Review of «Delivery
of Allogeneic Adipose Stem Cells in PEG - Fibrin Hydrogels as an Adjunct to Meshed Autografts After Sharp Debridement of Deep Partial Thickness Burns» from STEM CELLS Translational Medicine by Stuart P. Atkinson
One possible role of FMc in healthy women might be the provision
of allogeneic immune surveillance for (pre --RRB- malignant cells.
Knowledge gained from mechanistic studies may contribute to the design
of allogeneic vaccine - based or adoptive immunotherapy for breast cancer.
Burmeister DM, Stone R, Wrice N, et al., Delivery
of Allogeneic Adipose Stem Cells in Polyethylene Glycol ‐ Fibrin Hydrogels as an Adjunct to Meshed Autografts After Sharp Debridement of Deep Partial Thickness Burns.
A phase II study
of allogeneic natural killer cell therapy to treat patients with recurrent ovarian and breast cancer.
One promising solution to increase long - term overall survival has been in the area
of allogeneic hematopoietic stem cell transplantation (HCST).
Initially, and during the first 10 - 15 years of cord blood transplantation, cord blood was predominantly used as a source
of allogeneic donor cells.
Although these data show that successful use
of allogeneic MSC in regenerative therapy is possible, such approaches are unlikely to be broadly acceptable until it is understood why MSC are not rejected.
Dr. Goodman is also involved in collaborative efforts with the San Antonio Bone Marrow Transplant Center to study the outcome
of allogeneic bone marrow transplants following a relapse from autologous bone marrow transplants.
Suppression
of allogeneic T - cell proliferation by human marrow stromal cells: implications in transplantation.
In close collaboration with universities and physicians world - wide, our comprehensive investigational stem cell treatments employ well - targeted combinations
of allogeneic human umbilical cord stem cells, autologous bone marrow stem cells, and autologous adipose stem cells for the diseases listed below.
These reports suggest that transplantation of MSC could be beneficial in patients with various disorders requiring tissue regeneration, and provide evidence supporting the tolerance
of allogeneic MSC by recipients.
There is supporting evidence for the use
of allogeneic MSC from both in vitro and in vivo studies that show MSC avoid normal allo - responses.
Sioud M, Mobergslien A, Boudabous A, Fløisand Y. Evidence for the involvement of galectin - 3 in mesenchymal stem cell suppression
of allogeneic T - cell proliferation.
The extensive apoptosis
of allogeneic corneal endothelial cells by CD8 − T cells from CD4 KO mice was perplexing, as this cell population should not contain CD4 + cells.
The results indicated that CD8 − T cells induced significant, albeit weak, apoptosis
of allogeneic corneal epithelial cells (Figure 5A).
Rejection by CD8 + T cells does not appear to involve either allospecific CTL or DTH effector mechanisms; however, CD8 + T cells are able to induce significant apoptosis
of allogeneic corneal endothelial cells.
The present demonstration of T cell - mediated apoptosis
of allogeneic corneal cells from CD4 KO mice is consistent with previous findings, which noted the presence of apoptotic keratocytes and corneal endothelial cells in rejected corneal allografts in humans and rats respectively (5, 32).
While an important proof - of - principle, few individuals could benefit from allogeneic ccr5Δ32 homozygous transplants due to toxicities
of allogeneic rejection and limitations of finding sufficient HLA - matched ccr5Δ32 homozygous donors.
«With this research from our longitudinal prospective assessment, we are able to deduce that a significant population
of allogeneic BMT survivors will experience cognitive impairment that can and will impact different aspects of their lives moving forward,» Sharafeldin said.
Furthermore, 38 percent
of allogeneic recipients who participated at the three - year mark had not yet returned to work, and impairment was associated with a tenfold increased odds of not returning to work at three years post-transplant.
Not exact matches
HSCT is effectively used today as a form
of «replacement» therapy for patients with hard - to - treat blood cancers, providing healthy cells from either the patient (autologous transplantation) or from a donor (
allogeneic transplantation) to better equip patients to fight the disease on their own.
In the study, analysis
of patient samples demonstrated that high LSC17 scores meant poor outcomes with current standard treatment, even for patients who had undergone
allogeneic stem cell transplantation.
In contrast, injections
of the cells into immunologically unmatched recipients (called an
allogeneic transplantation) caused the body to mount a stronger immune response.
