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The WIP family of transcription factors comprises the A1d subgroup of C2H2 zinc finger proteins. This family has six members in and most of the known functions have been described by analyzing single knockout mutants. However, it has been shown that and its closest paralogs and have a redundant and essential function in root meristems. It is likely that these and other genes perform more, still unknown, functions. To obtain hints about these other functions, the expression of the six genes was explored. Moreover, phenotypic ana-lyses of overexpressors and mutants revealed functions in modulating organ and cell size, stomatal density, and vasculature development.
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http://dx.doi.org/10.3390/plants11152010 | DOI Listing |
JCI Insight
September 2025
Department of Pharmacology, University of Michigan, Ann Arbor, United States of America.
Cardiac hypertrophy is a common adaptation to cardiovascular stress and often a prelude to heart failure. We examined how S-palmitoylation of the small GTPase, Ras-related C3 botulinum toxin substrate 1 (Rac1), impacts cardiomyocyte stress signaling. Mutation of the cysteine-178 palmitoylation site impaired activation of Rac1 when overexpressed in cardiomyocytes.
View Article and Find Full Text PDFJ Clin Invest
September 2025
Department of Cellular and Molecular Medicine, UCSD, La Jolla, United States of America.
3-O-sulfation of heparan sulfate (HS) is the key determinant for binding and activation of Antithrombin III (AT). This interaction is the basis of heparin treatment to prevent thrombotic events and excess coagulation. Antithrombin-binding HS (HSAT) is expressed in human tissues, but is thought to be expressed in the subendothelial space, mast cells, and follicular fluid.
View Article and Find Full Text PDFRNA Biol
September 2025
Department of Stem Cell Biology, School of Medicine, Konkuk University, Seoul, Republic of Korea.
Neural stem cells (NSCs) are multipotent stem cells with self-renewal capacity, able to differentiate into all neural lineages of the central nervous system, including neurons, oligodendrocytes, and astrocytes; thus, their proliferation and differentiation are essential for embryonic neurodevelopment and adult brain homoeostasis. Dysregulation in these processes is implicated in neurological disorders, highlighting the need to elucidate how NSCs proliferate and differentiate to clarify the mechanisms of neurogenesis and uncover potential therapeutic targets. MicroRNAs (miRNAs) are small, post-transcriptional regulators of gene expression involved in many aspects of nervous system development and function.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
September 2025
School of Medicine, Chongqing University, Chongqing 400044, China.
Engineering functional exosomes represents a cutting-edge approach in biomedicine, holding the promise to transform targeted therapy. However, challenges such as achieving consistent modification and scalability have limited their wider adoption. Herein, we introduce a universal and effective strategy for engineering multifunctional exosomes through cell fusion.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
September 2025
Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba 305-8577, Japan.
All organisms are exposed to various stressors, which can sometimes lead to organismal death, depending on their intensity. While stress-induced organismal death has been observed in many species, the underlying mechanisms remain unclear. In this study, we investigated the molecular mechanisms of stress-induced organismal death in the fruit fly .
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