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Long-term Survival after Hematopoietic Cell Transplant for Sickle Cell Disease Compared to the United States Population.

Hematopoietic cell transplant for sickle cell disease is curative but is associated with life threatening complications most of which occur within the first 2 years after transplantation. In the current era with interest in gene therapy and gene editing we felt it timely to report on sickle cell disease transplant recipients who were alive for at least 2-year after transplantation, not previously reported. Our objectives were to (1) report the conditional survival rates of patients who were alive for 2 or more years after transplantation (2) identify risk factors for death beyond 2 years after

Endocytosis-Mediated Replenishment of Amino Acids Favors Cancer Cell Proliferation and Survival in Chromophobe Renal Cell Carcinoma.

Chromophobe renal cell carcinoma (chRCC) accounts for approximately 5% of all renal cancers and around 30% of chRCC cases have mutations in TP53. chRCC is poorly supported by microvessels and has markably lower glucose uptake than clear cell RCC and papillary RCC. Currently, the metabolic status and mechanisms by which this tumor adapts to nutrient-poor microenvironments remain to be investigated. In this study, we performed proteome and metabolome profiling of chRCC tumors and adjacent kidney tissues and identified major metabolic alterations in chRCC tumors, including the classical Warburg e

A newly generated neuronal cell model of CLN7 disease reveals aberrant lysosome motility and impaired cell survival.

Mutations in the CLN7/MFSD8 gene encoding the lysosomal membrane protein CLN7 are causative of CLN7 disease, an inherited neurodegenerative … of Cln7 resulted in enhanced cell death under prolonged nutrient deprivation. Furthermore, reduced cell survival of Cln7-deficient cells was accompanied by a significantly impaired protein kinase B/Akt phosphorylation at Ser473 during long-term starvation. In summary, our data demonstrate for the first time that the putative lysosomal transporter CLN7 is relev …

Timing of intra-arterial neural stem cell transplantation after hypoxia-ischemia influences cell engraftment, survival, and differentiation.

BACKGROUND AND PURPOSE: Intra-arterial neural stem cell (NSC) transplantation shows promise as a minimally invasive therapeutic option for stroke. We assessed the effect of timing of transplantation on cell engraftment, survival, and differentiation. METHODS: Mouse NSCs transduced with a green fluorescent protein and renilla luciferase reporter gene were transplanted into animals 6 and 24 hours and 3, 7, and 14 days after hypoxia-ischemia (HI). Bioluminescent imaging was used to assess cell survival at 6 hours and 4 and 7 days after transplantation. Immunohistochemistry was used to assess NSC…

Prognostic factors for survival in patients with advanced renal cell carcinoma undergoing nonmyeloablative allogeneic stem cell transplantation.

BACKGROUND: The objective of this study was to identify prognostic factors for predicting survival in patients with advanced renal cell carcinoma (RCC) who had undergone an allogeneic stem cell transplantation after failure on immunotherapy. METHODS: The authors studied 70 patients with advanced RCC who underwent allogeneic transplantation with a fludarabine-based, reduced-intensity regimen. Ten parameters were analyzed at the time of transplantation for their power to predict survival. Clinical features were examined first univariately; then, variables that were correlated significantly with

Survival and B-cell function of neonatal pig pancreatic islet-like cell clusters in an extracellular matrix.

Islet-like cell clusters (ICCs), formed from single cells of pig pancreas in suspension culture, were embedded in an extracellular matrix. It was recently reported that nicotinamide prevented dissolution of the extracellular matrix by the ICCs. In this experiment, various conditions for embedded culture of ICCs in an extracellular matrix were studied, in an attempt to maintain the function as well as the extracted insulin content of culture specimens. The ICCs in the matrix were refed with RPMI 1640, containing 10 mM nicotinamide, 10% fetal bovine serum (FBS), 11 mM D-glucose and with or witho

Red cell survival after aortic valve replacement with Björk-Shiley prosthesis in presence of sickle-cell trait.

A case of aortic valve replacement with a Björk-Shiley disc prosthesis in a patient with sickle-cell trait is presented. Six months after operation red cell survival was not significantly reduced. On theoretical and clinical grounds it is concluded that the presence of sickle-cell trait does not contribute to late postoperative haemolysis after heart valve replacement.

