Isolation and characterization of feline dental pulp stem cells4 answersFeline dental pulp stem cells (fDPSCs) were successfully isolated and characterized in multiple studies. These cells displayed clonogenic and proliferative abilities, multipotency, immunophenotype, and signs of chromosomal instability. The isolation method involved explant culture from young cats, with subsequent characterization through various assays. Additionally, a chemically defined medium containing human serum was used for isolation and proliferation of dental pulp stem cells, demonstrating their multilineage differentiation potential and therapeutic applications. Canine dental pulp cells (cDPCs) were also studied, showing higher proliferation capacity than bone marrow stromal cells and promoting neuritogenesis through neurotrophic factors secretion. Furthermore, immature dental pulp stem cells (IDPSC) expressing embryonic stem cell markers were isolated, capable of uniform differentiation into various cell types and engrafting in vivo.
Isolation of mesenchymal stem cells from bone marrow5 answersMesenchymal stem cells (MSCs) can be isolated from bone marrow. Various studies have successfully isolated and characterized MSCs from different animal species, including forest musk deer, mouse, rat, and porcine. These studies used different methods such as in vitro culture protocols, magnetic-activated cell sorting (MACS), and whole bone marrow adherent method to isolate and purify MSCs. The isolated MSCs exhibited characteristics of MSCs, including spindle-like cell morphology, expression of MSC marker genes and proteins, and the ability to differentiate into multiple cell lineages such as osteoblasts, adipocytes, and chondrocytes. The isolation methods used were effective in obtaining high-purity MSCs with good proliferative ability and pluripotency. These findings provide a basis for future research and applications of MSCs in cell therapy, tissue engineering, and regenerative medicine.
Isolation and characterization of exosomes5 answersExosomes are small extracellular vesicles that are actively secreted by cells and play a role in intercellular communication and modulation of cellular responses. Various methods have been developed for the isolation and characterization of exosomes, including ultracentrifugation, ultrafiltration, and density gradient ultracentrifugation with sucrose. These methods involve obtaining fluids containing exosomes, isolating exosomes using centrifugation and density gradient techniques, and assessing the purity and yield of the isolated exosomes. Exosomes can be isolated from different sources, such as cell culture supernatants, biological fluids, and plasma. The isolated exosomes can be characterized using techniques such as electron microscopy, mass spectrometry, and western blot analysis. The characterization of exosomes is important for understanding their composition and function, and for the development of diagnostic methods and therapeutic approaches based on nanobiology.
What is the most common sources of tissue for mesenchymal stem cells?5 answersMesenchymal stem cells (MSCs) can be obtained from various tissue sources including bone marrow, adipose tissue, umbilical cord, synovial tissue, breast milk, menstrual blood, dentine pulp, liver, skeletal muscle, amniotic fluid, and cord blood. The most common sources of tissue for MSCs are bone marrow and adipose tissue. These sources have been extensively studied and are widely used in clinical trials and regenerative medicine applications. Other sources such as umbilical cord, synovial tissue, breast milk, menstrual blood, dentine pulp, liver, skeletal muscle, amniotic fluid, and cord blood are also being explored for their potential use in MSC-based therapies. However, it is important to consider the biological characteristics and specificities of MSCs derived from different tissue sources when selecting the most suitable source for a particular application.
What is the MWCO to use for ultracentrifugation to process human MSC secretomes?3 answersThe molecular weight cut-off (MWCO) for ultracentrifugation to process human MSC secretomes was not mentioned in the abstracts provided.
What are the characteristic of swine?4 answersSwine, or pigs, have several characteristics that make them valuable animal models in biomedical research. They have high similarities to humans in terms of anatomy and immune system functions, with over 80% resemblance in analyzed parameters. Pigs are also easily bred and have fewer emotional problems associated with their use in experiments compared to other animals like dogs or monkeys. They have indwelling cannulas that enable stress-free repetitive sampling. Pigs are also suitable for long-term experiments, with minipigs available for this purpose. Additionally, pigs can be kept under germfree conditions to study the effects of microbiota. Their lung has been used for immune engineering and extracorporeal preservation. Pigs can be genetically modified, making them ideal for future xenotransplantation research. Overall, pigs possess anatomical, physiological, and genetic similarities to humans, making them valuable models for obesity, diabetes, cardiovascular, and other biomedical research.