International journal of hematology-oncology and stem cell research最新文献

{"title":"Transduction of Human Fetal Liver Hematopoietic CD34+ Stem and Progenitor Cells into a Cell Line by Enhancing Telomerase Activity.","authors":"Rashmi Bhardwaj, Lalit Kumar, Deepika Chhabra, Atul Sharma, Sujata Mohanty, Narinder Mehra, Vinod Kochupillai","doi":"10.18502/ijhoscr.v18i4.16758","DOIUrl":"10.18502/ijhoscr.v18i4.16758","url":null,"abstract":"<p><p><b>Background</b>: Human fetal liver hematopoietic stem cells have proven potential as therapeutics but lack extensive research due to their limited supply. Even <i>in vitro</i> expanded fetal liver hematopoietic stem cells enter senescence or lose their self-renewal capacity after a few days in culture. The present study aimed to obtain a homogeneous and persistent supply of hematopoietic stem cells from the fetal liver by establishing a cell line through immortalization of cells by enhancing telomerase activity. <b>Materials and Methods</b>: Human fetal liver hematopoietic CD34+ stem and progenitor cells were transformed and immortalized using retroviruses carrying the human telomerase (hTERT) gene. Following transduction, telomerase activity was assessed using the TRAP assay and telomere length was e<i>x</i>amined by Southern blotting in transduced cells. Their characterization was conducted using flowcytometry to analyze the CD34+ population of hematopoietic stem cells and their colony forming potential using colony forming unit (CFU) assay. <b>Results</b>: After transduction with hTERT, the life span of human fetal liver hematopoietic CD34+ stem and progenitor cells were extended to 80 population doublings, without any change in cell morphology or population doubling times. Constitutive hTERT expression enhanced the replicative capacity and prevented terminal differentiation of CD34+ fetal liver hematopoietic stem and progenitor cells (FLHSPCs). Moreover, hTERT-transduced stem cells maintained their telomere length and telomerase activity. <b>Conclusion:</b> By introducing telomerase activity into hematopoietic stem and progenitor cells, their lifespan can be extended while maintaining stemness. These modified cells hold promise for <i>in</i> <i>vitro</i> research focused on studying hematopoietic stem cells derived from fetal liver.</p>","PeriodicalId":94048,"journal":{"name":"International journal of hematology-oncology and stem cell research","volume":"18 4","pages":"330-343"},"PeriodicalIF":0.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11652691/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142866816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Knowledge and Attitudes of Faculty of Health Sciences Students towards Hematopoietic Stem Cell Donation.","authors":"Ramazan Çiçek, Ayten Dinç","doi":"10.18502/ijhoscr.v18i4.16761","DOIUrl":"10.18502/ijhoscr.v18i4.16761","url":null,"abstract":"<p><p><b>Background:</b> Hematopoietic stem cell transplantation is a life-saving treatment method for numerous diseases. This study aims to determine the knowledge and attitudes of Faculty of Health Sciences students in a university towards hematopoietic stem cell donation and descriptive cross-sectional design. <b>Materials and Methods:</b>  The study participants consisted of students studying at the Faculty of Health Sciences of a university in western Turkey. A total of 345 students were available to complete a survey. The data were collected online through the Google Form. Data were analyzed using the SPSS 25 program (IBM Corp.; Armonk, NY, USA). Moreover, the Chi-square test, independent samples t-test, and one-way ANOVA were used in this study. <b>Results: </b> 25.2% were registered at \"The Turkish Stem Cell Coordination Center\", and 89.1% of the unregistered ones wanted to be a stem cell donor. The university students had a moderate level of knowledge about stem cell donation. While the participants were more knowledgeable about stem cell collection with the peripheral method, they had poor knowledge of stem cell collection methods from the bone marrow and stem cell donation processes. There was a significant correlation between the students' level of knowledge about hematopoietic stem cell donation and their university year, occupation, age, graduate school, and parents' educational level (p<0.05). <b>Conclusion: </b> In this study, it was found that the university students had insufficient knowledge on hematopoietic stem cell donation and their intention to donate stem cells was high.  Holding training sessions, seminars, and conferences for university students as future health professionals to raise their awareness of stem cell donation is recommended.  The fact that new-generation health professionals are sensitive and educated about stem cell donation can contribute to increasing stem cell donations in society.</p>","PeriodicalId":94048,"journal":{"name":"International journal of hematology-oncology and stem cell research","volume":"18 4","pages":"367-376"},"PeriodicalIF":0.