Lens aquaporins function as peroxiporins to facilitate membrane transport of hydrogen peroxide

K Varadaraj, SS Kumari - Biochemical and biophysical research …, 2020 - Elsevier
High levels of reactive oxygen species such as hydrogen peroxide (H 2 O 2) cause oxidative
stress in the lens and lead to cataractogenesis. The present investigation was undertaken to …

Aquaporin 5 knockout mouse lens develops hyperglycemic cataract

SS Kumari, K Varadaraj - Biochemical and biophysical research …, 2013 - Elsevier
The scope of this investigation was to understand the role of aquaporin 5 (AQP5) for
maintaining lens transparency and homeostasis. Studies were conducted using lenses of …

[HTML][HTML] The role of aquaporins in ocular lens homeostasis

KL Schey, RS Petrova, RB Gletten… - International journal of …, 2017 - mdpi.com
Aquaporins (AQPs), by playing essential roles in the maintenance of ocular lens
homeostasis, contribute to the establishment and maintenance of the overall optical …

[HTML][HTML] Lens aquaporins in health and disease: Location is everything!

KL Schey, RB Gletten, CVT O'Neale, Z Wang… - Frontiers in …, 2022 - frontiersin.org
Cataract and presbyopia are the leading cause of vision loss and impaired vision,
respectively, worldwide. Changes in lens biochemistry and physiology with age are …

Verification and spatial localization of aquaporin-5 in the ocular lens

AC Grey, KL Walker, RS Petrova, J Han… - Experimental eye …, 2013 - Elsevier
Until recently, the lens was thought to express only two aquaporin (AQP) water channels,
AQP1 and AQP0. In this study we confirm lenticular AQP5 protein expression by Western …

Intact AQP0 performs cell-to-cell adhesion

SS Kumari, K Varadaraj - Biochemical and biophysical research …, 2009 - Elsevier
Aquaporins (AQPs) constitute a major conduit for movement of water across plasma
membranes. AQP0 is expressed in the fiber cells and is critical for lens transparency and …

[HTML][HTML] Accelerated cataract formation and reduced lens epithelial water permeability in aquaporin-1-deficient mice

J Ruiz-Ederra, AS Verkman - Investigative ophthalmology & …, 2006 - tvst.arvojournals.org
purpose. To investigate the involvement of aquaporin (AQP)-1 in lens epithelial cell water
permeability and maintenance of lens transparency in experimental models of cataract …

[HTML][HTML] Increased aquaporin 1 and 5 membrane expression in the lens epithelium of cataract patients

O Barandika, M Ezquerra-Inchausti… - … et Biophysica Acta (BBA …, 2016 - Elsevier
In this work we have analyzed the expression levels of the main aquaporins (AQPs)
expressed in human lens epithelial cells (HLECs) using 112 samples from patients treated …

Functional characterization of a human aquaporin 0 mutation that leads to a congenital dominant lens cataract

K Varadaraj, SS Kumari, R Patil, MB Wax… - Experimental eye …, 2008 - Elsevier
The aquaporin (AQP) transmembrane proteins facilitate the movement of water across the
plasma membrane. In the lens, AQP0 is expressed in fiber cells and AQP1 in the epithelium …

Aquaporin 0 plays a pivotal role in refractive index gradient development in mammalian eye lens to prevent spherical aberration

SS Kumari, K Varadaraj - Biochemical and biophysical research …, 2014 - Elsevier
Abstract Aquaporin 0 (AQP0) is a transmembrane channel that constitutes∼ 45% of the total
membrane protein of the fiber cells in mammalian lens. It is critical for lens transparency and …