Related Experiment Video

Updated: Apr 10, 2026

Induction of Ocular Surface Inflammation and Collection of Involved Tissues
06:38

Induction of Ocular Surface Inflammation and Collection of Involved Tissues

Published on: August 4, 2022

3.0K

Effects of Four Formulations of Prostaglandin Analogs on Eye Surface Cells. A Comparative Study

Fernando Pérez-Roca1, Esther Rodrigo-Morales2, Ingrid Garzón3

  • 1Hospital General Básico de Baza, E18800, Granada, Spain; PhD Program in Biomedicine, University of Granada, 18012, Granada, Spain.

Plos One
|June 13, 2015
PubMed

Insights

This study assessed the cytotoxicity of four prostaglandin analogs (PGAs) used for glaucoma treatment. Tafluprost demonstrated the least ocular surface toxicity in vitro, suggesting a need for less cytotoxic glaucoma medications.

Area of Science:

  • Ophthalmology
  • Cell Biology
  • Pharmacology

Background:

  • Glaucoma treatment often involves prostaglandin analogs (PGAs).
  • Understanding the in vitro cytotoxicity of PGAs is crucial for ocular surface health.
  • Previous studies have indicated potential cellular damage from PGA use.

Purpose of the Study:

  • To evaluate and compare the cytotoxic effects of four common prostaglandin analogs (bimatoprost, tafluprost, travoprost, latanoprost) on human conjunctival stromal cells.
  • To determine the concentration- and time-dependent cytotoxicity of these PGAs.
  • To identify PGAs with a more favorable safety profile for ocular surface tissues.

Main Methods:

  • Primary cultures of human conjunctival stromal cells were established.
  • Cells were exposed to varying concentrations and durations of four commercial PGAs: bimatoprost, tafluprost, travoprost, and latanoprost.
  • Cell viability was assessed using WST-1, MTT, and calcein/AM-ethidium homodimer-1 assays.

Main Results:

  • All tested PGAs exhibited dose-dependent cytotoxicity, with increased damage at higher concentrations and longer exposure times.
  • Tafluprost showed a trend towards lower toxicity compared to bimatoprost, travoprost, and latanoprost across all tested periods.
  • Latanoprost was identified as the most cytotoxic PGA, while tafluprost was the least cytotoxic, preserving ocular surface cells in vitro.

Conclusions:

  • Novel prostaglandin analogs should be developed with reduced cytotoxic potential while maintaining efficacy for glaucoma management.
  • Tafluprost appears to be a safer option for the ocular surface compared to other PGAs studied.
  • The preservative-free formulation of tafluprost used may align with the clinical trend of preservative elimination in eye drops.

More Related Videos

Author Spotlight: Exploring Corneal Innate Immunity and Delayed Wound Healing in Diabetic Patients03:57

Author Spotlight: Exploring Corneal Innate Immunity and Delayed Wound Healing in Diabetic Patients

Published on: January 10, 2025

26.0K
Platelet-Rich Plasma Lysate for Treatment of Eye Surface Diseases05:57

Platelet-Rich Plasma Lysate for Treatment of Eye Surface Diseases

Published on: August 2, 2022

5.3K

Related Concept Videos

Drugs for Peptic Ulcer Disease: Prostaglandin Analogs as Mucosal Protective Agents01:20

Drugs for Peptic Ulcer Disease: Prostaglandin Analogs as Mucosal Protective Agents

The gastric mucosa produces prostaglandins E2 (PGE2) and prostacyclin (PGI2), crucial in maintaining gastric health. They exert cytoprotective effects, including increasing bicarbonate secretion, releasing protective mucin, reducing gastric acid output, and preventing harmful vasoconstriction. These effects are mediated through various receptors, such as EP1, EP2, EP3, and EP4.
Non-steroidal anti-inflammatory drugs (NSAIDs) can induce peptic ulcers by inhibiting cyclooxygenase, decreasing...
1.6K
Treatment for Pulmonary Arterial Hypertension: Prostacyclin Receptor Agonists01:23

Treatment for Pulmonary Arterial Hypertension: Prostacyclin Receptor Agonists

Prostacyclin receptor agonists are a class of therapeutic agents integral to managing pulmonary arterial hypertension (PAH). These drugs operate by mimicking the action of prostaglandin I2, or PGI2, a naturally occurring compound in the body.
These agonists bind to the IPR receptor situated on the plasma membrane of the pulmonary artery smooth muscle cells. This binding triggers a cascade of reactions known as the GS-AC-cAMP-PKA pathway. This pathway results in the relaxation of smooth muscle...
615
Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
1.1K
Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors01:20

Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors

Antiplatelet drugs emerge as frontline defenders against the insidious threat of thromboembolic diseases, where abnormal clots obstruct vital blood vessels. These drugs stand as bulwarks, inhibiting platelet aggregation and clot formation, thereby mitigating the risk of life-threatening conditions like myocardial infarction, coronary artery disease, and thrombotic strokes.
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
1.5K
Ophthalmic Drug Delivery Systems01:23

Ophthalmic Drug Delivery Systems

Ophthalmic drug delivery faces major limitations due to poor absorption across the corneal membrane. This process is primarily driven by diffusion and is influenced by two main factors: the physicochemical properties of the drug and tear drainage. Most ophthalmic drugs, such as pilocarpine, epinephrine, atropine, and local anesthetics, are weak bases. They are typically formulated at an acidic pH to enhance chemical stability. However, this leads to high ionization, reducing their ability to...
244
Direct-Acting Cholinergic Agonists: Pharmacological Actions00:59

Direct-Acting Cholinergic Agonists: Pharmacological Actions

Direct-acting cholinergic agonists exert their pharmacological actions by mimicking the effects of acetylcholine on postsynaptic muscarinic receptors to generate parasympathetic responses. These agents elicit a range of physiological responses, including cardiovascular effects. For example, activation of muscarinic receptors induces bradycardia, decreased cardiac output, reduced peripheral resistance, and consequent hypotension. In the eye, stimulation of M3 receptors leads to smooth muscle...
2.6K