Salk Institute scientist and serial biotech entrepreneur Ron Evans showed new mouse work yesterday that could point to a long-sought holy grail for diabetes treatment.
The study, published in Nature,involved a new approach for islet cell transplant, a diabetes therapy where dysfunctional insulin-producing cells on the pancreas are replaced with functional ones. The treatment has been around for a while and new ones are in development, but theyve been hampered by the fact that patients will reject the cells unless they go on immuno-suppressive drugs.
But, working with iPSC stem cells and tricks from immunotherapy, Evans and his team developed what they called immune-evasive clusters of cells essentially mini pancreases. Placed into mice, these cells secreted proper amounts of insulin without coming under fire from immune cells, pointing the way toward a similar approach in humans.
Most type 1 diabetics are children and teenagers, Evans said in a statement. We hope that regenerative medicine in combination with immune shielding can make a real difference in the field by replacing damaged cells with lab-generated human islet-like cell clusters that produce normal amounts of insulin on demand.
Evans, who most recently co-founded and sold to Astellas the exercise-in-a-pill biotech Mitobridge, and his co-authors are hardly alone in this race. ViaCyte has received major backing from both private donors and the Juvenile Diabetes Research Foundation for their own stem cell-derived islet cell transplant. Flagship also launched Sigilon earlier this year with $80.3 million in Series B funding. With technology from Robert Langer, the company is developing polymers that can encase cells for transplant. A diabetes program is in the IND-enabling phase with Eli Lilly.
Four years ago, Evans and his team figured out how to make functional pancreatic beta cells for the first time, using a series of molecular switches to get them to not only produce insulin but do so in response to glucose, as normal cells do. But that still left questions about how to go from individual cells into pancreas-like clusters, and how to get those cells to avoid the immune system when transplanted.
To cluster the cells, Evans lab figured out that a protein involved in embryonic development called WNT4 could trigger the same molecular mechanisms that created the functional beta cells. Adding that protein led to the creation of 3-D clusters of cells similar to what would be seen in a humans. They called them human islet-like organoids, or HILOs.
To make those organoids, Evans and Eiji Yoshihara, a scientist in his lab, stole a trick from another field: immuno-oncology. Using short pulses of a protein called interferon gamma, Yoshihara got the cells to express PD-L1.
The PD-L1 had the opposite effect of the PD-L1 inhibitors used in cancer. Rather than making sure T cells saw a tumor, they made sure T cells didnt see the islet cells.
This is the first study to show that you can protect HILOs from the immune system without genetic manipulation, Michael Downes, an author on the paper, said. If we are able to develop this as a therapy, patients will not need to take immune-suppressing drugs.
Link:
- Secret to eternal youth? John Cleese extols virtues of stem cell treatment - The Guardian - April 26th, 2024
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- Parental Fury After Stem Cell Bank Ruins Thousands of Samples in Singapore - Bloomberg - April 24th, 2024
- Pressure in the womb may influence facial development - Phys.org - April 24th, 2024
- Circadian regulation of cancer stem cells and the tumor microenvironment during metastasis - Nature.com - April 24th, 2024
- Shinobi strikes deal with electronics powerhouse Panasonic to create new cell therapy manufacturing platform - FiercePharma - April 19th, 2024
- The Stem Cells Market expected to grow at the value of USD 28.1 Billion by 2030 with a 10.48% CAGR. - WhaTech - April 19th, 2024
- Scientists produce in vitro model of cell differentiation during early facial development - Phys.org - April 19th, 2024
- Somite: AI-Based Stem Cell Therapy Company Closes $5.3 Million In Funding - Pulse 2.0 - April 19th, 2024
- Paralyzed man who can walk again shows potential benefit of stem cell therapy - ABC News - April 5th, 2024
- Stem Cells Market Innovations Investigated by Industry Overview and Global Forecast - WhaTech - April 5th, 2024
- New tool provides researchers with improved understanding of stem cell aging in the brain - University of Wisconsin-Madison - April 1st, 2024
- The PTM profiling of CTCF reveals the regulation of 3D chromatin structure by O-GlcNAcylation - Nature.com - April 1st, 2024
- Signatures of Autofluorescence Used To Study Stem Cells Aging in the Brain - Technology Networks - March 30th, 2024
- Two decades of embryonic stem cells: a historical overview - March 28th, 2024
- Researchers at Phoenix Children's First in the World to Produce Mouse Lungs in Rats - The Malaysian Reserve - March 26th, 2024
