Completed Lungs & Breathing Cells, Biochemistry & Physiology

The physiology of hypoxic response

In plain English

AI plain-English summary

When oxygen levels drop—whether at high altitude, during a heart attack, or inside a growing tumour—the body’s cells must scramble to adapt or die. This seven-year programme investigates the fundamental biological machinery that senses low oxygen and triggers survival responses, from ramping up red blood cell production to rewiring metabolism. The work splits into three strands: how healthy tissues cope with oxygen shortage, how the same pathways influence inflammation and infection, and how cancers hijack these systems to fuel tumour growth and spread, particularly in breast cancer. This is fundamental science—there is no immediate clinical tool or drug on the table. But the oxygen-sensing pathway has already produced one blockbuster: drugs that stabilise the key protein HIF are now used to treat anaemia in kidney disease. A deeper understanding of how hypoxia drives inflammation and metastasis could eventually point toward therapies that block cancer’s ability to thrive in low-oxygen environments, or that tweak immune responses during infection. For now, the payoff is a clearer map of a stress response that touches nearly every disease involving poor blood flow or rapid cell growth.

View original technical description
This research plan delineates the efforts proposed for support from the Wellcome Trust over a seven year period, and addresses three specific aims. These research aims stem from, and are continuous with, the efforts of my laboratory over the last fifteen years to better understand how animals respond to the physiological stress of hypoxia. The three aims separate into the three main interests we have established while studying this problem. The aims concern: Aim 1: The physiological resp onse to hypoxia This aim is chiefly concerned with response to environmental changes in oxygen, and erythropoietic and metabolic adaptation. Aim 2: Hypoxic response and inflammation This aim is primarily focussed on the role of hypoxic response in infection and innate immunity. Aim 3: Hypoxic response in cancer This aim is primarily focussed on breast cancer and metastasis models as they are influenced by hypoxic response.

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Researchers

Randall Johnson (EPMC Awardee)

Related Research

Grants with similar aims, by meaning.

Investigation of the contribution of redox stress to the therapy resistance of cells experiencing cycling oxygen levels
Investigating regulatory mechanisms of the AP1 transcription factor in hypoxic (low oxygen) cell adaptation
Roles of hypothermia in response to environmental hypoxia: Behavioural and thermal modulation of the genetic and proteomic responses to low oxygen
Rediscovering hypoxia though RNA regulation
Oxygen and immune response

Original classification

Principal Research Fellowship (New)

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