Erythroblast enucleation is thought to be largely dependent on signals mediated by other cells, such as macrophages. In an attempt to improve the in vitro production of red blood cells (RBCs) from immature hematopoietic progenitor cells, we have developed a method to produce enucleated RBCs efficiently in the absence of feeder cells. Our method may represent an efficient way to produce transfusable RBCs on a large scale from hematopoietic progenitors.
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http://dx.doi.org/10.1038/nbt1245 | DOI Listing |
Biomacromolecules
December 2024
MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, China.
-Acetyl cysteine (NAC) is an essential molecule that boosts acute lung injury (ALI) defense via its direct antioxidant capability. Nevertheless, the therapeutic use of NAC is limited due to its poor bioavailability and short half-life. In this study, NAC was grafted to the polyurethane consisting of poly(propylene fumarate), poly(thioketal), and 1,6-hexamethylene diisocyanate (PFTU) to reduce excessive oxidative stress and inflammatory factors in ALI.
View Article and Find Full Text PDFStem Cells Transl Med
December 2024
NEI/OSCTRS/OGVFB, Bethesda, MD, United States.
Retinal pigment epithelium (RPE) atrophy is a significant cause of human blindness worldwide, occurring in polygenic diseases such as age-related macular degeneration (AMD) and monogenic diseases such as Stargardt diseases (STGD1) and late-onset retinal degeneration (L-ORD). The patient-induced pluripotent stem cells (iPSCs)-derived RPE (iRPE) model exhibits many advantages in understanding the cellular basis of pathological mechanisms of RPE atrophy. The iRPE model is based on iPSC-derived functionally mature and polarized RPE cells that reproduce several features of native RPE cells, such as phagocytosis of photoreceptor outer segments (POS) and replenishment of visual pigment.
View Article and Find Full Text PDFStem Cells Transl Med
December 2024
Department of Orthodontics, Division of Craniofacial and Molecular Genetics, Tufts University School of Dental Medicine, Boston, MA 02111, United States.
The use of dental implants to replace lost or damaged teeth has become increasingly widespread due to their reported high survival and success rates. In reality, the long-term survival of dental implants remains a health concern, based on their short-term predicted survival of ~15 years, significant potential for jawbone resorption, and risk of peri-implantitis. The ability to create functional bioengineered teeth, composed of living tissues with properties similar to those of natural teeth, would be a significant improvement over currently used synthetic titanium implants.
View Article and Find Full Text PDFCell Tissue Bank
December 2024
Division of Shoulder and Elbow Surgery, Rothman Orthopaedic Institute, Philadelphia, PA, USA.
Tissue engineering and cartilage transplantation constitute an evolving field in the treatment of osteoarthritis, with therapeutic and clinical promise shown in autologous chondrocyte implantation. The aim of this systematic review is to explore current clinical trials that utilized autologous chondrocyte transplantation (ACT) and assess its efficacy in the treatment of osteoarthritis. PubMed, Ovid MEDLINE, and Google-Scholar (pages 1-20) were searched up until February 2023.
View Article and Find Full Text PDFJ Mol Histol
December 2024
Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, P.O.Box 16635-148, Tehran, Iran.
Embryonic development during the preimplantation stages is highly sensitive and critically dependent on the reception of signaling cues. The precise coordination of diverse pathways and signaling factors is essential for successful embryonic progression. Even minor disruptions in these factors can result in physiological dysfunction, fetal malformations, or embryonic arrest.
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