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Related Concept Videos

Electron Transport Chain: Complex I and II01:46

Electron Transport Chain: Complex I and II

The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
Pharmacogenetics of Drug Metabolism: Overview01:27

Pharmacogenetics of Drug Metabolism: Overview

Genetic polymorphism in drug metabolism is crucial to the inter-individual variability observed in drug responses. Drug metabolism primarily involves the chemical modification of drugs and other xenobiotics to enhance their elimination by increasing their polarity. Two main classes of enzymes mediate this biotransformation process: Phase I enzymes, primarily cytochrome P450s, catalyze oxidation and reduction reactions, while other enzymes, such as esterases, mediate hydrolysis, and Phase II...
Mitochondrial Membranes01:45

Mitochondrial Membranes

A single mitochondrion is a bean-shaped organelle enclosed by a double-membrane system. The outer membrane of mitochondria is smooth and contains many porins - the integral membrane transporters. Porins enable free diffusion of ions and small uncharged molecules through the outer mitochondrial membrane but limit the transport of molecules larger than 5000 Daltons. Further, the outer mitochondrial membrane forms a unique structure called membrane contact sites with other subcellular organelles,...
Translocation of Proteins into the Mitochondria01:19

Translocation of Proteins into the Mitochondria

Mitochondrial precursors are translocated to the internal subcompartments via independent mechanisms involving distinct protein machineries called translocases.
Sorting of outer membrane proteins:
Mitochondrial outer membrane proteins are of two types: the transmembrane, beta-barrel porins, and the membrane-anchored, alpha-helical proteins. Beta-barrel porin precursors are translocated by the TOM complex and inserted into the outer mitochondrial membrane by the SAM complex. In contrast,...
Mitochondria01:37

Mitochondria

Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
Pharmacodynamics: Overview and Principles01:21

Pharmacodynamics: Overview and Principles

Pharmacodynamics is a scientific field that delves into drugs' intricate biochemical, cellular, and physiological effects on the human body. The study of pharmacodynamics helps us understand how drugs interact with the body and elicit various responses.
Most drugs' effects result from their interactions with drug receptors or targets within the body. These interactions trigger specific responses at the cellular or systemic level. Drug receptors can be found on the surfaces of cells or within...

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Related Experiment Video

Updated: May 23, 2026

Exploring Mitochondrial Energy Metabolism of Single 3D Microtissue Spheroids Using Extracellular Flux Analysis
08:15

Exploring Mitochondrial Energy Metabolism of Single 3D Microtissue Spheroids Using Extracellular Flux Analysis

Published on: February 3, 2022

Mitochondrial pharmacology.

Robin A J Smith1, Richard C Hartley, Helena M Cochemé

  • 1Department of Chemistry, University of Otago, Box 56, Dunedin, New Zealand.

Trends in Pharmacological Sciences
|April 24, 2012
PubMed
Summary
This summary is machine-generated.

Mitochondria play crucial roles beyond metabolism, influencing cell death, immunity, and more. Targeting mitochondrial dysfunction offers a promising therapeutic strategy for diverse human pathologies.

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Area of Science:

  • Mitochondrial biology
  • Cellular metabolism
  • Biomedical science

Background:

  • Mitochondria are increasingly recognized for roles beyond oxidative phosphorylation and metabolism.
  • These roles include involvement in cell death, neoplasia, differentiation, innate immunity, oxygen sensing, and calcium metabolism.
  • Mitochondrial dysfunction is linked to oxidative damage, calcium imbalance, impaired ATP synthesis, and permeability transition pore induction.

Purpose of the Study:

  • To outline the biological properties of mitochondria relevant to health and disease.
  • To describe pharmacological strategies for addressing mitochondrial dysfunction.

Main Methods:

  • Literature review and synthesis of current research on mitochondrial functions.
  • Analysis of the link between mitochondrial dysfunction and human pathologies.
  • Overview of emerging therapeutic approaches targeting mitochondria.

Main Results:

  • Mitochondria are central to multiple cellular processes critical for health.
  • Dysfunction in these processes contributes to various human diseases.
  • Pharmacological interventions targeting mitochondrial damage show therapeutic potential.

Conclusions:

  • Mitochondria are key determinants of health and disease.
  • Mitochondrial dysfunction is implicated in a wide range of pathologies.
  • Targeting mitochondria represents a promising therapeutic avenue for diverse conditions.