGROUND The aim of this study was to determine whether the local application of tendon stem cells (TSCs) with chitosan/β-glycerophosphate/collagen(C/GP/Co) hydrogel promotes healing after an acute Achilles tendon injury in a rat model. MATERIAL AND METHODS Ninety-six Sprague-Dawley (SD) rats were used to make an Achilles tendon defect model, then the animals were randomly divided into 4 groups consisting of 8 rats each: control group, hydrogel group, TSCs group, and TSCs with hydrogel group. At 2, 4, and 6 weeks after treatment, tendon samples were harvested, and the quality of tendon repair was evaluated based on histology, immunohistochemistry, and biomechanical properties...
September 27, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28922324/biological-properties-and-therapeutic-value-of-cryopreserved-fat-tissue
#16
Takanobu Mashiko, Szu-Hsien Wu, Koji Kanayama, Rintaro Asahi, Takako Shirado, Masanori Mori, Ataru Sunaga, Shunji Sarukawa, Hirokazu Uda, Kotaro Yoshimura
BACKGROUND: Fat grafting frequently requires multiple treatments and thus repeated liposuction to achieve treatment goals. The purpose of this study is to evaluate whether cryopreservation of adipose tissue may facilitate future fat grafting. METHODS: Lipoaspirates were harvested from six adult females and preserved using two cryopreservation methods: 1) simple cooling to -80˚C (cryo-1); or 2) programmed cooling to -190˚C (cryo-2). Fresh fat, cryo-1 fat, and cryo-2 fat were analyzed both in vitro and in vivo...
September 14, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28916148/chemokine-receptor-directed-imaging-and-therapy
#17
REVIEW
Andreas K Buck, Antje Stolzenburg, Heribert Hänscheid, Andreas Schirbel, Katharina Lückerath, Margret Schottelius, Hans-Jürgen Wester, Constantin Lapa
The C-X-C chemokine receptor 4 (CXCR4) and its natural ligand CXCL12 are key factors in the process of cell migration, homing of hematopoietic stem cells to the bone marrow, and represent important mediators of angiogenesis and cell proliferation. The CXCR4/CXCL12 interplay can be disrupted by CXCR4 antagonists such as Plerixafor which are already in daily clinical use, i.e. for mobilization and subsequent harvesting of hematopoietic progenitor cells and stem cell transplantation. In a pathological condition, involvement in the process of metastasis and homing of cancer cells to a protective niche has been described, making CXCR4 an attractive target for imaging and treatment of malignant diseases...
November 1, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/28901186/recipient-adipose-derived-stem-cells-enhance-recipient-cell-engraftment-and-prolong-allotransplant-survival-in-a-miniature-swine-hind-limb-model
#18
Yur-Ren Kuo, Chien-Chang Chen, Yen-Chou Chen, Ching-Ming Chien
Donor mesenchymal stem cells (MSCs) could prolong vascularized composite allotransplantation (VCA) survival in our previous studies. However, recipient adipose tissue is easier to harvest than donor tissue for preconditioning modulation. Hence, this study investigated the efficacy of recipient autologous adipose-derived stem cells (rADSCs) for VCA survival. The heterotopic hind-limb transplantation from female donor to male recipient was performed in outbred miniature swine. Group I ( n = 6) was untreated controls...
August 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28895851/gene-therapy-approaches-to-hemoglobinopathies
#19
REVIEW
Giuliana Ferrari, Marina Cavazzana, Fulvio Mavilio
Gene therapy for hemoglobinopathies is currently based on transplantation of autologous hematopoietic stem cells genetically modified with a lentiviral vector expressing a globin gene under the control of globin transcriptional regulatory elements. Preclinical and early clinical studies showed the safety and potential efficacy of this therapeutic approach as well as the hurdles still limiting its general application. In addition, for both beta-thalassemia and sickle cell disease, an altered bone marrow microenvironment reduces the efficiency of stem cell harvesting as well as engraftment...
October 2017: Hematology/oncology Clinics of North America
https://www.readbyqxmd.com/read/28869071/role-of-transplanted-bone-marrow-cells-in-development-of-rotator-cuff-muscle-fatty-degeneration-in-mice
#20
Lawrence V Klomps, Naseem Zomorodi, H Mike Kim
BACKGROUND: Rotator cuff muscle fatty degeneration after a chronic tendon tear is an irreversible pathologic change associated with poor clinical outcomes of tendon repair, and its exact pathogenesis remains unknown. We sought to investigate the role of transplanted bone marrow cells in the development of fatty degeneration, specifically in adipocyte accumulation, using a mouse model. METHODS: Fourteen mice were divided into 2 bone marrow chimeric animal groups: bone marrow transplantation (BMT) group and reverse BMT group...
August 28, 2017: Journal of Shoulder and Elbow Surgery
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