Abstract:
:We investigated the effect of the activation of complement in human serum on isolated adult porcine islets using an in vitro model of pig-to-human islet transplantation. Pancreata were obtained from slaughterhouse pigs (6-8 mo old). Islets were prepared by intraductal collagenase digestion followed by purification on Ficoll gradients. The purified islets were incubated with xenogeneic human serum with or without heat inactivation for 45 min. As control, islets were incubated with autologous porcine serum. After the incubation, the islets' responsiveness to an acute glucose stimulus (5.5 mM, static incubation) was evaluated by measurement of the insulin content of the medium. Islets exposed to human serum showed significantly lower insulin secretory response than the control (1.76 +/- 1.17 microU/islet/120 min, without heat inactivation; 1.74 +/- 1.36 microU/islet/120 min, with heat inactivation; 3.39 +/- 0.92 microU/islet/120 min, control). No difference in insulin secretory response, however, was observed between islets exposed to human serum with heat inactivation and without. Furthermore, we evaluated the cytotoxic activity of human serum on porcine islets by a complement-dependent cytotoxicity using the MTT colorimetric assay, and found that the human serum had no complement-dependent cytotoxic activity against the islets. We concluded that the insulin secretion dysfunction of porcine islets exposed to human serum was not due to the activation of complement and there was no evidence of hyperacute rejection mediated by complement activation in the in vitro model of pig-to-human islet transplantation.
journal_name
Cell Transplantjournal_title
Cell transplantationauthors
Kin T,Nakajima Y,Kanehiro H,Aomatsu Y,Yoshimura A,Taki J,Ko S,Yagura K,Oyama T,Ohashi K,Nakano Hdoi
10.1016/0963-6897(96)00038-3subject
Has Abstractpub_date
1996-09-01 00:00:00pages
S45-7issue
5 Suppl 1eissn
0963-6897issn
1555-3892pii
0963689796000383journal_volume
5pub_type
杂志文章abstract::The transplantation of encapsulated dopamine-secreting cells into the striatum represents one potential means of treating Parkinson's disease. The present study investigated the ability of encapsulated PC12 cells, which are derived from rat pheochromocytoma, to supply L-dopa and dopamine into the primate brain in the ...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.1177/096368970000900519
更新日期:2000-09-01 00:00:00
abstract::The ability to replace damaged myocardial tissue with new striated muscle would constitute a major advance in the treatment of diseases that irreversibly injure cardiac muscle cells. The creation of focal grafts of skeletal muscle has been reported following the intramural injection of skeletal myoblasts into both nor...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.1016/0963-6897(95)02016-0
更新日期:1996-01-01 00:00:00
abstract::Peripheral blood samples from HIV-seropositive individuals enrolled in a pilot clinical trial investigating the use of allogeneic dendritic cell therapy were evaluated for mixed chimerism. In this study, dendritic cells from HLA-identical, HIV-seronegative siblings were used. Patients received an infusion of dendritic...
journal_title:Cell transplantation
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:2000-05-01 00:00:00
abstract::Regenerative medicine aims to repair and regenerate damaged cells, tissues, and organs in order to restore function. Regeneration can be obtained either by cell replacement or by stimulating the body's own repair mechanisms. Importantly, a favorable environment is required before any regenerative signal can stimulate ...
journal_title:Cell transplantation
pub_type: 杂志文章,评审
doi:10.3727/096368916X693699
更新日期:2017-04-13 00:00:00
abstract::Several previous studies, suggesting the potential use of embryonic xenografts in the treatment of neurological disorders, indicate that neural growth and axonal guidance factors may function across species. In this light, blocks of fetal porcine neocortex were grafted into small cortical lesion cavities made in newbo...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/000000003108747343
更新日期:2003-01-01 00:00:00
abstract::The biohybrid artificial pancreas is designed to enclose pancreatic tissues with a selectively permeable membrane that immunoisolates the graft from the host immune system, allowing those endocrine tissues to survive and control glucose metabolism for an extended period of time. The pancreatic B cell line MIN6 is esta...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.1016/s0963-6897(97)00074-2
更新日期:1997-09-01 00:00:00
abstract::The anatomical specificity of axon growth from fetal pig septal xenografts was studied by transplanting septal cells from E30-35 pig fetuses into cholinergic deafferented (192-IgG-saporin-infused) rats or into aged rats (> 18 months). Cell suspensions (100,000 cells/microl) were injected bilaterally into the dorsal an...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.1177/096368979900800104
更新日期:1999-01-01 00:00:00
abstract::Nonhuman primate models of Parkinson's disease (PD) have been invaluable to our understanding of the human disease and in the advancement of novel therapies for its treatment. In this review, we attempt to give a brief overview of the animal models of PD currently used, with a more comprehensive focus on the advantage...
