Hif-1 Alpha Stabilization
Hif-1 Alpha Stabilization - Related Videos
11:22
Cardiac Muscle-cell Based Actuator and Self-stabilizing Biorobot - PART 1
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Cited by 3 •
2017
In this two-part study, a biological actuator was developed using highly flexible polydimethylsiloxane (PDMS) cantilevers and living muscle cells (cardiomyocytes), and characterized. The biological actuator was incorporated with a base made of modified PDMS materials to build a self-stabilizing, swimming biorobot.
08:32
Directional Solidification and Phase Stabilization
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2023
Source: Sina Shahbazmohamadi and Peiman Shahbeigi-Roodposhti-Roodposhti, School of Engineering, University of Connecticut, Storrs, CT Directional solidification zone melting is a metallurgical process in which a narrow region of a crystal (usually in the form of bar) is melted. The furnace moves along the rod shape sample, meaning that the molten zone is moved along the crystal and the molten zone is moved from one end of the bar to the other. This mechanism is widely used in alloys, however...
04:17
Determining the Serum Stability of Human Adenosine Deaminase 1 Enzyme
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2024
In this article, we detail methods to characterize an enzyme's ability to retain function when incubated at 37 °C in human serum, a pharmacological property referred to as its serum stability. This ability may be a key factor in predicting an enzyme's pharmacokinetic profile and its suitability for therapeutic use.
03:25
Immunostaining of Neurons Treated with Alpha-Synuclein Aggregates
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2025
This video demonstrates the immunostaining of neurons treated with alpha-synuclein (αS) aggregates. The neurons are first treated with αS aggregates. They are then fixed, permeabilized, and treated with a blocking solution. Primary antibodies are added, followed by a fluorescently labeled secondary antibodies and a nuclear stain. The sample is then mounted and observed under a microscope.
03:18
Nuclear Stability
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2020
Protons and neutrons, collectively called nucleons, are packed together tightly in a nucleus. With a radius of about 10−15 meters, a nucleus is quite small compared to the radius of the entire atom, which is about 10−10 meters. Nuclei are extremely dense compared to bulk matter, averaging 1.8 × 1014 grams per cubic centimeter. If the earth’s density were equal to the average nuclear density, the earth’s radius would be only about 200 meters. To hold positively charged protons together in the...
FAQs
Under normal oxygen conditions, prolyl hydroxylases modify HIF-1α, creating the signal recognized by von Hippel-Lindau protein. This protein directs HIF-1α toward ubiquitination, a tagging process that leads to proteasomal degradation. When oxygen-dependent hydroxylation is suppressed, this clearance pathway becomes less effective, allowing the regulatory protein to accumulate rather than be continuously removed.
Stabilization increases the amount of HIF-1α available to dimerize with HIF-1β and regulate hypoxia-response elements. This transcriptional control coordinates several adaptation programs at once, including angiogenesis, glycolytic metabolism, erythropoiesis, and cell survival. The pathway therefore links oxygen sensing to changes in blood supply, energy use, oxygen delivery, and persistence of stressed cells.
The response acts as a molecular connection between reduced oxygen availability and altered gene expression. Rather than treating hypoxia as an isolated metabolic problem, cells engage coordinated programs that can improve oxygen access, support energy production, and promote survival. This mechanism is especially important in tissues experiencing ischemia, inflammation, or tumor-associated oxygen limitation.
A pathway-focused investigation can assess several linked stages: oxygen-dependent modification by prolyl hydroxylases, recognition by von Hippel-Lindau protein, proteasomal degradation, HIF-1α accumulation, dimerization with HIF-1β, and activation of hypoxia-response elements. Examining these stages helps distinguish impaired protein clearance from later changes in hypoxia-responsive gene expression.
Its medical relevance spans stroke, cardiovascular disease, cancer, and wound healing. The pathway also provides context for ischemia and inflammation, where oxygen availability and tissue stress can change cellular behavior. In these settings, studying stabilization may clarify how cells alter angiogenesis, metabolism, erythropoiesis, and survival in response to their microenvironment.
Research can approach the pathway in two opposing ways: enhancing hypoxic adaptation when stronger cellular responses may be useful, or inhibiting the response when hypoxia-driven biology contributes to disease. This distinction is particularly relevant across stroke, cardiovascular disease, wound healing, and cancer research, where the desired effect depends on whether adaptation is protective or harmful.