VDP-139 [Funding] Luminova: mtON gene therapy in the aged eye
One-liner: Rejuvenating mitochondrial function by harnessing the power of light
Longevity Dealflow WG team
- Senior Reviewers: Project has been evaluated by 4 reviewers: 3 academia and 1 biotech
- Shepherd: Maria Marinova, Jason Mercurio
- Other squad members: Eleanor Davies, Cassy Le, Adrian Matysek
- Sourced by: Jason Mercurio
Project PI
Dr Shahaf Peleg
Simple Summary
Luminova Biotech holds exclusive rights to mtON technology, enabling mammalian cells to convert light energy into chemical energy, thus generating ATP independently of oxidative phosphorylation. This technology has improved lifespan and health in C. elegans and is effective in human and mouse cells. It offers promising applications, particularly in treating age-related human vision loss, representing a significant advancement in treating internal organs.
Problem
Aging is characterized by an increased prevalence of the cellular and molecular hallmarks of aging, which include mitochondrial dysfunction, accumulation of metabolic toxic byproducts, and systemic decline of the body vasculature. The hallmarks of aging are interconnected and a central challenge is to have a suitable and efficient treatment addressing several hallmarks at once.
Older individuals suffer from age-associated vision loss and an increased prevalence of metabolic diseases, such as diabetes, which together impair eye function (Fig 1.). Specifically, reduced oxygen transport, mitochondrial dysfunction, and accumulation of lipofuscin are involved in vision loss with aging and related maladies.
The aim for Luminova is to improve the aging phenotype with a novel approach using vision loss as an early-stage proxy. The Luminova team has developed a novel technology that can directly overcome these age-mediated dysfunctions in the eye.
Fig 1. Prevalence of late AMD according to age and gender in Caucasians from industrialised countries
Solution
Luminova addresses the interconnected hallmarks of aging, including mitochondrial dysfunction, the accumulation of metabolic waste, and systemic decline. Recognizing the challenge of finding a treatment that addresses multiple hallmarks simultaneously, they aim to offer a comprehensive solution. The company strategically uses eye aging as an early-stage proxy for their innovative approach.
The core of Luminovaâs solution is mtON technology, a novel and disruptive approach. mtON is an engineered, light-activated proton pump localized to metazoan mitochondria. This technology is designed to power mitochondrial function independently of metabolism and oxygen (Fig 2.).
Fig 2. Mitochondria-ON (mtON) increased âÏm in vivo. The mitochondrial inner membrane (IM) contains the electron transport chain (ETC), which pumps protons to generate mitochondrial membrane potential (âÏm). mtON is an engineered light-activated proton pump and, in response to light and ATR supplementation, pumps protons across the IM to generate âÏm
Berry, Brandon J et al. âOptogenetic rejuvenation of mitochondrial membrane potential extends C. elegans lifespan.â Nature aging vol. 3,2 (2023): 157-161. doi:10.1038/s43587-022-00340-7
The use of optogenetics to control mitochondrial membrane potential, previously demonstrated as a novel method to partially restore mitochondrial functions (Qiu et al., 2022), is a new approach for harnessing the energy of light to directly power mitochondria and sets Luminova apart in the field of aging research. This innovative approach opens a new subfield in aging research.
The company outlines a comprehensive pre-clinical trial plan in mice, focusing on the eye. This involves assessing the biodistribution of mtON, determining its functionality in isolated mitochondria, and evaluating the therapeutic benefits in the context of age-associated vision loss and diabetic retinopathy.
Opportunity
The projected longevity market is estimated to reach $270 billion by 2024, driven by a growing population experiencing vision loss. Currently, over 300 million people suffer from moderate to severe vision impairment, a number expected to increase by 50% over the next 25 years (Fig 3.). Addressing age-related vision loss presents a substantial market opportunity, and if successful, the technology could potentially be extended to address issues in other organs.
Fig 3. Bourne, Rupert R A et al. âMagnitude, temporal trends, and projections of the global prevalence of blindness and distance and near vision impairment: a systematic review and meta-analysis.â The Lancet. Global health vol. 5,9 (2017): e888-e897. doi:10.1016/S2214-109X(17)30293-0
The technology developed by Luminova Biotech, known as mitochondria-ON (mtON), addresses the critical issue of mitochondrial dysfunction, which is recognized as a central factor in the aging process. The technologyâs ability to optogenetically increase mitochondrial membrane potential during adulthood using a light-activated proton pump represents a groundbreaking approach with significant potential to impact aging projections (Fig 4.).
