Powerful stem cells injected into the eyes of 18 patients with diseases causing progressive blindness have proven safe and dramatically improved the vision of some of the patients, scientists report.
Three years of follow up show that vision improved measurably in seven of the patients, the team at Advanced Cell Technology report in the Lancet medical journal. In some cases, the improvement was dramatic.
For instance, we treated a 75-year-old horse rancher who lives in Kansas, said Dr. Robert Lanza, chief medical officer for the Massachusetts-based company. The rancher had poor vision 20/400 in one eye.
Once month after treatment his vision had improved 10 lines (20/40) and he can even ride his horses again. Other patients report similarly dramatic improvements in their lives, Lanza added. For instance, they can use their computers or read their watch. Little things like that which we all take for granted have made a huge difference in the quality of their life.
Not all the patients improved and one even got worse. But overall, Lanzas team reported, the patients vision improved by three lines on a standard vision chart.
"They can use their computers or read their watch. Little things like that which we all take for granted have made a huge difference in the quality of their life.
The researchers treated only one eye in each patient. There was no improvement in vision in the untreated eyes.
The patients had either Stargardts disease, a common type of macular degeneration, or dry macular degeneration, which is the leading cause of blindness in the developed world. There are no treatments for either condition, and patients gradually lose vision over the years until they are, often, blind.
Lanzas team used human embryonic stem cells, made using human embryos. They are powerful cells, each one capable of giving rise to all the cells and tissues in the body. The ACT team took one cell from embryos at the eight-cell stage to make batches of these cells.
They reprogrammed them to make immature retinal cells, which they injected into the eyes of the patients. The hope is that the immature cells would take up the places of the degenerated cells and restore vision.
More:
Vision Quest: Stem Cells Treat Blinding Disease
- Stem Cells In Human Trials - September 15th, 2011 [September 15th, 2011]
- NZ Stemcell Trials - Part One - September 15th, 2011 [September 15th, 2011]
- CIRM Major Facilities Speed Stem Cell Science and Create Jobs - September 15th, 2011 [September 15th, 2011]
- Geron's Embryonic Stem Cell Clinical Trial for Spinal Cord Injury - September 15th, 2011 [September 15th, 2011]
- Hans Keirstead - Stem Cell Research Human Clinical Trials - September 15th, 2011 [September 15th, 2011]
- Stem-Cell Human Trials - September 15th, 2011 [September 15th, 2011]
- Geron: FDA Clearance for Human Clinical Stem Cell Trials - September 15th, 2011 [September 15th, 2011]
- Eric Legrand Rutgers University shout out, Listen up! - September 20th, 2011 [September 20th, 2011]
- How to Mend a Broken Heart - September 20th, 2011 [September 20th, 2011]
- Human Embryonic Stem Cell History! - September 20th, 2011 [September 20th, 2011]
- Robert Lanza - ACT - Stem cells and organ cloning interview - September 20th, 2011 [September 20th, 2011]
- Toonari Post Health News: Europe's first clinical trial using human embryonic stem cells - September 23rd, 2011 [September 23rd, 2011]
- Diabetes: Spotlight on Stem Cell Research - Ed Baetge - September 23rd, 2011 [September 23rd, 2011]
- Talking Apes being created by Science | Planet of the Apes, here we come! - September 24th, 2011 [September 24th, 2011]
- Health news: Internet use, sleep, human stem cell research - September 24th, 2011 [September 24th, 2011]
- Geron - September 24th, 2011 [September 24th, 2011]
- Batten Disease: Spotlight on Stem Cell Research - A Father's Story - September 24th, 2011 [September 24th, 2011]
- The Frankenstein Syndrome Trailer - September 24th, 2011 [September 24th, 2011]
- Leukemia: Spotlight on Stem Cell Research - Patient Stories - September 24th, 2011 [September 24th, 2011]
- Geron Corp. Initiates First Human Study Of Embryonic Stem-Cell Therapy - September 24th, 2011 [September 24th, 2011]
- Cardiovascular Therapies: Spotlight on Stem Cell Research - Yung-Wei Chi - September 24th, 2011 [September 24th, 2011]
- Stemcells come alive: Fix Mouse with severed spine ABCnews - September 24th, 2011 [September 24th, 2011]
- StemCells Gains 5% on Neural Stem Cell Trial in Spinal Cord Injury - September 24th, 2011 [September 24th, 2011]
- Stem-Cell Research on Animals - September 24th, 2011 [September 24th, 2011]
- First hESC Therapy Clinical Trial - September 24th, 2011 [September 24th, 2011]
- Stem Cell Testing on Human Subjects [Officially] Begins • NBC Nightly News • October 11th, 2010 - September 24th, 2011 [September 24th, 2011]
- Leukemia: Spotlight on Stem Cell Research - Catriona Jamieson - September 24th, 2011 [September 24th, 2011]
- First stem cell trial begins - September 24th, 2011 [September 24th, 2011]
- Parkinson's Disease: Spotlight on Stem Cell Research - Arnold Kriegstein - September 24th, 2011 [September 24th, 2011]
- Becoming a Blood Stem Cell Donor - September 24th, 2011 [September 24th, 2011]