journal_title:Cell transplantation
pub_type: 杂志文章,评审
doi:10.3727/000000006783982025
更新日期:2006-01-01 00:00:00
abstract::Traumatic brain injury (TBI), a major contributor to deaths and permanent disability worldwide, has been recently described as a progressive cell death process rather than an acute event. TBI pathophysiology is complicated and can be distinguished by the initial primary injury and the subsequent secondary injury that ...
journal_title:Cell transplantation
pub_type: 杂志文章,评审
doi:10.3727/096368915X686913
更新日期:2015-01-01 00:00:00
abstract::During in vivo intracerebral infusions, the ability to perform accurate targeting towards a 3D-specific point allows control of the anatomical variable and identification of the effects of variations in other factors. Intraoperative MRI navigation systems are currently being used in the clinic, yet their use in nonhum...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368910X514323
更新日期:2010-01-01 00:00:00
abstract::Epithelial wound repair assures the recovery of the epithelial barrier after wounding. During wound healing epithelial cells migrate to cover the wound surface. The presented experiments were carried out to compare the migration of human keratinocytes from primary and secondary culture on polystyrene, collagen, and fi...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:
更新日期:2001-01-01 00:00:00
abstract::Tumor recurrence is the main limitation of liver transplantation (LT) in patients with hepatocellular carcinoma (HCC) and can be promoted by immunosuppressants. However, there is no prevention or treatment for HCC recurrence after LT. Here we describe a clinical-scale method for an adoptive immunotherapy approach that...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368911X627589
更新日期:2012-01-01 00:00:00
abstract::We have recently documented that oral Linomide (quinoline-3-carboxamide) prevents autoimmune insulitis, islet destruction, and diabetes in NOD mice treated at an early stage (5 wk of age) of the disease. In this report, we show that treatment of female NOD mice with advanced disease (age 23-24 wk) by syngeneic islet t...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.1016/s0963-6897(96)00085-1
更新日期:1996-11-01 00:00:00
abstract::In human neonates, immature GABAergic interneurons are markedly affected by an excitotoxic insult. While in adults the interest of cell transplantation has been demonstrated in several neurological disorders, few data are available regarding the immature brain. The low survival rate constitutes a strong limitation in ...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368913X670174
更新日期:2014-01-01 00:00:00
abstract::The use of regenerative medicine to treat nervous system disorders like ataxia has been proposed to either replace or support degenerating neurons. In this study, we assessed the ability of human neural progenitor cells (hNPCs) to repair and restore the function of dying neurons within the spastic Han-Wistar rat (sHW)...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.1177/0963689717723637
更新日期:2017-11-01 00:00:00
abstract::The need for chronic immune suppression (IS) is one of the hurdles precluding widespread use of islet cell transplantation to restore glycemic control in patients with type 1 diabetes. We report the case of a healthy nonhuman primate (NHP) treated on and off for over 2.5 years with steroid-free IS, consisting of dacli...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.1177/0963689718823505
更新日期:2019-03-01 00:00:00
abstract::Cell therapy is a promising treatment modality to improve heart function in acute myocardial infarction. However, the mechanisms of action and the most suitable cell type have not been finally determined. We performed a study to compare the effects of mesenchymal stem cells (MSCs) harvested from different tissues on ...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368911X627462
更新日期:2012-01-01 00:00:00
abstract::Gene therapy as well as methods capable of returning cells to a pluripotent state (iPS) have enabled the correction of genetic deficiencies in syngenic adult progenitors, reducing the need for immunosuppression in cell therapy approaches. However, in diseases involving mutations that lead to the complete lack of a pr...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368910X545068
更新日期:2011-01-01 00:00:00
abstract::Biological pacing has been proposed as a physiologic counterpart to electronic pacing, and the sinoatrial node (SAN) is the general standard for biological pacemakers. We tested the expression of SAN pacemaker cell activity when implanted autologously in the right ventricle (RV). We induced complete heart block and i...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368911X565038