Fig 4. Model showing effects of mtON activation in vivo. The dotted arrow represents the molecular mechanisms to be investigated that link mitochondrial membrane potential (ÎÏm) to aged physiology.
Here are key reasons why this technology presents a great opportunity to change aging projections:
- The use of optogenetics to modulate mitochondrial membrane potential is a sophisticated and precise approach. Optogenetics involves using light to control cells that have been genetically modified to respond to light stimuli, providing a high level of control over cellular processes.
- Focusing on mitochondrial membrane potential as a target is strategic, given its central role in aging. The technology directly addresses the decline in mitochondrial membrane potential associated with aging.
- While the initial experiments were conducted in C. elegans, the ultimate goal is to translate the technology to humans. The fact that mitochondrial function is a conserved aspect across species increases the potential relevance of the findings to human aging.
- The technology not only extends lifespan but also improves age-associated phenotypes. This implies a potential to enhance overall healthspan (Fig 5.), addressing not only longevity but also the quality of life in the later stages.
Fig 5. mtON extended lifespan and healthspan. Light treatment began at day 1 of adulthood for all experiments. a, Survival curves of mtON-expressing animals (extrachromosomal array). Only mtON activation (+ATR +light) significantly extended lifespan, log-rank (MantelâCox) test, *P = 0.019. Detailed statistical information for all lifespans is presented in Supplementary Table 1. b, Survival curves of mtON-expressing animals (CRISPR insertion). mtON activation significantly extended lifespan compared to the light control by log-rank (Mantelâ Cox) test, *P = 0.0001, gray and light-green curves.
Berry, Brandon J et al. âOptogenetic rejuvenation of mitochondrial membrane potential extends C. elegans lifespan.â Nature aging vol. 3,2 (2023): 157-161. doi:10.1038/s43587-022-00340-7
Luminovaâs long-term vision involves upgrading mtON for functionality in inner organs. The hypothesis is that whole-body mtON gene therapy can increase human longevity. This ambitious goal positions the company to explore broader applications beyond the initial focus on eye aging.
Experimental plan and budget
MILESTONE 1: Assess the bio-distribution of mtON in the mouse eye
The team will use AAV2/9 and use two methods of injections of AVV-mtON in the eye. The team will then observe the type of cells that express mtON and confirm its mitochondrial localization. Next, the team will proceed with in vivo assessment of mtON activity functionality of mtON in isolated mitochondria. Finally, the team will determine the optimal dosage of the AVV for the next steps.
MILESTONE 2 â Assess the therapeutic benefit of mtON in the mouse eye
A) The team will test if mtON attenuates age-associated vision loss. The team will first inject AAV-mtON to the eye of old mice and test whether neuronal activity and metabolic rates of retinal cells are improved, along with vision. The team will also assess the accumulation of metabolic waste byproducts, such as lipofuscin. In parallel, the team will inject AVV-mtON in 8 months old mice to test a preventive approach and follow up with the mice until they reach old age. The team will test the benefits of mtON activation over time and measure whether less metabolic byproduct waste accumulates with time in the eye and if mtON treatment delays the onset of age-associated vision loss.
B) In parallel, the team will employ a diabetic retinopathy mouse model by injecting STZ to mice. Diabetic retinopathy is characterized by a hypoxic environment, mitochondrial dysfunction, and an accumulation of toxic byproducts and mtON treatment is an ideal gene therapy. The team will administer AAV-mtON to mice before and after STZ injection and evaluate the preventive and post-injury therapeutic potential of mtON. The team will follow similar assessments as described in section A.
Collectively, this proposal will allow the team to conduct a thorough pre-clinical trial in mice that will provide a suitable basis to move forward towards clinical trials in humans. This will also be the first critical step to translating mtON technology into humans â not only to treat aging, but to eventually explore the potential for enhancing human longevity through the integration of partially solar-powered mechanisms.
Pending successful results, we will seek funding to continue clinical trials in a timely manner.