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11652694/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142866858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aplastic Anemia Following COVID-19 Vaccination: A Systematic Review of Case Reports and Case Series","authors":"Nelson Luis Cahuapaza-Gutierrez, Tsuriel Sofía Campos-Escalante","doi":"10.18502/ijhoscr.v18i3.16111","DOIUrl":"https://doi.org/10.18502/ijhoscr.v18i3.16111","url":null,"abstract":"Aplastic anemia (AA) is the prototypical bone marrow failure syndrome due to the destruction of hematopoietic stem cells by cytotoxic T cells. According to case reports, vaccines could lead to the development of AA. We conducted the present systematic review to evaluate cases of AA following vaccination against coronavirus disease (COVID-19). \u0000We searched the following databases: PubMed, Scopus, and EMBASE in English, Portuguese, and Spanish languages until April 24, 2023. Published reports and case series on the occurrence of AA following vaccination against COVID-19 were included. The Joanna Brigs Institute was used to assess study quality and risk of bias. \u0000Six studies were selected from 102 research studies and data were extracted according to the inclusion criteria. All case reports and case series reported the occurrence of AA following COVID-19 vaccination. AA events were mainly observed in vaccines with messenger ribonucleic acid technology (Moderna; Pfizer-BioNTech). AA was diagnosed by bone marrow biopsy and severity was determined by Camitta criteria. \u0000All cases of AA were properly diagnosed. The sample size was small; therefore, further investigations are required to demonstrate and elucidate the complete pathophysiological mechanisms of AA development after receiving COVID-19 vaccination.","PeriodicalId":94048,"journal":{"name":"International journal of hematology-oncology and stem cell research","volume":"58 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141813217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Response-Based Approach for Pediatric Hodgkin Lymphoma in Nations with Restricted Resources","authors":"Usama Al‐Jumaily, Hamid D. Habeeb Rjeib, Sabah Al-Mosawy, Safa Faraj, Monika Metzger","doi":"10.18502/ijhoscr.v18i3.16110","DOIUrl":"https://doi.org/10.18502/ijhoscr.v18i3.16110","url":null,"abstract":"Background: Hodgkin lymphoma (HL) management varies throughout developing nations. This observational study aims to present the results of children having HL who received various combinations of chemotherapy treatment. The response-based method was used regardless of the risk classification. \u0000Materials and Methods: We recruited patients≤ 18 years of age diagnosed with HL in an Iraqi cancer center between January 2014 and December 2021. By stratifying patients, three risk categories were identified. Every patient initially received two cycles of ABVD as induction chemotherapy. Following induction chemotherapy, patients showing a full radiological response continued on ABVD chemotherapy for 4-6 cycles without receiving radiotherapy. Patients showing a modest initial response received three additional courses of COPDac next to the third cycle of ABVD, followed by radiotherapy. \u0000Results: This study included fifty-nine patients with a median age of 7 years. Stage III patients accounted for 33.9% (n=20), then stage II (32.2%). B symptoms were present in 25 patients. Eleven children had initial splenic involvement. Fifty-two individuals (n = 19; 32.2%) had bulky disease. Mixed cellularity was the most prevalent histology (n=44). The median duration of follow-up was 2.7 years. EFS was 78% ±10%, and survival was 92% at 5-year estimation. Bulky disease was the only factor with a substantial unfavorable impact on the result. \u0000Conclusion: Response-based approach is a valuable strategy in nations with limited resources to prevent long-term sequelae from unnecessary radiotherapy.   ","PeriodicalId":94048,"journal":{"name":"International journal of hematology-oncology and stem cell research","volume":"143 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141810832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unleashing the Impact of Exosomes Derived from Human Placental Mesenchymal Stem Cells (hPMSCs) on U-266 Myeloma Cell Line","authors":"Ayda Baghery Saghchy Khorasani, Mina Soufizomorrod, Davood Bashash","doi":"10.18502/ijhoscr.v18i3.16109","DOIUrl":"https://doi.org/10.18502/ijhoscr.v18i3.16109","url":null,"abstract":"Multiple myeloma (MM) is a malignancy of plasma cells, terminally differentiated B cells, with complications like hypercalcemia, renal failure, anemia, and bone disease, which are also known as CRAB criteria. MM develops from monoclonal gammopathy of unknown significance (MGUS), a pre-malignant plasma cell dyscrasia. Over some time, MGUS has the potential to progress into smoldering multiple myeloma (SMM), which can evolve into MM. MM rarely progresses into plasma cell leukemia (PCL), a condition in which malignant plasma cells no longer stay in the bone marrow niche and circulate in the peripheral blood. In MM, various soluble factors play important roles, and interleukin-6 has different vital roles. \u0000 Interleukin-6, an inflammatory cytokine, has significant roles in the growth, survival, angiogenesis, metastasis, and apoptosis resistance in MM. Interleukin-6 is produced and secreted