Results 151 to 160 of about 31,479 (277)

Decreased PTGES2 Farnesylation in Granulosa Cells Compromises PGE2‐Dependent Cumulus Expansion and Oocyte Maturation During Ovarian Aging

open access: yesAging Cell, Volume 25, Issue 2, February 2026.
A schematic showing decreased PTGES2 farnesylation in granulosa cells compromises PGE2‐dependent cumulus expansion and oocyte maturation during ovarian aging. In young ovaries, PTGES2 farnesylation of GCs regulates the process of cumulus expansion and oocyte maturation by facilitating PGE2 production.
Sainan Zhang   +14 more
wiley   +1 more source

The multifaceted functions of SPC25 in cancer: from molecular pathways to targeted therapy

open access: yesFrontiers in Medicine
Spindle Pole Body Component 25 (SPC25), a critical component of the NDC80 kinetochore complex, plays an essential role in maintaining chromosomal stability during mitosis.
Yigang Jin   +8 more
doaj   +1 more source

hnRNPU Safeguards Oocyte Development and Female Fertility via Regulation of Alternative Splicing

open access: yesThe FASEB Journal, Volume 40, Issue 2, 31 January 2026.
Heterogeneous nuclear ribonucleoprotein U (hnRNPU) is essential for oocyte development and female fertility. Oocyte‐specific deletion of Hnrnpu leads to follicular arrest, impaired meiotic maturation, mitochondrial dysfunction, and infertility.
Jinmei Li   +8 more
wiley   +1 more source

Cellular Hallmarks From Volume Electron Microscopy Reveal Developmental Progression of Plasmodium Ookinetes

open access: yesAdvanced Science, Volume 13, Issue 4, 19 January 2026.
This article presents a detailed ultrastructural cell atlas of Plasmodium ookinete development using advanced volume electron microscopy (v) techniques. It defines seven distinct developmental stages, revealing complex organelle interactions and offering new insights into parasite differentiation.
Nedal Darif   +12 more
wiley   +1 more source

Protein Kinase C Regulates Meiosis in Mammalian Oocytes

open access: yesBioEssays, Volume 48, Issue 1, January 2026.
Protein kinase C (PKC) participates in the regulation of mammalian oocyte meiosis. PKC is involved in meiosis resumption in prophase I and in the stabilization of meiosis I and meiosis II spindles. PKC stimulates the maturation‐promoting factor during fertilization and stabilizes the mitotic spindle during early embryo development. ABSTRACT The protein
Jaroslav Kalous   +2 more
wiley   +1 more source

Dissociation of the nuclear basket triggers chromosome loss in aging yeast

open access: yeseLife
In many organisms, aging is a clear risk factor for chromosome missegregation, the main source of aneuploidy. Here, we report that old yeast cells lose chromosomes by partitioning them asymmetrically to their daughter cells together with the pre-existing
Mihailo Mirkovic   +6 more
doaj   +1 more source

Nud1p, the yeast homolog of Centriolin, regulates spindle pole body inheritance in meiosis [PDF]

open access: bronze, 2006
Oren Gordon   +6 more
openalex   +1 more source

The NLS3 Motif in TPX2 Regulates Spindle Architecture in Xenopus Egg Extracts

open access: yesCytoskeleton, Volume 83, Issue 1, Page 29-39, January 2026.
ABSTRACT A bipolar spindle composed of microtubules and many associated proteins functions to segregate chromosomes during cell division in all eukaryotes, yet both spindle size and architecture vary dramatically across different species and cell types.
Guadalupe E. Pena   +4 more
wiley   +1 more source

Mechanical Coupling With the Nuclear Envelope Shapes the Schizosaccharomyces pombe Mitotic Spindle

open access: yesCytoskeleton, Volume 83, Issue 1, Page 40-52, January 2026.
ABSTRACT The fission yeast Schizosaccharomyces pombe divides via closed mitosis, meaning that spindle elongation and chromosome segregation transpire entirely within the closed nuclear envelope. Both the spindle and nuclear envelope must undergo shape changes and exert varying forces on each other during this process.
Marcus A. Begley   +8 more
wiley   +1 more source

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