Evidence is mounting that hematopoietic stem cells (HSCs) play a critical role in bone marrow regeneration and tissue renewal, for which migration is an obvious prerequisite. Computer-aided analysis and a three-dimensional collagen matrix assay enabled us to analyze single-cell migratory characteristics of stromal cell-derived factor-1 alpha (SDF-1 alpha)-stimulated cord blood-derived HSCs. We defined and resolved specific migratory parameters in spontaneous and SDF-1 alpha-induced migration of these cells. The addition of interleukin 6 to the culture medium led to differential SDF-1 alpha-stimulated migratory response, which comprised a recruitment of nonmoving cells and an increase in speed and frequency of pauses but a decrease in pause duration. We were thus able to decipher the exact parameters that result in an increase in the migration of HSCs and demonstrate that extensive analysis of single-cell behavior is elementary in the study of stem cell migration.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1634/stemcells.22-6-890 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Role of the human cytochrome b561 family in iron metabolism and tumors (Review).
Oncol Lett
March 2025
Pathology Department, Qinghai University Affiliated Hospital, Xining, Qinghai 810001, P.R. China.
The human cytochrome b561 (hCytb561) family consists of electron transfer transmembrane proteins characterized by six conserved α-helical transmembrane domains and two β-type heme cofactors. These proteins contribute to the regulation of iron metabolism and numerous different physiological and pathological processes by recycling ascorbic acid and maintaining iron reductase activity. Key members of this family include cytochrome b561 (CYB561), duodenal CYB561 (Dcytb), lysosomal CYB561 (LCytb), stromal cell-derived receptor 2 (SDR2) and 101F6, which are widely expressed in human tissues and participate in the pathogenesis of several diseases and tumors.
View Article and Find Full Text PDFMesenchymal stromal cell-derived extracellular vesicles as nanotherapeutics for concanavalin a-induced hepatitis: modulating the gut‒liver axis.
Stem Cell Res Ther
January 2025
Biotherapy Centre, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, P.R. China.
Background: As cell-free nanotherapeutics, extracellular vesicles derived from mesenchymal stem cells (MSC-EVs) have shown potential therapeutic action against liver diseases. However, their effects on autoimmune hepatitis (AIH) are not yet well understood.
Methods And Results: In this study, we utilized a well-established concanavalin A (Con A)-induced fulminant hepatitis mouse model to investigate the effects of MSC-EVs on AIH.
Forty Years of the Use of Cells for Cartilage Regeneration: The Research Side.
Pharmaceutics
December 2024
Laboratorio RAMSES, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano, 1/10, 40136 Bologna, Italy.
The treatment of articular cartilage damage has always represented a problem of considerable practical interest for orthopedics. Over the years, many surgical techniques have been proposed to induce the growth of repairing tissue and limit degeneration. In 1994, the turning point occurred: implanted autologous cells paved the way for a new treatment option based more on regeneration than repair.
View Article and Find Full Text PDFChemokine CXCL12 Activates CXC Receptor 4 Metastasis Signaling Through the Upregulation of a CXCL12/CXCR4/MDMX (MDM4) Axis.
Cancers (Basel)
December 2024
Department of Biological Sciences, Hunter College, City University of New York, Belfer Building, New York, NY 10021, USA.
Background: The metastasis-promoting G-protein-coupled receptor CXC Receptor 4 (CXCR4) is activated by the chemokine CXCL12, also known as stromal cell-derived factor 1 (SDF-1). The CXCL12/CXCR4 pathway in cancer promotes metastasis but the molecular details of how this pathway cross-talks with oncogenes are understudied. An oncogene pathway known to promote breast cancer metastasis in MDA-MB-231 xenografts is that of Mouse Double Minute 2 and 4 (MDM2 and MDM4, also known as MDMX).
View Article and Find Full Text PDFIntra-articular Injections of CXCR4-Overexpressing Human Cartilage-Derived Progenitor Cells Improve Meniscus Healing and Protect Against Posttraumatic Osteoarthritis in Immunocompetent Rabbits.
Am J Sports Med
January 2025
Department of Orthopaedics, Warren Alpert Medical School of Brown University/Rhode Island Hospital, Providence, Rhode Island, USA.
Background: Meniscal injuries that fail to heal instigate catabolic changes in the knee's microenvironment, posing a high risk for developing posttraumatic osteoarthritis (PTOA). Previous research has suggested that human cartilage-derived progenitor cells (hCPCs) can stimulate meniscal repair in a manner that depends on stromal cell-derived factor 1 (SDF-1) pathway activity.
Hypothesis: Overexpressing the SDF-1 receptor CXCR4 in hCPCs will increase cell trafficking and further improve the repair efficacy of meniscal injuries.
Want 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!