---
title: "New study links tau to mitochondrial reverse electron transport in Alzheimer’s models"
id: "stat-news-0-stat-study-reveals-new-role-for-tau-a-top-target-for-alzheimer-s-drug"
canonical_url: "https://medichelpline.com/clinical-feed/stat-news-0-stat-study-reveals-new-role-for-tau-a-top-target-for-alzheimer-s-drug"
content_type: "clinical_feed_article"
specialty: "Neurology"
source_name: "STAT News"
source_url: "https://www.statnews.com/2026/08/06/research-finds-how-tau-targets-cells-structure-alzheimers-drug-development/?utm_campaign=rss"
published_at: "2026-08-06T15:00:00.000Z"
evidence_level: "Verified Feed"
license: "CC-BY-NC-4.0 / Informational Use"
---
# New study links tau to mitochondrial reverse electron transport in Alzheimer’s models
## Provenance & Clinical Metadata
- **Canonical URL:** https://medichelpline.com/clinical-feed/stat-news-0-stat-study-reveals-new-role-for-tau-a-top-target-for-alzheimer-s-drug
- **Specialty:** [Neurology](https://medichelpline.com/clinical-feed/neurology.md)
- **Primary Source:** STAT News
- **Source URL:** [Original Journal Publication](https://www.statnews.com/2026/08/06/research-finds-how-tau-targets-cells-structure-alzheimers-drug-development/?utm_campaign=rss)
- **Published At:** 2026-08-06T15:00:00.000Z
- **Evidence Rating:** Verified Feed
## Executive GIST (TL;DR)
- Researchers led by Stanford identified a previously unrecognized role for the protein **tau** in disrupting mitochondrial function relevant to neurodegeneration. - The study reports that tau induces **reverse electron transport** in mitochondria, driving electrons backward through the electron transport chain. - This retrograde electron flow generates **reactive oxygen species (ROS)**, cellular stress, and inflammation in affected cells. - Blocking reverse electron transport in experimental systems mitigated many of the harmful cellular effects attributed to tau. - In behavioral models, inhibiting this process improved learning and memory in both flies and mice expressing tau-related pathology. - Analyses of human cells grown in vitro and of patient brain tissue suggested that the tau-associated retrograde electron flow may also occur in humans, and that blocking it could improve neuronal health. - Two study authors have formed a biotech startup to pursue therapeutic testing of approaches that block the retrograde mitochondrial electron flow. - The report does not provide details in this article on the precise molecular interventions used to block reverse electron transport, nor on safety, dosing, or clinical trial plans — those specifics were not reported in the source. - Whether the experimental findings will translate to clinical benefit in people remains uncertain and requires further preclinical and clinical evaluation.
## Clinical Analysis & Structured Key Points
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Test your knowledge with our new weekday mini crossword [ Start solving ](https://www.statnews.com/stat-mini-crossword/) [STAT Plus](https://www.statnews.com/stat-plus/)[Biotech](https://www.statnews.com/category/biotech/) # Study reveals new role for tau, a top target for Alzheimer’s drug development ## Stanford scientists pursue mechanism for protein’s effect on cells in neurodegeneration * [Manage alerts for this article](https://www.statnews.com/my-account/edit/#emails) * Email this article * [Share this article](https://www.statnews.com/2026/08/06/research-finds-how-tau-targets-cells-structure-alzheimers-drug-development/?utm_campaign=rss) ![](https://www.statnews.com/wp-content/uploads/2026/08/C0508954-Tau_protein_clusters_TEM-645x645.jpg) Tau proteins, in red, are thought to associate with microtubules in maintaining a neuron’s shape. They are found in brain diseases like Alzheimer’s.NIAID/NIH/Science Photo Library ![](https://www.statnews.com/wp-content/uploads/2022/01/jonathan-w-avatar-round-80x80.png) By [Jonathan Wosen](https://www.statnews.com/staff/jonathan-wosen/) Aug. 6, 2026 West Coast Biotech & Life Sciences Reporter ![](https://www.statnews.com/wp-content/uploads/2022/01/jonathan-w-avatar-round-80x80.png) [Jonathan Wosen](https://www.statnews.com/staff/jonathan-wosen/) 1. [](https://www.linkedin.com/in/jonathan-wosen-phd-b69172147/ "Linkedin") 2. [](https://x.com/JonathanWosen "X") jonathan.wosen@statnews.com Jonathan Wosen is STAT’s West Coast biotech & life sciences reporter. You can reach Jonathan on Signal at jwosen.27. In the race for new ways to treat Alzheimer’s and other devastating neurologic diseases, the protein tau has become a tantalizing target for drug developers. A new study lends support to those efforts by describing a previously unknown role that tau plays in neurodegeneration — and suggesting a novel way researchers might block the protein’s activity. A team led by Stanford scientists found that tau can gum up the works of a cell’s mitochondria, its energy-producing powerhouse. The protein sends electrons flowing in the opposite direction of their usual microscopic relay race, a reversal that generates reactive oxygen species, cellular stress, and inflammation. Scientists found that blocking this phenomenon, known as reverse electron transport, reversed many of the harmful effects and improved learning and memory in flies and mice. Advertisement Whether the same will hold true in people is for now unclear, though an analysis of human cells grown in the lab and patient brain tissue suggests blocking the retrograde flow of electrons could make neurons healthier. Two of the study’s authors have started a biotech startup to put this idea to the test. [![STAT+](https://www.statnews.com/wp-content/themes/stat/images/stat-plus-logo.svg)](https://www.statnews.com/stat-plus/) To read the rest of this story subscribe to STAT+. 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