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The primary cilium, made up of microtubules, acts as antennae on the cell surfaces for relaying external stimuli into the cells. These fine hair-like structures are present, generally one per cell. These are non-motile cilia in a 9+0 microtubules arrangement, where the central pair of microtubules are absent. The primary cilia arise from the basal body embedded in the cell membrane. Intraflagellar transport (IFT) carries requisite proteins from the cytoplasm to the cilium because the primary...
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Plants and other photosynthetic organisms comprise pigments capable of absorption of direct sunlight. These pigments are present in the reaction center - the main site of photochemical reactions as well as in the antenna complex. Under average light conditions, the rate at which reaction center pigments absorb light is far below the electron transport chain's capacity. As a result, the reaction center alone cannot provide enough energy to drive photosynthesis. The photosynthetic efficiency can...
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Microtubules are thick hollow cylindrical proteins that help form the cytoskeleton. Microtubules have varied roles in the cell. These filaments help form cellular appendages like cilia and flagella, which are responsible for locomotion. The cilia arise from basal bodies, separated from the main body by a membrane-like structure forming the transition zone. This zone is the gate for the entry of lipids and proteins, creating a unique composition of lipids and proteins in the ciliary membrane and...
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Artificial Intelligence Approaches to Assessing Primary Cilia
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The Cilium: Cellular Antenna and Central Processing Unit.

Jarema J Malicki1, Colin A Johnson2

  • 1Bateson Centre and Department of Biomedical Science, University of Sheffield, Western Bank Sheffield, S10 2TN, UK.

Trends in Cell Biology
|September 17, 2016
PubMed
Summary
This summary is machine-generated.

Cilia formation and maintenance involve complex regulation from cell cycle and signaling pathways. Understanding these inputs is key to deciphering cilia function in human biology.

Keywords:
actin cytoskeletonautophagycell cycleciliogenesismTOR pathwayprimary cilium

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Area of Science:

  • Cell Biology
  • Molecular Biology

Background:

  • Cilia are crucial cellular structures involved in diverse biological processes.
  • Recent research has uncovered intricate regulatory mechanisms governing cilium formation and function.

Purpose of the Study:

  • To explore the regulatory mechanisms of cilium formation (ciliogenesis).
  • To understand how diverse cellular inputs influence cilia.
  • To elucidate the role of cilia in integrating signals for specific outputs.

Main Methods:

  • Review of recent advances in cilia research.
  • Analysis of regulatory inputs including cell cycle, cytoskeleton, and proteostasis.
  • Investigation of cilia-mediated signaling pathways.

Main Results:

  • Ciliogenesis and maintenance are controlled by parallel, reciprocal influences (antagonistic or synergistic).
  • Cilia integrate multiple signals, functioning akin to logic gates.
  • Specific input combinations exert hierarchical control, particularly related to the cell cycle.

Conclusions:

  • An integrated understanding of regulatory inputs is essential for comprehending ciliogenesis.
  • Cilia's role as signal integrators has broad implications for human biology.
  • Further research into cilia regulation will illuminate their diverse functions.