Pyruvate kinase M2 isoform deletion in cone photoreceptors results in age-related cone degeneration

A Rajala, Y Wang, K Soni, RVS Rajala - Cell death & disease, 2018 - nature.com
The tumor form of pyruvate kinase M2 has been suggested to promote cellular anabolism by
redirecting the metabolism to cause accumulation of glycolytic intermediates and increasing …

Pyruvate kinase M2 regulates photoreceptor structure, function, and viability

A Rajala, Y Wang, RS Brush, K Tsantilas… - Cell death & …, 2018 - nature.com
Abstract Pyruvate kinase M2 (PKM2) is a glycolytic enzyme that is expressed in cancer cells.
Its role in tumor metabolism is not definitively established, but investigators have suggested …

Aerobic glycolysis in the retina: functional roles of pyruvate kinase isoforms

RVS Rajala - Frontiers in Cell and Developmental Biology, 2020 - frontiersin.org
One hundred years ago, Otto Heinrich Warburg observed that postmitotic retinal cells are the
highest oxygen-consuming cells in the body. He compared these cells to actively growing …

Up-regulation of PKM2 relates to retinal ganglion cell apoptosis after light-induced retinal damage in adult rats

X Yang, H Chen, M Zhu, R Zhu, B Qin, H Fang… - Cellular and molecular …, 2015 - Springer
Pyruvate kinase isozyme type M2 (PKM2), a key glycolytic enzyme, which is involved in ATP
generation and pyruvate production, participates in tumor metabolism, growth, and other …

Photoreceptor metabolic reprogramming provides survival advantage in acute stress while causing chronic degeneration

TJ Wubben, M Pawar, A Smith, K Toolan, H Hager… - Scientific reports, 2017 - nature.com
Photoreceptor death is the root cause of vision loss in many retinal disorders, and there is an
unmet need for neuroprotective modalities to improve photoreceptor survival. The …

The Warburg effect mediator pyruvate kinase M2 expression and regulation in the retina

RVS Rajala, A Rajala, C Kooker, Y Wang… - Scientific reports, 2016 - nature.com
The tumor form of pyruvate kinase M2 (PKM2) undergoes tyrosine phosphorylation and
gives rise to the Warburg effect. The Warburg effect defines a pro-oncogenic metabolism …

[HTML][HTML] M-type pyruvate kinase isoforms and lactate dehydrogenase A in the mammalian retina: metabolic implications

RJ Casson, JPM Wood, G Han… - … & visual science, 2016 - arvojournals.org
Purpose: Like cancer cells, photoreceptor cells produce lactate aerobically, requiring lactate
dehydrogenase A (LDH-A). Cancer cells also use glycolytic intermediates for biosynthesis …

Deletion of the p85α regulatory subunit of phosphoinositide 3-kinase in cone photoreceptor cells results in cone photoreceptor degeneration

I Ivanovic, RE Anderson, YZ Le… - … & visual science, 2011 - iovs.arvojournals.org
Purpose.: Downregulation of the retinal insulin/mTOR pathway in mouse models of retinitis
pigmentosa is linked to cone cell death, which can be delayed by systemic administration of …

Small molecule activation of metabolic enzyme pyruvate kinase muscle isozyme 2, PKM2, circumvents photoreceptor apoptosis

TJ Wubben, M Pawar, E Weh, A Smith… - Scientific reports, 2020 - nature.com
Photoreceptor cell death is the ultimate cause of vision loss in many retinal disorders, and
there is an unmet need for neuroprotective modalities to improve photoreceptor survival …

Metabolic and non-metabolic roles of pyruvate kinase M2 isoform in diabetic retinopathy

A Rajala, K Soni, RVS Rajala - Scientific Reports, 2020 - nature.com
The main therapeutic goal for diabetic retinopathy (DR) is to prevent vision loss in patients
with diabetes mellitus. Identifying the visual complications at a preclinical juncture will offer …