- Unlocking the mysteries of early human development through blastoid models - News-Medical.Net - March 24th, 2024
- Unlocking the Secrets of Aging: Researchers Reveal Key to Intestinal Balance - SciTechDaily - March 17th, 2024
- Human stem-cell-based therapy for Parkinson's disease proven safe PET - BioNews - March 13th, 2024
- Exploring the inner workings of stem cells: When location changes the message - Phys.org - March 9th, 2024
- Confronting IVF: Human Embryos Are Persons With a Right to Life - Walter Bradley Center for Natural and Artificial Intelligence - March 7th, 2024
- When Location Changes the Message - UConn Today - University of Connecticut - March 7th, 2024
- Distinct pathways drive anterior hypoblast specification in the implanting human embryo - Nature.com - March 6th, 2024
- In light of the Alabama court ruling, a look at the science of IVF : Short Wave - NPR - March 3rd, 2024
- The weird way Alabamas embryo ruling takes on artificial wombs - MIT Technology Review - February 25th, 2024
- Alabama's biggest hospital to suspend transfer of embryos after court ruling - ABC News - February 24th, 2024
- Stem Cells: FAQs Answered for Patients and Caregivers - Corporate Wellness Magazine - February 22nd, 2024
- Charles River Collaborates with Pluristyx, Expanding its Portfolio of Human Pluripotent Stem Cells - Business Wire - February 22nd, 2024
- Breakthrough Stem Cell Treatments for Stroke Recovery: What You Need to Know - Medical Tourism Magazine - February 20th, 2024
- Global Cell Isolation Market Size To Worth USD 13.4 Billion By 2033 | CAGR of 12.5% - Yahoo Finance - February 20th, 2024
- The Mechanism of Positional Cues in Embryonic Development and Signaling Molecules in Cell Fate - Medriva - February 18th, 2024
- Regeneration of the Retina Using Pluripotent Stem Cells: A Comprehensive Review - Cureus - February 5th, 2024
- CRISPR/Cas9-mediated deletion of a GA-repeat in human GPM6B leads to disruption of neural cell differentiation from ... - Nature.com - January 29th, 2024
- Global Human Embryonic Stem Cell Market Analysis 2024-2034: A Deep Dive into Applications, End-users, and ... - GlobeNewswire - January 26th, 2024
- No, Rep. Steve Scalise Didn't Vote Against Stem Cell Research From Which He Is Now Benefiting - Yahoo News - January 14th, 2024
- Clinical applications of stem cell-derived exosomes | Signal Transduction and Targeted Therapy - Nature.com - January 12th, 2024
- How Stem Cell Embryo Models Won Method of the Year - Technology Networks - January 12th, 2024
- Changing the public perception of human embryology - ESHRE - January 11th, 2024
- How the Human Body Regenerates New Cells Every Year - Laughing Squid - January 4th, 2024
- Lab-grown models of embryos increasingly resemble the real thing | Mint - Mint - January 4th, 2024
- Singapore should ban reproductive applications of synthetic human embryos - BioEdge - January 4th, 2024
- Machine learning-based estimation of spatial gene expression pattern during ESC-derived retinal organoid ... - Nature.com - December 21st, 2023
- The development of embryos may be less shaped by genes than we thought - New Scientist - December 21st, 2023
- Embryonic stem cell - Wikipedia - December 13th, 2023
- Researchers discover a mechanism that controls the identity of stem cells - Phys.org - December 9th, 2023
- 'Fascinating and completely unexpected': Tiny robots fix neurons - FierceBiotech - December 5th, 2023
- Establishment and characterization of matched immortalized human ... - Nature.com - December 5th, 2023
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- Scientists Still Can't Be Trusted on Gene Editing - Progressive.org - December 5th, 2023
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- What happens when nature and cities collide - CNN - December 3rd, 2023
- Pro-Life This Week: December 1, 2023 | ALL - All.org - December 3rd, 2023
- A look at the international race to create human eggs and sperm in ... - NPR - December 1st, 2023
- Synthetic genetic circuits to uncover the OCT4 trajectories of ... - Science - December 1st, 2023
- Why the Novo Nordisk Foundation is betting big on stem cells - pharmaphorum - November 29th, 2023
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- Fetal Bovine Serum Market to reach USD 1.26 Bn by 2029, emerging at a CAGR of 5.3 percent according to a ne... - WhaTech Technology and Markets News - November 29th, 2023
- Implications of Gene Therapy in Dentistry and Periodontics: A ... - Cureus - November 27th, 2023
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- Drugs identified that may reverse brain fog caused by COVID-19 - New Atlas - November 27th, 2023
- The genes that made us truly human may also make us ill - BBC.com - November 25th, 2023
- Therapy to treat rare, hereditary diseases: Study - Hindustan Times - November 25th, 2023
- How the growth of a giant single cell is intertwined with daily self-rhythms - Phys.org - November 25th, 2023
- On this day: Mahmoud Abbas becomes leader of Fatah in 2004 - In-Cyprus - November 25th, 2023
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