Budget
$140,000 for two years
VitaDAO Funding Terms
This project will be funded via a Joint Development Agreement, to collaboratively develop a project. Luminova retains ownership of the intellectual property, while using IP-NFT and IPT technology for project management and governance. Funding, profits, and decision-making processes are shared, with specific conditions outlined for when Luminova regains full control of the project and how profits are distributed among token holders. Finer details will be ironed out in ongoing negotiation.
- Timeline
Relevance to Longevity
This project focuses on combating age-related vision loss. Successfully treating this condition promises to significantly improve life quality for the elderly.
The ambitions of the project aims to demonstrate that the treatment, starting with the eye, could be an approach to slow down or reverse aging in the entire body since many age-related diseases are associated with mitochondrial dysfunction, the technologyâs positive influence on mitochondrial health may have preventive or therapeutic implications for diseases such as cardiovascular disorders, neurodegenerative conditions, and metabolic diseases. This method uses solar energy to increase the bodyâs energy production, a novel and new approach that isnât yet available on the market.
The project covers the fundamental challenges of aging: cellular senescence, mitochondrial dysfunction, accumulation of toxic waste, and systemic vascular decline.
Team
Dr. Shahaf Peleg, Project Lead
- PhD Georg-August-UniversitÀt Göttingen 2010; BSc Ben Gurion University, Beer Sheva 2006
- Tenured Group Leader at the Research-Institute for Farm Animal Biology (FBN), Dummerstof, Germany
- Luminova Biotech, CEO
Shahaf focuses on novel approaches to extend healthy lifespan, including enabling metazoans to harness the energy of light and translate it to chemical energy in their mitochondria.
Dr. Andrew Wojtovich
- Assoc. Prof. Department of Anesthesiology and Perioperative Medicine (SMD)
- Assoc. Prof. Department of Pharmacology and Physiology (SMD), University of Rochester
- Luminova Biotech, CSO
Andrew uses optogenetics to study the role of site-specific ROS production in mitochondrial physiology and hypoxic stress signalling. His work developed the mtON technology to control mitochondrial function using light.
Peter Hungerford
- Luminova Biotech, CFO
Peter graduated from Syracuse University with a degree in Accounting and Economics and built a real estate portfolio of over 1,000 units. To date, his cumulative transaction volume is in excess of $5 billion.
Strengths
Innovative Approach: Luminovaâs focuses on rejuvenating mitochondrial function through the groundbreaking use of optogenetics, presenting a novel approach to address multiple aging hallmarks simultaneously.
Exclusive Technology: Luminova Biotech holds exclusive rights to mtON technology, a light-activated proton pump engineered to enhance mitochondrial function independently of oxidative phosphorylation.
Strategic Target: Focusing on mitochondrial membrane potential as a target is strategic, given its central role in aging. The technology directly addresses the decline in mitochondrial membrane potential associated with aging, presenting a holistic solution.
Application to Aging Phenotype: The project aims to improve the aging phenotype by targeting age-related vision loss as an early-stage proxy. This strategic focus allows for comprehensive pre-clinical trials, particularly in mice, with the potential to extend to broader applications beyond the initial eye aging scope.
Ambitious Long-Term Vision: Luminovaâs long-term vision involves upgrading mtON for functionality in inner organs, with the ambitious goal of whole-body mtON gene therapy to increase human longevity. This ambitious vision positions the project to explore broader applications beyond the initial focus on eye aging.
Risks
Early Stage Technology: The projectâs reliance on a relatively untested method in higher organisms â using light energy for mitochondrial stimulation â is a significant risk. The effectiveness and safety of this approach in long-term human applications remain to be thoroughly validated.
Long Development Timeline: From initial research to clinical trials and technological advancements for treatment of inner organs, the timeline can span many years, if not decades. However, the application to the eye would be aided by a precedent set for gene therapy approval for eye administration.
Complexity in Treating Aging: Aging is a complex and multifactorial process. While the project aims to address several aging-related issues simultaneously, the interplay of these factors in aging is not fully understood. This complexity could pose challenges in accurately assessing the treatmentâs efficacy and potential side effects.
Luminova pitch recording and transcript
Senior Review
Reviewer 1 (total score 4.1):
Overall positive. Appreciates the novelty, potential market entry due to existing therapies, and the projectâs alignment with their interests in exploration and innovation. Suggests the project could benefit from additional expertise in ocular gene therapies and navigating regulatory pathways.
