Results 11 to 20 of about 54,753 (262)
Companion Blood Cells Control Ovarian Stem Cell Niche Microenvironment and Homeostasis [PDF]
Cell Reports, 2015 The extracellular matrix plays an essential role for stem cell differentiation and niche homeostasis. Yet, the origin and mechanism of assembly of the stem cell niche microenvironment remain poorly characterized.
Véronique Van De Bor +7 more
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Live imaging of companion cells and sieve elements in Arabidopsis leaves.
PLoS ONE, 2015 The phloem is a complex tissue composed of highly specialized cells with unique subcellular structures and a compact organization that is challenging to study in vivo at cellular resolution.
Thibaud Cayla +7 more
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Companion cell mediates wound-stimulated leaf-to-leaf electrical signaling. [PDF]
Proc Natl Acad Sci U S ALeaf wounding triggers rapid long-range electrical signaling that initiates systemic defense responses to protect the plants from further attack. In Arabidopsis, this process largely depends on clade three GLUTAMATE RECEPTOR-LIKE ( GLR ) genes GLR3.3 and ...
Wu Q, Li Y, Chen M, Kong X.
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A pocket companion to cell-free DNA (cfDNA) preanalytics [PDF]
Tumor Biology, 2023 The cumulative pool of cell-free DNA (cfDNA) molecules within bodily fluids represents a highly dense and multidimensional information repository. This “biological mirror” provides real-time insights into the composition, function, and dynamics of the diverse genomes within the body, enabling significant advancements in personalized molecular medicine.
Abel J, Bronkhorst, Stefan, Holdenrieder
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Characterization of companion animal pluripotent stem cells [PDF]
Cytometry Part A, 2017 AbstractPluripotent stem cells have the capacity to grow indefinitely in culture and differentiate into derivatives of the three germ layers. These properties underpin their potential to be used in regenerative medicine. Originally derived from early embryos, pluripotent stem cells can now be derived by reprogramming an adult cell back to a pluripotent
Y Z, Paterson, C, Kafarnik, D J, Guest
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Companion cells: a diamond in the rough [PDF]
Journal of Experimental Botany, 2016 Vascular plants have developed highly specialized cells to transport nutrients and developmental signals. The differentiation process includes the degradation of multiple organelles of the sieve element cells (SEs) to facilitate transport and, as a consequence, SEs become dependent on neighboring companion cells (CCs). Despite its importance for phloem
Otero, Sofia, Helariutta, Ykä
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Vagrant Stem Cells Draft Their Gene Companions [PDF]
Cell Stem Cell, 2010 In a recent issue of Nature Medicine, Ryan et al. (2010) uncover genetic modifiers of G-CSF responses by hematopoietic progenitors. The authors document a negative role of EGFR signaling and, provided an analogous pathway functions in humans, propose a potential new angle to promote clinical blood stem cell mobilization.
Bonig, Halvard, Papayannopoulou, Thalia
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The companions: regulatory T cells and gene therapy [PDF]
Immunology, 2009 SummaryUndesired immunological responses to products of therapeutic gene replacement have been obstacles to successful gene therapy. Understanding such responses of the host immune system to achieve immunological tolerance to a transferred gene product is therefore crucial.
Saman, Eghtesad +2 more
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Differential Distribution of Proteins Expressed in Companion Cells in the Sieve Element-Companion Cell Complex of Rice Plants [PDF]
Plant and Cell Physiology, 2005 Sieve tubes are comprised of sieve elements, enucleated cells that are incapable of RNA and protein synthesis. The proteins in sieve elements are supplied from the neighboring companion cells through plasmodesmata. In rice plants, it was unclear whether or not all proteins produced in companion cells had the same distribution pattern in the sieve ...
Akari, Fukuda +9 more
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Induction of sucrose synthase in the phloem of phytoplasma infected maize
Biologia Plantarum, 2011 In this study, we have analyzed the expression of the low oxygen inducible sucrose synthase isozyme SH1 (SUS-SH1) in the phloem of maize (Zea mays L.) infected with maize bushy stunt phytoplasma.
J. Brzin +3 more
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