Tag Archives: stem cells

Looking Below the Surface: Stem Cell Behavior in Real Time

Scientists have for the first time watched and manipulated stem cells as they regenerate tissue in an uninjured mammal, Yale researchers report July 1, 2012, online in the journal Nature.

Using a sophisticated imaging technique, the researchers also demonstrated that mice lacking a certain type of cell do not regrow hair. The same technique could shed light on how stem cells interact with other cells and trigger repairs in a variety of other organs, including lung and heart tissue. Valentina Greco, assistant professor of genetics and of dermatology at Yale School of Medicine, and her team focused on stem cell behavior in the hair follicle of the mouse. The accessibility of the hair follicle allowed real-time and non-invasive imaging through a technology called 2-photon intravital microscopy. Using this method, Panteleimon Rompolas, a post-doctoral fellow in Greco’s lab and lead author of this paper, was able to study the interaction between stem cells and their progeny, which produce all the different types of cells in the tissue. The interaction of these cells with the immediate environment determines how cells divide, where they migrate and which specialized cells they become. The technology allowed the team to discover that hair growth in mice cannot take place in the absence of connective tissue called mesenchyme, which appears early in embryonic development.

The study was funded by an Alexander Brown Coxe postdoctoral fellowship. This work was supported in part by the American Skin Association and the American Cancer Society and the Yale Rheumatologic Disease Research Core Center and the National Institutes of Health.

Other Yale authors include Elizabeth Deschene, Giovanni Zito, David G. Gonzalez, Ichiko Saotome and Ann M. Haberman.

Credits:
Produced by Yale School of Medicine’s Office of Institutional Planning and Communications (medicine.yale.edu/ipc)

Producer/director: Michael Fitzsousa

Stem cell videos courtesy of Panteleimon Rompolas

Opening graphic: Jennifer Stockwell

Two-photon microscope diagram © 2010 LaVision BioTec GmbH, Germany
Skin illustration © 2008 Terese Winslow; U.S. government has certain rights

Special thanks: Kirsten Cartoski, Wes Choy, Doug Forbush, Yale Broadcast and Media Center

Stem Cell Therapy for Spinal Cord Injury

Part 1 of a 5-Part Series: Dr. Neil Riordan discusses mesenchymal stem cell sources from umbilical cord Wharton’s jelly, stem cell expansion, therapeutic potential of umbilical cord mesenchymal stem cells vs. bone marrow mesenchymal stem cells, CD34+ hematopoietic stem cells from umbilical cord blood and the scientific rationale supporting stem cell treatment of spinal cord injury. View part 2 here: http://youtu.be/I17-wYIEZ84
Visit the Stem Cell Institute at www.cellmedicine.com

Quant Pioneers, Experts and Investors to Discuss Rapid Market Evolution

NEW YORK – The stem cell and regenerative medicine industry is facing a serious funding problem. Just as the first therapies are reaching commercialization, biotechs in phase 2 and 3 are struggling to raise the funds needed to finish their studies.

Over 300 biotechs, pharmas, investors, and suppliers will be meeting in Boston on September 20-21 at the Stem Cells USA and Regenerative Medicine Congress 2012. Key speakers include Todd McAllister, CEO of Cytograft Tissue Engineering, Gary Rabin, CEO of Advanced Cell Technology, Geoff MacKay, CEO of Organogenesis, and Gil Van Bokkelen, Chairman and CEO of Athersys.

This event is designed to help biotechs learn the strategies necessary to raise capital and sustain clinical development through phase 3 and help pharmas identify the most lucrative companies and technologies currently being developed in the space.  Furthermore, this event is co-located with the first-ever World Cord Blood Congress. Participants will learn:

~ How to raise and sustain funding through phase I, II, and III trials

~ How to source the newest and most exciting stem cell technology

~ How to take a product from inception to commercialization

~ How to ensure reimbursement for novel regenerative therapies

To register or learn more visit www.terrapinn.com/stemcellsusa

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Terrapinn is a business media company. Our products are trade exhibitions, conferences, training solutions and electronic and print publications. More information and a schedule of our events can be found at www.terrapinn.com.

