Ex vivo expansion of hematopoietic stem cells (HSCs) with most current methods can hardly satisfy clinical application requirement. While in vivo, HSCs efficiently self-renew in niche where they interact with 3D extracellular matrix and stromal cells. Therefore, co-cultures of CD34 cells and mesenchyme stem cells derived from human amniotic membrane (hAMSCs) on the basis of biomimetic macroporous three-dimensional (3D) poly(ε-caprolactone) (PCL) scaffolds are developed, where scaffolds and hAMSCs are applied to mimic structural and cellular microenvironment of HSCs. The influence of scaffolds, feeder cells, and contact manners on expansion and stemness maintenance of CD34 cells is investigated in this protocol. Biomimetic scaffolds-dependent co-cultures of CD34 cells and hAMSCs can effectively promote the expansion of CD34 cells; meanwhile, indirect contact is superior to direct contact. The combination of biomimetic scaffolds and hAMSCs represents a new strategy for achieving clinical-scale ex vivo expansion of CD34 cells.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/mabi.201700054 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Circulating endothelial progenitor cells and inflammatory markers in type 1 diabetes after an acute session of aerobic exercise.
Arch Endocrinol Metab
January 2025
Instituto Nacional de Ciência e Tecnologia para Avaliação de Tecnologias em Saúde Hospital de Clínicas de Porto Alegre Porto AlegreRS Brasil Instituto Nacional de Ciência e Tecnologia para Avaliação de Tecnologias em Saúde (IATS) - CNPq/Brasil, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brasil.
Objective: To determine circulating endothelial progenitor cells (EPC) counts and levels of inflammatory markers in individuals with and without type 1 diabetes mellitus (T1DM) in response to an intense aerobic exercise session.
Subjects And Methods: In total, 15 adult men with T1DM and 15 healthy individuals underwent a 30-minute aerobic exercise session on a cycle ergometer at 60% of the peak heart rate. The EPC count (CD45/CD34/KDR), tumor necrosis factor-alpha (TNF-α) and interleukin 6 (IL-6) levels were measured before and 60 minutes after the session.
Thin Layer Chromatography Goes Ultrasmall to Assay Sphingosine Kinase Activation in Single Primary Leukemic Cells.
Anal Chem
January 2025
Department of Bioengineering, University of Washington, SeattleWashington98195, United States.
Cell-to-cell heterogeneity in lipid signaling underlies variations in response and recurrence for many cancers, including leukemias. A highly parallel, miniaturized thin-layer chromatographic platform capable of assaying single cells was developed. Ultrasmall volumes (50 pL) of standard fluorescent lipids were separated with excellent repeatability, reproducibility, and limits of detection.
View Article and Find Full Text PDFSpindle Cell Sarcoma With Novel JAZF1::NUDT5 Gene Fusion: Report of a Previously Undescribed Neoplasm.
Genes Chromosomes Cancer
January 2025
Department of Pathology, NYU Grossman School of Medicine, New York, New York, USA.
Gene fusions involving JAZF1 are a recurrent event in low grade endometrial stromal sarcoma, and have been more recently described in few instances of endometrial stromal sarcoma-like tumors in the genitourinary tract of men. In this article, we describe a previously unreported spindle cell sarcoma harboring an in-frame JAZF1::NUDT5 gene fusion, arising in the chest wall of a 51-year-old man. The tumor had unique morphologic features resembling both endometrial stromal sarcoma and endometrial stromal sarcoma-like tumors, consisting of a mixture of cytologically bland and pleomorphic spindle cells with brisk mitotic activity, within an alternating myxoid and fibrous stroma.
View Article and Find Full Text PDFMammary Gland Reactive Stroma Characterization at Aging After Bisphenol A Exposure During Hormonal Susceptibility Windows.
Cell Biol Int
January 2025
Microscopy and Microanalysis Center, Institute of Biosciences, Letters and Exact Sciences (IBILCE), São Paulo State University (Unesp), São José do Rio Preto, SP, Brazil.
Mammary glands development is influenced by endocrine signaling, which remodels epithelial and stromal compartments. Reactive stroma phenotype is observed when stromal disturbances occur, leading to changes in extracellular matrix composition and occurrence of reactive cell types. One of the triggers of these alterations is endocrine-disrupting chemical exposure, such as bisphenol A (BPA).
View Article and Find Full Text PDFThe establishment of pulp polyp-derived mesenchymal stem cells with normal karyotype.
J Dent Sci
January 2025
Research Institute, Ballys Co. Ltd, Incheon, Republic of Korea.
Background/purpose: Pulp polyp is often eliminated as dental waste. Pulp polyp cells were reported to have high proliferation activity which might be comprised of stem cells. However, little has been known on the presence of stem cells in the pulp polyp.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!