PTEN in kidney diseases: a potential therapeutic target in preventing AKI-to-CKD transition

Fangfang Cao1, Yuanyuan Li2, Ting Peng1

  • 1Division of Nephrology, Mianyang Central Hospital, Mianyang, China.

Frontiers in Medicine
|August 21, 2024
PubMed

Insights

Phosphatase and tensin homolog (PTEN) is crucial in kidney repair after acute kidney injury (AKI), influencing chronic kidney disease (CKD) progression. Targeting PTEN offers potential therapeutic strategies for kidney diseases.

Area of Science:

  • Nephrology
  • Molecular Biology
  • Pathology

Background:

  • Renal fibrosis drives chronic kidney disease (CKD) development, often stemming from acute kidney injury (AKI).
  • Phosphatase and tensin homolog (PTEN) regulates renal cell function and homeostasis, impacting processes like apoptosis and fibrosis.
  • The precise role of PTEN in AKI and subsequent maladaptive repair remains incompletely understood.

Purpose of the Study:

  • To review the multifaceted role of PTEN in renal pathology during AKI and CKD.
  • To elucidate the mechanisms underlying PTEN's influence on kidney injury and repair.
  • To summarize potential therapeutic strategies targeting PTEN for AKI and CKD.

Main Methods:

  • Literature review of studies investigating PTEN in renal injury models.
  • Analysis of PTEN's involvement in cellular processes like oxidative stress and autophagy.
  • Examination of PTEN's role in immune cell modulation and fibrosis.

Main Results:

  • PTEN significantly influences cell proliferation, apoptosis, and mitochondrial metabolism during the AKI-to-CKD transition.
  • PTEN's activity is implicated in oxidative stress, autophagy, and immune cell recruitment in kidney injury.
  • Modulation of PTEN impacts renal fibrosis progression.

Conclusions:

  • PTEN plays a critical, complex role in the pathogenesis of AKI and CKD.
  • Understanding PTEN's mechanisms offers insights into kidney disease progression.
  • Targeting PTEN presents a promising avenue for developing novel therapies for kidney diseases.

Related Concept Videos

Antihypertensive Drugs: Direct Renin Inhibitors01:25

Antihypertensive Drugs: Direct Renin Inhibitors

The renin-angiotensin-aldosterone system (RAAS) is an intricate physiological pathway involving numerous enzymes and hormones, including renin, angiotensin-converting enzyme (ACE), angiotensin I and II, and aldosterone. Imbalances within this system increase the production of angiotensin II and aldosterone. Increased angiotensin II levels promote vasoconstriction and blood pressure elevation. Concurrently, higher aldosterone levels stimulate sodium and water reabsorption in the kidneys,...
513
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System01:26

Heart Failure Drugs: Inhibitors of Renin-Angiotensin System

The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
405
Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors01:30

Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors

Angiotensin-converting enzyme (ACE), a vital component of the renin-angiotensin-aldosterone system, is abundant in lung endothelial cells. ACE converts the inactive decapeptide, angiotensin I, into the active octapeptide, angiotensin II. This potent vasoconstrictor narrows blood vessels, increasing resistance to blood flow and elevating blood pressure. Angiotensin II also stimulates aldosterone production, encouraging kidney cells to reabsorb more sodium and water from urine, thereby increasing...
541
Transducer Mechanism: Enzyme-Linked Receptors01:27

Transducer Mechanism: Enzyme-Linked Receptors

Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
Major types that are helpful drug targets include:
2.4K
Renal Drug Excretion: Tubular Secretion01:28

Renal Drug Excretion: Tubular Secretion

Active tubular secretion is a robust, energy-demanding process that utilizes carrier systems to transport drugs into renal tubules. The active renal secretion systems include the organic anion transporter (OAT) for weak acids and the organic cation transporter (OCT) for weak bases. Structurally similar drugs can compete for the same transporter, potentially leading to drug accumulation and toxicity. However, this principle can be exploited therapeutically. One example is probenecid (Probalan),...
154
Treatment for Pulmonary Arterial Hypertension: Receptor Tyrosine Kinase Inhibitors and Calcium Channel Blockers01:26

Treatment for Pulmonary Arterial Hypertension: Receptor Tyrosine Kinase Inhibitors and Calcium Channel Blockers

Receptor tyrosine kinase inhibitors (TKIs) and calcium channel blockers (CCBs) are two critical categories of drugs employed in the treatment of pulmonary artery hypertension (PAH). PAH is a disease that causes high blood pressure in the pulmonary arteries, resulting in chest pain, fatigue, and shortness of breath.
TKIs, such as imatinib (Gleevec), are particularly effective in tackling the growth and mitogenic factors that become upregulated in PAH patients. These factors contribute to the...
149