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Related Concept Videos

Zygotic Development And Stem Cell Formation01:10

Zygotic Development And Stem Cell Formation

The development of all multicellular organisms starts with the fusion of haploid cells called sperm and egg to form a diploid zygote. A zygote is a totipotent cell that can develop into a complete organism. The zygote undergoes cell division or cleavage to form an 8-cell mass. Until this stage, the cells are spherical, loosely attached, and remain totipotent. Totipotent cells are capable of developing both the embryonic and the extraembryonic tissues. However, as they continue to divide, they...
M-Cdk Drives Transition Into Mitosis02:15

M-Cdk Drives Transition Into Mitosis

Checkpoints throughout the cell cycle serve as safeguards and gatekeepers, allowing the cell cycle to progress in favorable conditions and slow or halt it in problematic ones. This regulation is known as the cell cycle control system.
Cyclin-dependent kinases, or Cdks, work in concert with cyclins to control cell cycle transitions. M-Cdk, a complex of Cdk1 bound to M cyclin, is a well-known example of this coordinated control that drives the transition from the G2 to the M phase.
M cyclin...
M-Cdk Drives Transition Into Mitosis02:15

M-Cdk Drives Transition Into Mitosis

Checkpoints throughout the cell cycle serve as safeguards and gatekeepers, allowing the cell cycle to progress in favorable conditions and slow or halt it in problematic ones. This regulation is known as the cell cycle control system.
Cyclin-dependent kinases, or Cdks, work in concert with cyclins to control cell cycle transitions. M-Cdk, a complex of Cdk1 bound to M cyclin, is a well-known example of this coordinated control that drives the transition from the G2 to the M phase.
M cyclin...
Determination01:51

Determination

During embryogenesis, cells become progressively committed to different fates through a two-step process: specification followed by determination. Specification is demonstrated by removing a segment of an early embryo, “neutrally” culturing the tissue in vitro—for example, in a petri dish with simple medium—and then observing the derivatives. If the cultured region gives rise to cell types that it would normally generate in the embryo, this means that it is specified. In contrast, determination...
Positive Regulator Molecules02:39

Positive Regulator Molecules

Mitotic cell division results in daughter cells that exactly resemble the parent cell. However, errors in the DNA replication or distribution of genetic material may lead to genetic mutations that may be passed down to every new cell formed from the resulting abnormal cell. Propagation of such mutant cells is restricted through checkpoint mechanisms present at different stages of the cell cycle. These checkpoints involve regulator molecules that either promote or demote cell cycle events.
Cadherins in Tissue Organization01:19

Cadherins in Tissue Organization

The cadherins are a superfamily of cell adhesion molecules comprising over 180 variants, with specific tissues expressing a particular combination of cadherin types. Cadherins generally exhibit homophilic binding; i.e., cadherins on one cell bind to cadherins of the same or closely related type on another cell. Thus, cells of the same type have a specific affinity to bind to each other and sort themselves into clusters to form tissues.
Cell Sorting During Development
Cell sorting plays an...

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Double Whole Mount in situ Hybridization of Early Chick Embryos
15:42

Double Whole Mount in situ Hybridization of Early Chick Embryos

Published on: October 27, 2008

CK2α is essential for embryonic morphogenesis.

Isabel Dominguez1, Irene R Degano, Kathleen Chea

  • 1Department of Medicine, Boston University School of Medicine, Boston, MA 02118, USA. isdoming@bu.edu

Molecular and Cellular Biochemistry
|July 16, 2011
PubMed
Summary
This summary is machine-generated.

Protein kinase CK2 (CK2) is vital for embryonic development. CK2α deficiency in mice causes severe developmental defects, impacting organ and tissue formation during mid-gestation.

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09:32

Light-mediated Reversible Modulation of the Mitogen-activated Protein Kinase Pathway during Cell Differentiation and Xenopus Embryonic Development

Published on: June 15, 2017

Area of Science:

  • Developmental Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Protein kinase CK2 (CK2) is a highly conserved enzyme regulating critical cellular functions.
  • CK2 is implicated in diverse biological processes including development, circadian rhythms, inflammation, and cancer.
  • Understanding CK2's role in early development is crucial for deciphering morphogenetic mechanisms.

Purpose of the Study:

  • To characterize the cellular, signaling, and molecular mechanisms regulated by CK2 during early embryonic development.
  • To investigate the impact of CK2α deficiency on embryonic morphogenesis using animal models.
  • To identify specific cellular processes affected in CK2α-mutant embryos.

Main Methods:

  • Utilizing gene-deficient mice (CK2α-/-) to study CK2 function.
  • Phenotypic analysis of CK2α-deficient embryos during mid-gestation.
  • Initial analysis of cellular processes affected in CK2α mutants.

Main Results:

  • CK2α deficiency leads to significant defects in mid-gestational development.
  • Observed malformations include defects in heart, brain, pharyngeal arch, tail bud, limb bud, and somite formation.
  • These defects highlight CK2α's critical role in coordinating essential cellular processes for morphogenesis.

Conclusions:

  • CK2α is essential for normal embryonic development and morphogenesis.
  • CK2α deficiency disrupts fundamental cellular processes required for proper tissue and organ formation.
  • Further investigation into CK2α's regulatory mechanisms is warranted to understand its role in developmental disorders.