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Related Concept Videos

Cellular Adaptation I: Introduction and Atrophy01:23

Cellular Adaptation I: Introduction and Atrophy

Cells can adapt to environmental changes to maintain function and avoid injury, a process called cellular adaptation. Adapted cells exist in a reversible intermediate state with changes in size, number, phenotype, metabolism, or function. These responses help cells meet altered physiological or pathological demands; for example, enlargement of breast and uterine tissues during pregnancy. Early adaptations may enhance function, but persistent stress eventually causes tissue damage.Types of...
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How does a complex organism such as a human develop from a single cell? It all starts from a single fertilized egg which gives rise to a vast array of cell types, such as nerve cells, muscle cells, and epithelial cells that characterize the adult? Throughout development and adulthood, cellular differentiation leads cells to assume their final morphology and physiology. Differentiation is the process by which unspecialized cells become specialized to carry out distinct functions.
A zygote is a...
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Hypertrophy is the increase in the size of individual cells, resulting in the enlargement of a tissue or organ. Unlike hyperplasia, which involves an increase in cell number, hypertrophy is characterized by an increase in cell volume. This process often occurs in response to higher functional demand or hormonal stimulation, leading to the production of more structural proteins and organelles, thereby enhancing the cells' work capacity.There are two primary types of hypertrophy: physiological...
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Hyperplasia is an increase in the number of cells in a tissue or organ due to enhanced cell division. It is an adaptive, controlled response to stimuli such as injury, hormones, or stress, involving mitosis to produce genetically identical cells and support tissue repair and regeneration.Tissue CapacityCertain tissues, including the epidermis, intestinal epithelium, bone marrow, and fibroblasts, have a high potential for hyperplasia. Others, such as bone, cartilage, and smooth muscle, show...

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The Encapsulation of Cell-free Transcription and Translation Machinery in Vesicles for the Construction of Cellular Mimics
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Published on: October 21, 2013

Cellular imitations.

Michele Forlin1, Roberta Lentini, Sheref S Mansy

  • 1CIBIO, University of Trento, via delle Regole 101, 38123 Mattarello, Italy.

Current Opinion in Chemical Biology
|November 13, 2012
PubMed
Summary
This summary is machine-generated.

Researchers are building life-like systems from non-living components to understand cellular life. These bottom-up approaches aim to mimic the organization and behavior of living cells.

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Area of Science:

  • Synthetic biology
  • Origin of life research
  • Biophysics

Background:

  • Traditional synthetic biology focuses on modifying existing cells.
  • This approach often overlooks essential but undefined components of life.
  • Building life-like systems from non-living parts addresses these limitations.

Purpose of the Study:

  • To explore bottom-up strategies for creating artificial cellular systems.
  • To highlight recent advancements in mimicking cellular organization and behavior.
  • To investigate the challenges and successes in defining and quantifying life-like properties.

Main Methods:

  • Utilizing purely chemical and physical forces without biological molecules.
  • Assembling artificial cells from biological components like nucleic acids, proteins, and lipids.
  • Developing systems that exhibit life-like organization and behavior.

Main Results:

  • Progress in creating systems that mimic cellular functions from non-living matter.
  • Demonstration of bottom-up approaches to artificial cell construction.
  • Identification of challenges in quantifying the 'life-likeness' of synthetic systems.

Conclusions:

  • Bottom-up strategies offer novel ways to study the fundamental properties of life.
  • Mimicking cellular organization and behavior from non-living components is an active area of research.
  • Further research is needed to objectively evaluate and define artificial life-like systems.