- Stem cells might be able to reverse the effects of a heart attack. - September 24th, 2011 [September 24th, 2011]
- Horse Stem Cell Video.mp4 - September 25th, 2011 [September 25th, 2011]
- Stem cell trials to begin - September 25th, 2011 [September 25th, 2011]
- Lou Gehrig's Disease (ALS): Progress and Promise in Stem Cell Research - September 25th, 2011 [September 25th, 2011]
- Hans Keirstead - September 25th, 2011 [September 25th, 2011]
- Stem Cell Quiz - September 25th, 2011 [September 25th, 2011]
- NZ Stemcell Trials - Part Two - September 25th, 2011 [September 25th, 2011]
- Drug Trials in a Dish - September 25th, 2011 [September 25th, 2011]
- Rise and Walk - September 25th, 2011 [September 25th, 2011]
- Catriona Jamieson: Therapies Based on Cancer Stem Cells - September 27th, 2011 [September 27th, 2011]
- Vatican lending hand in adult stem cell research - September 28th, 2011 [September 28th, 2011]
- Why STEM-Enhance? - September 28th, 2011 [September 28th, 2011]
- Genetic Underpinnings of Alopecia Areata - September 29th, 2011 [September 29th, 2011]
- Batten Disease: Spotlight on Stem Cell Research - Ann Tsukamoto - September 29th, 2011 [September 29th, 2011]
- stem cell trial for leading causes of blindness - October 9th, 2011 [October 9th, 2011]
- Forbes Discusses Stem Cell Research - Video - October 13th, 2011 [October 13th, 2011]
- Bruce Conklin: Drug screening with stem cells - Video - October 13th, 2011 [October 13th, 2011]
- Human Trials of Embryonic Stem Cell Treatment Beginning - Video - October 13th, 2011 [October 13th, 2011]
- Rise and Walk - Video - October 13th, 2011 [October 13th, 2011]
- Mesenchymal Stem Cell Trials - Video - October 14th, 2011 [October 14th, 2011]
- Spinal Cord Injury: Progress and Promise in Stem Cell Research - Video - October 14th, 2011 [October 14th, 2011]
- Better Drugs Through Stem Cells - Video - October 16th, 2011 [October 16th, 2011]
- Adult Stem Cells Used To Rebuild Heart Tissue / Video - Video - October 16th, 2011 [October 16th, 2011]
- GARY RABIN- ADVANCED CELL TECHNOLOGIES 2011 - Video - October 21st, 2011 [October 21st, 2011]
- Stem cell treatment on horse a success, vet says - Video - October 21st, 2011 [October 21st, 2011]
- MAJOR EMBRYONIC STEM CELL BREAKTHROUGHS - Video - October 22nd, 2011 [October 22nd, 2011]
- Batten Disease: Spotlight on Stem Cell Research - Stephen Huhn - Video - November 13th, 2011 [November 13th, 2011]
- Human Cloning has Begun | Playing God? - Video - November 15th, 2011 [November 15th, 2011]
- Diabetes: Advancing Stem Cell Therapies - 2011 CIRM Grantee Meeting - Video - November 15th, 2011 [November 15th, 2011]
- Brain Tumors: Advancing Stem Cell Therapies - 2011 CIRM Grantee Meeting - Video - November 15th, 2011 [November 15th, 2011]
- Double Blind Trial of Stem Cells for Heart Failure - Video - December 4th, 2011 [December 4th, 2011]
- Cardiac Stem Cell Therapy Clinical Trial - Video - December 4th, 2011 [December 4th, 2011]
- Glasgow Hospital Conducts First Stem Cell Trials on Stroke Patients - Video - December 4th, 2011 [December 4th, 2011]
- Dr Dietrich discusses the Geron stem cell trial to treat acute spinal cord injury - Video - December 4th, 2011 [December 4th, 2011]
- Stem Cell Research Today: Larry Goldstein - CIRM Science Writer's Seminar - Video - December 7th, 2011 [December 7th, 2011]
- Stem Cell Clinical Trial for Heart Failure: Eduardo Marban - CIRM Spotlight on Disease - Video - December 22nd, 2011 [December 22nd, 2011]
- Clinical trials and stem cells: what patients should consider - Video - January 2nd, 2012 [January 2nd, 2012]
- Spare Parts for Humans: Tissue Engineers Aim for Lab-Grown Limbs, Lungs and More - Video - January 4th, 2012 [January 4th, 2012]
- CIRM Grant Writing: RFA's - Where does your Project Fit? - Video - January 5th, 2012 [January 5th, 2012]
- Prometheus and I: building new body parts from stem cells (15 Nov 2011) - Video - January 5th, 2012 [January 5th, 2012]
- News Bulletin 18 November 2011 -- The Christian Institute - Video - January 5th, 2012 [January 5th, 2012]
- The Brain on Trial: How Neuroscience Challenges the Law as We Know It - Video - January 5th, 2012 [January 5th, 2012]
- The Human Genome and Individualized Medicine - David Valle, MD - Video - January 5th, 2012 [January 5th, 2012]
- 2010 Professional of Distinction - Discovery Awards - Video - January 23rd, 2012 [January 23rd, 2012]
- Research at The Nebraska Medical Center Biologics Production Facility - Video - January 24th, 2012 [January 24th, 2012]
- ACT Announces Aberdeen Royal Infirmary in Scotland as Additional Site for Phase 1/2 Clinical Trial Using hESC-Derived ... - January 30th, 2012 [January 30th, 2012]
- StemCells, Inc. Announces Publication of Preclinical Data Demonstrating Its Human Neural Stem Cells Preserve Vision - January 31st, 2012 [January 31st, 2012]
- $30 million donation from Boris family will help McMaster turn stem cell research into therapy - February 6th, 2012 [February 6th, 2012]
- Stem Cell Treatment For Blindness Shows Promise In Trials - February 7th, 2012 [February 7th, 2012]
- ACT Announces Third Patient with Stargardt’s Disease Treated in U.S. Clinical Trial with RPE Cells Derived from ... - February 13th, 2012 [February 13th, 2012]