The physicochemical properties of preserved and preservative-free latanoprost eye drops and their impact on human conjunctival goblet cells
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The physicochemical properties of preserved and preservative-free latanoprost eye drops and their impact on human conjunctival goblet cells. / Müllertz, Olivia Amanda Oest; Nagstrup, Anne Hedengran; Mouhammad, Zaynab Ahmad; Freiberg, Josefine Clement; Nagymihály, Richárd; Jacobsen, Jette; Larsen, Susan Weng; Bair, Jeffrey A; Utheim, Tor Paaske; Dartt, Darlene A.; Heegaard, Steffen; Petrovski, Goran; Kolko, Miriam.
In: Acta Ophthalmologica, Vol. 100, No. S267, 2022.Research output: Contribution to journal › Conference abstract in journal › Research › peer-review
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T1 - The physicochemical properties of preserved and preservative-free latanoprost eye drops and their impact on human conjunctival goblet cells
AU - Müllertz, Olivia Amanda Oest
AU - Nagstrup, Anne Hedengran
AU - Mouhammad, Zaynab Ahmad
AU - Freiberg, Josefine Clement
AU - Nagymihály, Richárd
AU - Jacobsen, Jette
AU - Larsen, Susan Weng
AU - Bair, Jeffrey A
AU - Utheim, Tor Paaske
AU - Dartt, Darlene A.
AU - Heegaard, Steffen
AU - Petrovski, Goran
AU - Kolko, Miriam
N1 - Special Issue: Abstracts from the 2021 European Association for Vision and Eye Research Festival
PY - 2022
Y1 - 2022
N2 - PurposeTo investigate the impact on human conjunctival goblet cell (GC) survival and mucin release for benzalkonium chloride (BAK) preserved and preservative-free (PF) 0.005% (w/v) latanoprost (LT) eye drops, and to compare the eye drops’ physicochemical properties.MethodsGC cultures were established from human conjunctival donor tissue. The impact of eye drops on GC survival was assessed using lactate dehydrogenase (LDH) and tetrazolium dye (MTT) colorimetric assays. Mucin release was evaluated through mucin-specific immunostaining. pH-value, osmolality, drop mass and surface tension for all LT eye drops were measured.ResultsAfter application with PF-LT for 30 minutes (min), the GC survival was maintained (p = 0.7043), while all BAK-LT eye drops reduced survival to approximately 70% (p<0.0001). Following application with PF-LT for 30 min, mucin was found around the GC nucleus, as seen in the vehicle control, indicating no secretion. In contrast, BAK-LT caused diffuse staining of mucin, similar to the secretagogue histamine, indicating stimulation of secretion. The pH of the BAK-LT and PF-LT eye drops were 6.0-6.9 and 6.8, respectively. The osmolality was 258-288 mOsm/kg for the BAK-LT eye drops and 276 for PF-LT eye drop. The mean drop mass was 26-31 mg for the BAK-LT eye drops and 30mg for PF-LT. The surface tension was lower for all BAK-LT eye drops (31.1-32.1 mN/m) compared to PF-LT (42 mN/m).ConclusionsPF-LT compared to various branded and generic LT preparations containing BAK should be used to improve goblet cell tolerability and ocular surface health.
AB - PurposeTo investigate the impact on human conjunctival goblet cell (GC) survival and mucin release for benzalkonium chloride (BAK) preserved and preservative-free (PF) 0.005% (w/v) latanoprost (LT) eye drops, and to compare the eye drops’ physicochemical properties.MethodsGC cultures were established from human conjunctival donor tissue. The impact of eye drops on GC survival was assessed using lactate dehydrogenase (LDH) and tetrazolium dye (MTT) colorimetric assays. Mucin release was evaluated through mucin-specific immunostaining. pH-value, osmolality, drop mass and surface tension for all LT eye drops were measured.ResultsAfter application with PF-LT for 30 minutes (min), the GC survival was maintained (p = 0.7043), while all BAK-LT eye drops reduced survival to approximately 70% (p<0.0001). Following application with PF-LT for 30 min, mucin was found around the GC nucleus, as seen in the vehicle control, indicating no secretion. In contrast, BAK-LT caused diffuse staining of mucin, similar to the secretagogue histamine, indicating stimulation of secretion. The pH of the BAK-LT and PF-LT eye drops were 6.0-6.9 and 6.8, respectively. The osmolality was 258-288 mOsm/kg for the BAK-LT eye drops and 276 for PF-LT eye drop. The mean drop mass was 26-31 mg for the BAK-LT eye drops and 30mg for PF-LT. The surface tension was lower for all BAK-LT eye drops (31.1-32.1 mN/m) compared to PF-LT (42 mN/m).ConclusionsPF-LT compared to various branded and generic LT preparations containing BAK should be used to improve goblet cell tolerability and ocular surface health.
U2 - 10.1111/j.1755-3768.2022.071
DO - 10.1111/j.1755-3768.2022.071
M3 - Conference abstract in journal
VL - 100
JO - Acta Ophthalmologica
JF - Acta Ophthalmologica
SN - 1755-375X
IS - S267
T2 - European Association for Vision and Eye Research Festival (EVER) 2021
Y2 - 2 October 2021 through 2 October 2021
ER -
ID: 297348901