Researchers discover drug that destroys human cancer stem cells

A team of scientists at McMaster University has discovered a drug, thioridazine, successfully kills cancer stem cells in the human while avoiding the toxic side-effects of conventional cancer treatments. Mick Bhatia is interviewed in this video regarding the discovery.

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Stem Cells from Bone Marrow Grows New Bone

A research team led by UC Davis Health System scientists has developed a novel technique to enhance bone growth by using a molecule which, when injected into the bloodstream, directs the body’s stem cells to travel to the surface of bones. Once these cells are guided to the bone surface by this molecule, the stem cells differentiate into bone-forming cells and synthesize proteins to enhance bone growth. The study, which was published online today in Nature Medicine, used a mouse model of osteoporosis to demonstrate a unique treatment approach that increases bone density and prevents bone loss associated with aging and estrogen deficiency.

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Meet Cord Blood Registry’s Leader of Laboratory Operations

Cord Blood Registry takes pride in leading the cord blood banking industry with its state-of-the-art lab. Meet Kristen, who leads the effort to make sure we’re providing our clients with the best once their babies’ stem cells arrive in Tucson. Kristen is one of the many people who make sure that, from that first phone call to the day your baby’s stem cells are collected and stored, you receive the industry’s best service and support. For more information on CBR’s processes, visit: http://www.cordblood.com/best-cord-blood-bank/best-cord-blood-banks/?mtag=JCPH.

Learn more about cord blood stem cells here http://www.cordblood.com/?mtag=JCPH.

Stem Cells Reverse Heart Damage

Via Newsy.com

By AlysaCartee, Anchor Megan Murphy

A breakthrough discovery in stem cell treatments. A patient’s own stem cells could actually regenerate the heart after a heart attack. WFLD explains the findings.

“The studies found that recent heart attack victims who receive stem cell infusions had a drop in unhealthy heart scar tissue from 24 to 12 percent.”

The procedure is minimally invasive. A catheter is inserted through the patient’s vein and a piece of heart muscle about the size of a peppercorn is removed.

That biopsied tissue is then grown in a petri dish and reintroduced to the damaged portion of the heart. This new procedure could change the way heart attacks are treated. ABC reports the typical damage a heart attack leaves and the limited options for treatment.

“The damaged scar tissue that results from a heart attack diminishes heart function, which can ultimately lead to enlargement of the heart. At best … there are measures doctors can try to reduce or compensate for the damage, but in many cases, heart failure ultimately sets in, often requiring mechanical support or a transplant.”

But the new treatment challenges the conventional wisdom that once the heart is damaged, it can’t be repaired. Doctor Sanjay Gupta told CNN this breakthrough in the use of stem cells means a few different things for the medical community.

“We’ve been talking about the promise of stem cells for so long but people have really yet to see it in action. … It really proved two things. First of all that this could be done safely. That’s always the first question. And second that it provided some benefit.”

As Fox News reports, the study is positive — but there are a few mysteries that need to be solved.

“…while the patients grew new heart muscle and saw a dramatic reduction in scar tissue, the actual function of their hearts did not show a significant improvement. And it appeared the stem cells themselves may not have turned into cardiac muscle, but rather they stimulated the heart to produce new muscle cells.”

Researchers will follow the patients who received the treatment to document long term effects, and a follow up study is planned for later this year.

Stem cell treatment could fight blindness

A UCLA eye surgeon has developed a possible stem cell treatment for Macular Degeneration, the leading cause of blindness in older Americans. Dr. Jon LaPook explains how it works. (Jan. 23) (CBS News)

Suzanne Somers’ Stem Cell Breast Reconstruction Surgery – Episode 1

Watch Suzanne Somers’ amazing breast reconstruction surgery on Suzanne Somers Breaking Through – Episode 1. See how Suzanne used her stem cells to regrow her breast after battling breast cancer.

See a new episode of Suzanne Somers Breaking Through every Thursday.

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Skin cells as stem cells – medicine’s next big thing

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