From neural loss to regeneration: modulating cell death to enhance pluripotent stem cell graft survival and integration.

Cerebrovascular and neurodegenerative diseases rank among the leading causes of death worldwide and represent an increasing socioeconomic burden, particularly in aging populations. Pluripotent stem cell (PSC)-based therapies have emerged as promising strategies for replacing lost neurons and restoring neural circuits in disorders of the central nervous system (CNS). However, major barriers remain, including poor survival, limited integration, and variable functional maturation of transplanted cells. These challenges currently limit the reproducibility and clinical translation of PSC-based ther

Effects of naphthyl derivatives on cell physiology of human leukaemia cells: Survival, cell cycle arrest and apoptosis.

By 2030, the incidence of new cases of cancer worldwide is expected to have increased by 18.1%, with a 22% increase in mortality. Leukaemia is the most common childhood cancer, and drug resistance remains a major therapeutic challenge. Many factors contribute to drug resistance, including inhibition of apoptotic cell death. Natural product-based drugs have led to significant advances in the treatment of human cancer. Due to their polyphenol structure, flavonoids exhibit various pharmacological properties, including antitumor activities. Here we evaluated the effects of twenty compounds includi

ATF5 promotes malignant T cell survival through the PI3K/AKT/mTOR pathway in cutaneous T cell lymphoma.

BACKGROUNDS: Cutaneous T cell lymphoma (CTCL) is a non-Hodgkin lymphoma characterized by skin infiltration of malignant T cells. The biologi … al importance, lentivirus-mediated gene knockdown was conducted in two CTCL cell lines Myla and H9. Cell survival was assessed by examining cell viability, colony-forming ability, in-vivo tumor growth in xenograft models, apoptosis rate and cell-cycle distribution. RNA sequencing was employed to investigate the underlying mechanisms. RESULTS: Activating transc …

Enhancement of Subcutaneously Transplanted β Cell Survival Using 3D Stem Cell Spheroids with Proangiogenic and Prosurvival Potential.

Islet transplantation has been demonstrated to be a promising therapy for type 1 diabetes mellitus. Although it is a minimally invasive operating procedure and provides easy access for graft monitoring, subcutaneous transplantation of the islet only has limited therapeutic outcomes, owing to the poor capacity of skin tissue to foster revascularization in a short period. Herein, 3D cell spheroids of clinically accessible umbilical cord blood mesenchymal stem cells and human umbilical vein endothelial cells are formed and employed for codelivery with β cells subcutaneously. The 3D stem cell sphe

The deubiquitinase USP34 stabilizes SOX2 and induces cell survival and drug resistance in laryngeal squamous cell carcinoma.

Recent studies showed that the deubiquitinase ubiquitin-specific protease 34 (USP34) was involved in the tumorigenesis of several tumors, but its function and mechanism are still unclear in laryngeal squamous cell carcinoma (LSCC). In this study, we found that USP34 and SOX2 were elevated in LSCC tumor tissues, and we also found that USP34 expression was positively correlated with SOX2 expression. Our further studies showed that USP34 regulated the protein level of SOX2 in LSCC cells, but not the mRNA level, which suggested that USP34 stabilized SOX2. Moreover, USP34, as a deubiquitinase, coul

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… In the present study, we demonstrated that USP34 promoted LSCC cell survival and drug resistance by stabilizing SOX2, and targeting USP34/SOX2 axis may be a promising strategy to combat LSCC. … USP34 regulated human pancreatic cancer cell survival via AKT and PKC pathways . Biol Pharm Bull . 2019 ; 42 ( 4 ): 573 – 579 . 30686807 10.1248/bpb.b18-00646 11 Lui TT , Lacroix C , Ahmed SM , Goldenberg SJ , Leach CA , Daulat AM , et al. …

Cerebrospinal fluid from Alzheimer patients affects cell-mediated nerve growth factor production and cell survival in vitro.

Alzheimer's disease (AD) is characterized by early degeneration of cholinergic neurons and decreased levels of nerve growth factor (NGF). Th … involved in inflammatory pathways to have an altered expression in AD CSF compared to LBD and SCI. Cell survival and NGF-release were not affected by Aβ. NGF-release was affected by IL-1β, suggesting that inflammation has a negative effect on ECB cells.