«From this data, it's clear that we have to make strides in supporting
allogeneic BMT recipients in their recovery to ensure that we are educating patients and their families on signs
of cognitive impairment.
Of these 34 patients, 13 (38 %) have remained in remission for five years, and an additional two patients whose disease did not progress after BV went on to achieve remission after receiving
allogeneic stem cell transplant (in which healthy stem cells are taken from a donor and administered to the patient).
Collaboration with Hematology and Bone Marrow Transplantation Unit research group in molecular diagnostics applied to the management
of patients undergoing
allogeneic SCT, especially for the detection
of minimal residual disease and early relapse.
Timed sequential treatment with cyclophosphamide, doxorubicin, and an
allogeneic granulocyte - macrophage colony - stimulating factor - secreting breast tumor vaccine: a chemotherapy dose - ranging study
of safety and immune activation.
As a result, they are currently being investigated as a cellular therapeutic for the treatment
of autoimmune diseases and long - term patient and graft survival following solid organ transplantation, and
allogeneic hematopoietic stem cell transplantation.
Mehta J, Gordon LI, Tallman MS, et al., Does younger donor age affect the outcome
of reduced - intensity
allogeneic hematopoietic stem cell transplantation for hematologic malignancies beneficially?
The resulting 2724 trials were then categorized and core information collated, including: trial phase, cell source (autologous /
allogeneic), current activity
of the trial and responsible national regulatory agency.
Thus MSC could prevent normal
allogeneic responses either through modulation
of DC function or by direct effects on T cells.
Immunosuppressive effect
of mesenchymal stem cells favors tumor growth in
allogeneic animals.
Antiparallel segregation
of notch components in the immunological synapse directs reciprocal signaling in
allogeneic Th: DC conjugates.
The key observation
of this study was that MSCs infused pretransplant localize in the lymphoid organs whereas MSC administered posttransplant are recruited to the graft [syngeneic or
allogeneic].
Allogeneic Sibling Donor Peripheral Blood Stem Cells Transplantation With Myeloablative Conditioning for Chronic Myeloid Leukemia in Blast Crisis - Successful Treatment Despite Severe Phase
of the Disease
Thus mechanisms
of tumor evasion
of the immune system may provide insight into how
allogeneic MSC are tolerated by the mismatched host.
Allogeneic mesenchymal stem cell infusion for treatment
of metachromatic leukodystrophy (MLD) and Hurler syndrome (MPS - IH).
It implies that any residual engagement
of the T cell receptor on Th cells would result in anergy and contribute to tolerance rather than
allogeneic responses.
Board - certified in internal medicine and medical oncology, Dr. Collins has 25 years
of experience in bone marrow transplantation and has participated in some 2,500 autologous and
allogeneic transplants.
Passive immunization, herein referred to as adoptive T cell therapy, is the transfusion
of autologous or
allogeneic T cells into tumor - bearing hosts, i.e., patients.
Evidence from these studies indicates that the use
of mismatched MSC does not provoke a proliferative T cell response in
allogeneic MLR, thus suggesting an immunosuppressive role for MSC 83, 84, 85, 86, 87, 88.
Reconstitution with syngeneic plus
allogeneic or xenogeneic bone marrow leads to specific acceptance
of allografts or xenografts.
Consistent with these studies, Bartholomew et al 92 showed that
allogeneic baboon MSC suppressed the proliferative activity
of lymphocytes in vitro and prolonged graft survival.
Koc et al 77 showed no evidence
of alloreactive T cells and no incidence
of GVHD when
allogeneic MSC were infused into patients with Hurler's syndrome or metachromatic leukodystrophy.
Retrospective case reports suggest that adults may benefit from consolidation with
allogeneic HSCT during their first CR following chemotherapy with one study observing a median overall survival
of 38.5 months [5].
Horwitz et al 79 reported that donor MSC contributed to bone remodelling after
allogeneic stem cell transplantation (SCT) in 3 children with osteogenesis imperfecta, a rare genetic disorder
of type I collagen.
Allogeneic cells obtained from a donor organism
of the same species.
In the future, outpatient blood and bone marrow stem cell transplantation will be offered to a broader group
of patients with other blood disorders and for
allogeneic transplants (transplant from non-twin donor stem cells).
For instance, during emergency care,
allogeneic therapy is usually the only relevant option due to the time constraints
of autologous cell expansion.