by both autocrine from myeloma cells and paracrine from bone marrow stromal cells. To tackle MM, various therapeutic approaches were applied over many years, and according to the results, most patients with MM can respond well to first-line treatment. However, the majority of patients may relapse as conventional treatment may not be curative. So, there is an urgent need for novel cell-based and cell-free therapeutic strategies, such as mesenchymal stem cell-based therapies and their products to offer new therapeutic strategies for MM. \u0000Materials and Methods: In the present study, we investigated the impacts of exosomes derived from human placental mesenchymal stem cells (hPMSCs) on apoptosis and interleukin-6 expression in a myeloma cell line, U-266, for the first time. hPMSCs were isolated from the human placenta and cultured in a DMEM medium. After characterizing the cells and acknowledging their identity, they underwent several passages and their supernatant was collected to harvest exosomes. The exosomes were isolated by ultracentrifugation and characterized by DLS and TEM, and their concentration was measured by BCA protein assay. U266 cells were treated with different concentrations of exosomes and then MTT and annexin/propidium iodide flow cytometry tests were performed to evaluate cell viability. Afterward, a real-time PCR test was performed to evaluate interleukin-6 gene expression. \u0000Results: According to our findings, treatment of U-266 cells with hPMSCS-derived exosomes led to the preservation of myeloma cells without changes in their cell cycle. Surprisingly, treatments did not hinder the expression of interleukin-6 in the myeloma cells. \u0000Conclusion: In MM patients, interleukin-6 plays different roles, and it is a desirable target to design new therapeutic strategies. To evaluate the effects of new therapeutic strategies, we designed and performed our study to estimate the effects of cell-free therapeutic strategy.  In the present study, the impacts of hPMSCS-derived exosomes on the viability of MM cells and interleukin-6 gene expression were evaluated. ","PeriodicalId":94048,"journal":{"name":"International journal of hematology-oncology and stem cell research","volume":"3 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141813722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cyclophosphamide- Antifungals Interactions in Patients Undergoing Hematopoietic Stem Cell Transplantation: What Should We Know About it?","authors":"Sogol Zarrabi, Mohammad Vaezi, B. Shahrami","doi":"10.18502/ijhoscr.v18i3.16112","DOIUrl":"https://doi.org/10.18502/ijhoscr.v18i3.16112","url":null,"abstract":"The Article Abstract is not available.","PeriodicalId":94048,"journal":{"name":"International journal of hematology-oncology and stem cell research","volume":"89 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141812726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Relationship between Breast Cancer and Cardiac Myxoma","authors":"Nur Hürsoy, Merve Solak, Demet Nak","doi":"10.18502/ijhoscr.v18i3.16113","DOIUrl":"https://doi.org/10.18502/ijhoscr.v18i3.16113","url":null,"abstract":"The Article Abstract is not available.","PeriodicalId":94048,"journal":{"name":"International journal of hematology-oncology and stem cell research","volume":"136 52","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141811046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Epidemiological, Demographic, and Clinical Characteristics of Von Willebrand Disease Patients in Zahedan City, Iran: A Descriptive Study","authors":"Majid Naderi, Benyamin Rhmati, Hoora Ganjali, Saeedeh Yaghoubi, Mohammad Sadra Harifi-Mood, Seyed Ghader Azizi","doi":"10.18502/ijhoscr.v18i3.16102","DOIUrl":"https://doi.org/10.18502/ijhoscr.v18i3.16102","url":null,"abstract":"Background: Von Willebrand disease (VWD) is one of the most common coagulative diseases, so identifying the effective factors in preventing this complication is essential. The study aimed to evaluate the frequency of demographic and epidemiological findings in VWD patients referred to a hospital in Zahedan, Iran. \u0000Materials and Methods: This study was performed on 76 patients with VWD referred to Hazrat Ali-Asghar Hospital in Zahedan City, Sistan, and Baluchestan province. After obtaining consent from the patients, the demographic information and clinical symptoms of the disease were recorded. All statistical analyses were performed using SPSS 22.0 software. All descriptive data were expressed as mean ±SD and percent (%) depending on the continuous and dichotomous variables. A P-value ≤0.05 was considered significant statistically. \u0000Results: The present study results showed that the highest age group of VWD patients at the time of disease diagnosis was in the age group 1-5 years (47.3%), and most patients had type III VWD (80.3%). It was also found that 67.1% of patients had a positive family history and their parents' consanguineous marriage (77.6%). The most common complaints were epistaxis (88.15%), cutaneous bleeding (78.94%), and oral cavity bleeding (61.84%), respectively. \u0000Conclusion: Due to the high prevalence of VWD in consanguineous marriages and an increase