hematopoietic stem/progenitor cells (hspcs) which give rise to different blood cell types are present within the bone marrow microenvironment, especially in flat bones such as skull, vertebrae, pelvis and chest. interacting factors such as stromal derived factor-1/cxcr4, very late antigen-4/vascular cell adhesion molecule-1, lymphocyte function-associated antigen-1/ intercellular adhesion molec...

background: today, hematopoietic stem cells transplantation (hsct) has been accepted as a therapeutic approach and is widely applied in many patients with disorders of hematopoietic systems or patients with malignancies. concomitant use of this therapeutic approach with long term chemotherapeutic procedures and hospitalization requires special care. this study was conducted to examine basic nee...

spermatogonia are the male germ line stem cells whose life long expansion is needed for permanent production of spermatozoa. the present study was designed to examine the effect of hcg treatment on germ cell proliferation following stem cell transplantation in mice. spermatogonial stem cells were isolated from neonatal mice testes and characterized by alkaline phosphatase, immunoreactivity and ...

purpose: to report the early results of transplantation of autologous limbal stem cell cultivated on amniotic membrane in total limbal stem cell deficiency. methods: four eye of 4 patients with total unilateral stem cell deficiency secondary to severe chemical or thermal burn were included. stem cell deficiency was confirmed with impression cytology in all cases. under topical anesthesia, a sma...

Objective(s): High-risk neuroblastoma is a childhood cancer with poorprognosis despite modern multimodality therapy. Internal radiotherapy using131I-metaiodobenzylguanidine (MIBG) is effective for treating the disease even if it isresistant to chemotherapy. The aim of this study is to evaluate the safety and efficacyof 131I-MIBG radiotherapy combined with myeloablative high-dose chemotherapyand...

The introduction and evolution of hematopoietic stem cell transplantation (HSCT) could be traced back to 1950s, to the studies on interactions among irradiation, covering spleen and bone marrow from it and injection of bone marrow cells. Today, HSCT is considered a well-established, effective and promising means of therapy for various malignant and non-malignant medical conditions, both in chil...

background: antibiotic prophylaxis is usually used in allogenic stem cell transplantation, but its use in autologous stem cell transplantation (asct) is controversial. we evaluated the efficacy of ciprofloxacin prophylaxis in asct. materials and methods: to identify the efficacy of ciprofloxacin on the incidence of neutropenic fever and its complications, 72 patients had been admitted to talegh...

isolated extramedullary relapse of chronic myelogenous leukemia (cml) after allogeneic stem cell transplant is rare. there is a case report of a child who developed a granulocytic sarcoma of the maxillary and sphenoid sinuses and lumbosacral spinal cord mass 18 months after allogeneic bone marrow transplant for cml. he was presented with per orbital edema and neurological deficit of lower extre...

background: hematopoietic stem cell transplantation (hsct) is currently the only curative treatment for acute leukemia. as hsct improves the long-term survival, it is necessary to assess the late-onset complications affecting the quality of life following hsct. subjects and methods: the study included 122 patients (65 male, 57 female) with leukemia (72 aml and 50 all) who received transplants f...