Concerns: Questions the technologyâs maturity, specificity to certain pathophysiological mechanisms, effects on mitochondrial function beyond ATP production, and potential immune responses to foreign protein expression. Suggests further studies in other mouse models and monitoring immune activation and stress markers in response to the fungal protein.
Reviewer 2 (total score 4.5):
Overall positive. Highlights the strong team, appropriate choice of the eye for initial trials, step towards mammalian systems, and translatability to human diseases. Commends the novel mechanism and overall strategy.
Concerns: Expresses concern over the clarity and complete understanding of the mechanism, potential surprises, and believes the budget may be underestimated. Encourages contingency planning for potential setbacks.
Reviewer 3 (total score 2.8):
Positive Aspects: Acknowledges the novelty of the technology and the strong scientific team.
Concerns:
Impact on Disease Unclear: Doubts about the technologyâs ability to significantly impact human disease due to unclear benefits of increased mitochondrial activation.
Complex System with Modest Results: Notes the complexity of the system and its modest increase in lifespan, questioning the translatability to viable therapy.
Lack of Drug Development Expertise: Suggests the team lacks expertise in drug development and could benefit from consulting with experts or organizations with experience in viral drug products.
Uncertain Patent Situation: Unclear about the status of patent applications related to the work.
Skepticism about Disease-Solving Capability: Questions the approachâs ability to address specific diseases like diabetic retinopathy, given the focus on increasing mitochondrial energy production without a clear mechanism for reversing eye damage.
Responses from applicant:
Lack of Drug Development Expertise:
The project team has secured expertise from Dorothea Skowronska-Krawczyk, an eye expert at UCI, to consult on the project.
They have also partnered with a CRO specializing in preclinical eye experiments, with plans already finalized and ready to proceed. This partnership is expected to supplement the core teamâs capabilities effectively.
Questioning the Efficacy and Complexity of the System:
The team references the clinical validation of using optogenetics in treating eye diseases by Nanoscope Therapeutics as evidence of a viable path towards developing drug products.
They acknowledge the modest lifespan increase observed in their studies but argue that their approach is less complex for the eye, given its natural synthesis of ATR and regular exposure to light.
Concerns About the Systemâs Impact on Disease:
The team suggests that the perception of the effectiveness of interventions in worms versus humans may not always hold. They propose that certain interventions might show modest effects in model organisms like worms but could have significant impacts in humans, particularly for conditions like cancer where the model organismâs biology might not fully capture the therapeutic potential.
They further argue that the eyeâs natural biology makes it a more straightforward system for their approach, leveraging its inherent synthesis of ATR and daily light exposure, potentially simplifying the application of their technology compared to the initial experiments in worms.
Reviewer 4 (total score: 3.8):
Overall positive. Acknowledges the projectâs success in demonstrating a proof of concept in C. elegans and recognizes the significant market potential for treating age-related vision loss. They find the projectâs goals reasonable and achievable within the set budget and timeline. They highlight the novelty of using optogenetics to reverse age-associated decline but remain cautious about the projectâs ability to enhance health span in mammals without further clarification on the approach to achieve a light-independent system.
The main concern about the technologyâs applicability beyond the eye and its dependence on light for effectiveness.
Response from applicant: There is a clear idea on how this can be done and there are studies underway on this front but cannot comment much at this point.
Bibliography
Luminova Main Papers
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Optogenetic rejuvenation of mitochondrial membrane potential extends C. elegans lifespan
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All-optical spatiotemporal mapping of ROS dynamics across mitochondrial microdomains in situ
On improving mitochondrial functions
- Mitochondrial Potentiation Ameliorates Age-Related Heterogeneity in Hematopoietic Stem Cell Function
- An Early-Age Increase in Vacuolar pH Limits Mitochondrial Function and Lifespan in Yeast
- Calcium channel ITPR2 and mitochondriaâER contacts promote cellular senescence and aging
- Light-activated mitochondrial fission through optogenetic control of mitochondria-lysosome contacts
Visible lights reduces longevity in C.elegans
Advances in Ophthalmic Optogenetics
Optogenetics against senescence
- Photoactivatable senolysis with single-cell resolution delays aging | Nature Aging
- Illuminating anti-ageing | Nature Chemistry
- Agree
- Revisions Requested (Detail in Comments)
- Disagree