Honokiol induces cell cycle arrest and apoptosis via inhibition of survival signals in adult T-cell leukemia.

BACKGROUND: Honokiol, a naturally occurring biphenyl, possesses anti-neoplastic properties. We investigated activities of honokiol against adult T-cell leukemia (ATL) associated with human T-cell leukemia virus type 1 (HTLV-1). METHODS: Cell viability was assessed using colorimetric assay. Propidium iodide staining was performed to determine cell cycle phase. Apoptotic effects were evaluated by 7A6 detection and caspases activity. Expressions of cell cycle- and apoptosis-associated proteins were analyzed by Western blot. We investigated the efficacy of honokiol in mice harboring tumors of HTL

Kidney size and cancer-specific survival for patients undergoing nephrectomy for pT1 clear cell renal cell carcinoma.

OBJECTIVE: To examine the association between kidney size and renal cell carcinoma (RCC) death among patients with Stage pT1 clear cell RCC undergoing surgery. METHODS: We used a case-cohort design and evaluated 191 patients from our Nephrectomy Registry who had undergone open radical nephrectomy for unilateral, sporadic, Stage pT1N0/NxM0, noncystic clear cell RCC from 1989 to 2004. Of these, 47 patients died of RCC ("cases") and 144 patients were alive at the last follow-up visit or had died of other causes ("cohort"). Univariate and multivariate associations with RCC death were evaluated us

Evaluation of red blood cell labelling methods based on a statistical model for red blood cell survival.

The aim of this work is to compare different labelling methods that are commonly used to estimate the lifespan of red blood cells (RBCs), e.g. in anaemia of renal failure, where the effect of treatment with erythropoietin depends on the lifespan of RBCs. A previously developed model for the survival time of RBCs that accounts for plausible physiological processes of RBC destruction was used to simulate ideal random and cohort labelling methods for RBCs, as well as the flaws associated with these methods (e.g. reuse of label and loss of the label from the surviving RBCs). Random labelling with

Effects of Adult Müller Cells and Their Conditioned Media on the Survival of Stem Cell-Derived Retinal Ganglion Cells.

Retinal neurons, particularly retinal ganglion cells (RGCs), are susceptible to the degenerative damage caused by different inherited condit … etina) and we have examined whether Müller glia and the factors they secrete could promote RGC-like cell survival in organoid cultures. Accordingly, stem cell-derived RGC-like cells were co-cultured with adult Müller cells or Müller cell-conditioned media was added to the cultures. Remarkably, RGC-like cell survival was substantially enhanced in both culture co …

A FOXP3+ cell-rich microenvironment associates with better overall survival after CAR-T cell therapy in relapsed/refractory B-cell lymphoma.

CAR-T cell therapy has revolutionized the treatment of non-Hodgkin B-lymphomas, but relapse rates remain unacceptably high, and resistance mechanisms are still unclear. A key challenge of T-cell-based therapy is the immune-suppressive tumor microenvironment, which is rich in immune-suppressive cells, including regulatory T cells (Tregs). Tregs express FOXP3, CD3 and CD25, and their role in B-cell lymphomas treated with CAR-T cells remains uncertain. Using immunohistochemistry, we analyzed 31 pre-infusion and seven post-infusion paired biopsies from patients with relapsed/refractory B-cell lymp

CD34+ cell dose predicts relapse and survival after T-cell-depleted HLA-identical haematopoietic stem cell transplantation (HSCT) for haematological malignancies.

Seventy-eight patients with haematological malignancies, received T-cell-depleted stem cell transplants and cyclosporin followed by delayed add-back of donor lymphocytes to prevent leukaemia relapse. The source of stem cells was bone marrow in 50 patients and granulocyte colony-stimulating factor (G-CSF)-mobilized peripheral blood in 28 patients. In univariate analysis, only the CD34+ cell dose (but not the stem cell source or the T lymphocyte dose) and disease status were predictive for transplant-related mortality, relapse and survival. Patients receiving >/= 3 x 106 CD34+ cells/kg had an ov