更新日期:2011-01-01 00:00:00
abstract::Islet-like cell clusters generated from human fetal pancreases between 18-24 wk gestation were able to grow and mature both morphologically and functionally after transplantation under the kidney capsule of athymic nude mice. Grafted tissue, predominantly ductal in appearance was unresponsive to glucose 2 wk after gra...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.1177/096368979400300509
更新日期:1994-09-01 00:00:00
abstract::Liver cell transplantation into host organs like the spleen may possibly provide a temporary relief after extensive liver resection or severe liver disease or may enable treatment of an enzyme deficiency. With time, however, dedifferentiation or malignant transformation of the ectopically transplanted cells may be pos...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/000000003108746858
更新日期:2003-01-01 00:00:00
abstract::Transplantation of human cells after isolation and culture has become an important alternative for treatment of acute or chronic skin wounds. To increase the efficacy and reduce cost for transplantation of skin cells, more efficient and accurate techniques for evaluation of cell proliferation are needed. Hemocytometer...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/000000006783982115
更新日期:2006-01-01 00:00:00
abstract::We examined whether hypoxic exposure prior to the event of transplantation would have a positive or negative effect upon later islet graft function. Mouse islets exposed to hypoxic culture were transplanted into syngeneic recipients. Islet graft function, β-cell physiology, as well as molecular changes were examined. ...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368912X658728
更新日期:2013-01-01 00:00:00
abstract::International standards for stem cell treatment of neurological disorders have not yet been established. In particular, specific quantitative methods have not yet been adopted to assess the effectiveness of stem cell treatment. The aim of this study is to evaluate the functional changes detectable by conventional neu...
journal_title:Cell transplantation
pub_type: 临床试验,杂志文章
doi:10.3727/096368912x633761
更新日期:2012-01-01 00:00:00
abstract::The purpose of this study was to investigate the clinical efficacy of neural stem/progenitor cell (NS/PC) transplantation to treat severe cortical visual impairment (CVI), a sequela of neonatal brain injury. Fifty-two patients with cerebral injury and CVI were randomly divided into two groups: the treatment group (n =...
journal_title:Cell transplantation
pub_type: 杂志文章,随机对照试验
doi:10.3727/096368913X672163
更新日期:2013-01-01 00:00:00
abstract::Cell therapies consist in transplanting healthy cells into a disabled tissue with the goal to repopulate it and restore its function at least partially. In muscular diseases, most of the time, myoblasts are chosen for their expansion capacity in culture. Nevertheless, cell transplantation has limitations, among them,...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368912X655028
更新日期:2012-01-01 00:00:00
abstract::The human neuronal cell-1 (HCN-1) line has recently been established. Under favorable conditions, these cells differentiate into mature neuronal phenotypes. Here we report on further characterization of these cells. Cultured HCN-1 cells express fibronectin immunoreactivity and grow well on fibronectin substrate but do...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.1177/096368979200100104
更新日期:1992-01-01 00:00:00
abstract::We attempted to regenerate bone in a significant osseous defect with various stem cells from deciduous teeth, extracted from puppies, and grafted them into a parent canine mandible as an allograft, parent dental pulp, and bone marrow by tissue engineering and regenerative medicine technology using platelet-rich plasm...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368910X539128
更新日期:2011-01-01 00:00:00
abstract::Human skin contains keratinocytes in the epidermis. Such cells share their ectodermal origin with the central nervous system (CNS). Recent studies have demonstrated that terminally differentiated somatic cells can adopt a pluripotent state, or can directly convert its phenotype to neurons, after ectopic expression of ...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.1177/0963689720978219
更新日期:2021-01-01 00:00:00
abstract::The main purpose of this work has been to establish a new culturing technique to improve the chondrogenic commitment of isolated adult human chondrocytes, with the aim of being used during cell-based therapies or tissue engineering strategies. By using a rather novel technique to generate scaffold-free three-dimension...
journal_title:Cell transplantation
pub_type: 杂志文章
doi:10.3727/096368908786576499
更新日期:2008-01-01 00:00:00