in adverse complications and symptoms in VWD patients, proper diagnosis and screening at an early age, especially in people with family history, is essential. Efforts are needed to develop national registries and widely provide the required and available basic services for diagnosis and treatment. \u0000 ","PeriodicalId":94048,"journal":{"name":"International journal of hematology-oncology and stem cell research","volume":"62 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141817630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluate the Efficacy of Myeloablative Conditioning Regimens for Allogeneic Hematopoietic Stem Cell Transplantation in Acute Myelogenous Leukemia at BTH, Vietnam","authors":"T. Nguyen, Huu Than Huynh, Hung Quang Tran, Quang The Nguyen, P. Huynh, Nam Duy Hoang, Tuan Xuan Ma, Duong Thi Thuy Do, Dung Chi Phu, Man Van Huynh","doi":"10.18502/ijhoscr.v18i3.16106","DOIUrl":"https://doi.org/10.18502/ijhoscr.v18i3.16106","url":null,"abstract":"Background: Busulfan plus cyclophosphamide (Bu/Cy) is considered one of the classical myeloablative conditioning regimens. However, its toxicity can significantly increase mortality rates. To reduce both acute and long-term complications after hematopoietic stem cell transplantation (HSCT), newer conditioning regimens are being investigated. The purposes of this study were to assess the efficacy and safety of busulfan plus cyclophosphamide (Bu/Cy) and busulfan plus fludarabine (Bu/Flu) conditioning regimen for allogeneic HSCT (allo-HSCT) in acute myelogenous leukemia (AML). \u0000Materials and Methods: We conducted a single-center, retrospective analysis of AML, both adults and children, who underwent either Bu/Cy or Bu/Flu conditioning regimen for allo-HSCT and received peripheral blood stem cell transplants from HLA-matched donors. \u0000Results: From 2005 – 2019, 49 AML patients receiving Bu/Cy and 21 receiving Bu/Flu were identified, meeting inclusion criteria. The two groups showed no significant differences in age, gender, disease status pre-transplant, the median time to neutrophil and platelet engraftment. Bu/Flu patients had a shorter duration of neutropenia (median 7 days vs 10 days, p = 0.001) and shorter duration of thrombocytopenia (median 10 days vs 15 days, p = 0.016) than Bu/Cy.  No difference was observed in disease-free survival (DFS) and overall survival (OS) between the two groups. Both univariate and multivariate analyses showed that age, disease status pre-transplant, and chronic graft-versus-host disease (GvHD) are related to worse DFS and OS. \u0000Conclusion: With similar efficacy to Bu/Cy but faster neutrophil and platelet recovery time, Bu/Flu is suitable as a pre-HSCT conditioning regimen for patients with AML.","PeriodicalId":94048,"journal":{"name":"International journal of hematology-oncology and stem cell research","volume":"35 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141818489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effect of High Intensity Interval Exercise on Platelet Engraftment in Autologous Bone Marrow Transplantation (BMT)","authors":"Tayebe Zarekar, Abbas Hajifathali, S. Ahmadizad","doi":"10.18502/ijhoscr.v18i3.16104","DOIUrl":"https://doi.org/10.18502/ijhoscr.v18i3.16104","url":null,"abstract":"Background: Thrombocytopenia is a frequent complication after hematopoietic stem cell transplantation (HSCT). Although platelet transfusion is the most used treatment for severe thrombocytopenia, it is associated with well-established risks. High-intensity interval exercise (HIIE) results in thrombocytosis. Therefore, this study aimed to reduce thrombocytopenia by increasing platelet count through exercise. \u0000Materials and Methods: Twenty lymphoma and multiple myeloma patients were divided into HIIE and control groups. To determine the maximal exercise capacity, patients in the HIIE group performed a graded exercise test. All patients received granulocyte colony-stimulating factor for 5 days, followed by a HIIE trial. After 5 min warm up at 10 to 20% of peak power, patients in the HIIE group performed an HIIE protocol that included 12 intervals of one-minute work at 100% peak power interspersed by one-minute active rest at 20% of peak power. Patients in the control group were seated for the same duration without any physical activity. Two blood samples were taken before and immediately after the trials and were analyzed for measuring complete blood count. \u0000Results: Platelet count on the day of platelet engraftment in the HIIE group was significantly higher than in the control group (P=0.02). Single-donor platelet transfusion was significantly lower in the HIIE group than in the control group (P=0.05). \u0000Conclusion: Based on the findings of the present study, a short bout of HIIE had a positive effect on platelet engraftment through thrombocytosis and reduced platelet transfusion and its complications, which could be a useful strategy for HSCT patients. \u0000 ","PeriodicalId":94048,"journal":{"name":"International journal of hematology-oncology and stem cell research","volume":"57 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141817949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}