Search results for " stem cell transplantation"

Analysis of MSCs' secretome and EVs cargo: Evaluation of functions and applications

2022

Mesenchymal stem cells (MSCs) can exert different functions and can be used in several medical fields. In the last years, MSC properties have been attributed to their secreted factors such as soluble proteins, cytokines and growth factors. Moreover, a key role is played by the extracellular vesicles (EVs) which lead a heterogeneous cargo of proteins, lipids and small and long non-coding RNAs that interfere with the pathways of the recipient cells. Due to the safeness and easiness in obtaining the secretome, its use is becoming a turning point for the application in physiological and pathological fields. This review summarizes the most recent studies on the use of MSCs secretome, focusing on…

Toxoplasmosis after hematopoietic stem cell transplantation.

2000

In immunocompromised individuals, toxoplasmosis mostly occurs as a reactivation of a latent infection, causing severe to life-threatening disease. Thus, recipients who are seropositive for Toxoplasma gondii before an allogeneic hematopoietic stem cell transplant (HCT) are at highest risk, although primary infections may also cause severe toxoplasmosis. The disease most often affects the central nervous system, but in HCT recipients other organs are involved in more than half of the cases. Because of the alteration of the immune response in these patients, serodiagnosis is not sufficiently reliable in the diagnosis of post-HCT toxoplasmosis, and direct detection of the causative agent is req…

Toxoplasmosis, a severe complication in allogeneic hematopoietic stem cell transplantation: successful treatment strategies during a 5-year single-ce…

1999

Toxoplasmosis is a rare but often fatal complication that occurs after patients undergo allogeneic hematopoietic stem cell transplant. At our institution, toxoplasmosis was diagnosed in 8 of 301 patients who received stem cell transplants. Disseminated toxoplasmosis with a rapid fatal course was observed in 2 patients. Six patients had cerebral toxoplasmosis diagnosed on the basis of neurological signs and observation of the patients' mental confusion, seizures, and typical lesions (which were assessed by computed tomography, magnetic resonance imaging, or both). Seroconversion of antitoxoplasma immunoglobulin and a discovery of toxoplasma deoxyribonucleic acid in the cerebrospinal fluid (c…

Cytomegalovirus DNAemia Burden and Mortality Following Allogeneic Hematopoietic Stem Cell Transplantation: An Area Under a Curve-Based Investigationa…

2018

Biomaterials and bioactive molecules to drive differentiation in striated muscle tissue engineering

2015

International audience; The generation of engineered tissues and organs has entered into the clinical practice in response to the chronic lack of organ donors. In particular, for the skeletal and cardiac muscles the translational potential of tissue engineering approaches has clearly been shown, even though the construction of these tissues lags behind others given the hierarchical, highly organized architecture of striated muscles. Failure of the cardiac tissue leads to cardiovascular diseases, which are the leading cause of death in the developed world (Di Felice et al., 2014). On the other hand, there are many clinical cases where the loss of skeletal muscle due to a traumatic injury, an…

Intravenous Busulfan for Autologous Stem Cell Transplantation in Adult Patients with Acute Myeloid Leukemia: a Survey of 952 Patients on Behalf of th…

2014

Oral busulfan is the historical backbone of the busulfan+cyclophosphamide regimen for autologous stem cell transplantation. However intravenous busulfan has more predictable pharmacokinetics and less toxicity than oral busulfan; we, therefore, retrospectively analyzed data from 952 patients with acute myeloid leukemia who received intravenous busulfan for autologous stem cell transplantation. Most patients were male (n=531, 56%), and the median age at transplantation was 50.5 years. Two-year overall survival, leukemia-free survival, and relapse incidence were 67 +/- 2%, 53 +/- 2%, and 40 +/- 2%, respectively. The non-relapse mortality rate at 2 years was 7 +/- 1%. Five patients died from ve…

Emerging Therapeutic Strategies for Traumatic Spinal Cord Injury

2020

Spinal cord injury (SCI) is a debilitating neurologic condition with tremendous socioeconomic impact on affected individuals and the health care system. The treatment of SCI principally includes surgical treatment and marginal pharmacologic and rehabilitation therapies targeting secondary events with minor clinical improvements. This unsuccessful result mainly reflects the complexity of SCI pathophysiology and the diverse biochemical and physiologic changes that occur in the injured spinal cord. Once the nervous system is injured, cascades of cellular and molecular events are triggered at varying times. Although the cascade of tissue reactions and cell injury develops over a period of days …

Prognostic Impact of Mutant to Wild-Type Ratio and Insertion Site in Acute Myeloid Leukemia with FLT3 Internal Tandem Duplication

2012

Abstract Abstract 785 Background: FLT3 internal tandem duplications (FLT3-ITD) occur in about 25% of acute myeloid leukemia (AML), are associated with cooperating gene mutations (NPM1, DNMT3A), and confer an adverse prognosis. Several studies have indicated that the unfavorable impact of FLT3-ITD is influenced by a number of factors, such as the mutant to wild-type ratio (allelic ratio), insertion site of FLT3-ITD in the beta1 sheet of the tyrosine kinase domain 1, and the molecular background of cooperating mutations. Aims: To evaluate the relative impact of FLT3-ITD allelic ratio and insertion site, as well as cooperating genetic lesions on prognosis and treatment decision making in a lar…

Plerixafor is effective and safe for stem cell mobilization in heavily pretreated germ cell tumor patients.

2010

Up to 10% of germ cell tumor patients require salvage high-dose chemotherapy with stem cell support, achieving cure rates in the range of 10-60%. Stem cell mobilization may be difficult in these patients because of multiple lines of treatment known to seriously hamper stem cell recovery. Plerixafor significantly enhances the success of the CD34+ cell harvest, even in cases where prior mobilization attempts have failed. Six germ cell tumor patients provided informed consent and were included in the compassionate use program. All patients were heavily pretreated, with a median of 3.5 prior lines of therapy. All failed prior mobilization with G-CSF in combination with chemotherapy. Five patien…

Impact of pretreatment characteristics and salvage strategy on outcome in patients with relapsed acute myeloid leukemia

2017

Impact of pretreatment characteristics and salvage strategy on outcome in patients with relapsed acute myeloid leukemia