Breaking News
April 20, 2018 - FDA Alert: Certain Kratom-Containing Powder Products by Viable Solutions: Recall -Possible Salmonella Contamination
April 20, 2018 - What is heart failure?
April 20, 2018 - Inactivity of astronauts during spaceflights may have more pronounced effect on skeletal muscle than hypoxia
April 20, 2018 - New SIDS Info app seeks to reduce infant sleep-related deaths
April 20, 2018 - Wide-scale distribution of naloxone effectively prevents overdose deaths, study finds
April 20, 2018 - Triple-negative breast cancer found to be chemoresistant prior to treatment
April 20, 2018 - ACL tears occur the same way in women and men, study finds
April 20, 2018 - UT Southwestern researchers identify 170 potential therapeutic targets for lung cancer
April 20, 2018 - Finding the ‘keyhole’ to beat obesity at the cellular level
April 20, 2018 - Long-term exposure to cold temperatures reduces diabetes and obesity, shows study
April 20, 2018 - Metabolic Syndrome Common With Chronic Hep B Infection
April 20, 2018 - Tracking quality of life during prostate cancer treatment
April 20, 2018 - Study shows presence of beta-amyloid dimers in the brains of Alzheimer’s patients
April 20, 2018 - Researchers identify link between physical inactivity and increased risk of dying from cancer
April 20, 2018 - Breathtaking evolution amongst Indonesian tribe
April 20, 2018 - Study shows testosterone deficiency in men is associated with chronic diseases
April 20, 2018 - Simple one-page form helps improve satisfaction of patients with care
April 20, 2018 - Researchers evaluate accuracy of simple blood test to predict lung cancer
April 20, 2018 - Study looks at sperm producing ability in testicular cancer patients
April 20, 2018 - Exercise In, Vitamin D Out for Preventing Falls: U.S. Panel
April 20, 2018 - Skin cancers associated with decreased risk of developing AD
April 20, 2018 - Preserving fertility during chemotherapy
April 20, 2018 - Teva and Procter & Gamble Company terminate PGT Healthcare partnership
April 20, 2018 - People diagnosed with traumatic brain injury may have increased risk of Parkinson’s disease, shows study
April 20, 2018 - Researchers use smartphone to diagnose people infected with Loa loa worm
April 20, 2018 - College students with autism have high rate of suicidal thoughts
April 20, 2018 - Study sheds light on how the HSC niche is maintained
April 20, 2018 - Drug test spurs frank talk between hypertension patients and doctors
April 19, 2018 - Low-cost deworming drug improves female farmers’ physical fitness
April 19, 2018 - Genome editing identifies neural circuit behind leptin’s anti-obesity and anti-diabetes effects
April 19, 2018 - Many European countries lack comprehensive policy to eliminate viral hepatitis
April 19, 2018 - Young people with ADHD ‘more likely’ to come from deprived neighbourhoods
April 19, 2018 - SLU professor discovers new biomarkers for chlorine gas exposure
April 19, 2018 - Study proposes new mechanism that may contribute to gender differences in weight control
April 19, 2018 - Sleep restriction therapy does not interfere with insomnia patient’s driving ability, research shows
April 19, 2018 - Deep brain stimulation offers relief to UTHealth patient with treatment-resistant depression
April 19, 2018 - Study shows fatty fish and camelina oil boost HDL and IDL cholesterol
April 19, 2018 - FDA Alert: Euphoric Capsules by Epic Products: Recall
April 19, 2018 - Researchers identify peptide produced during cartilage deterioration as a potential source of osteoarthritis pain
April 19, 2018 - New breakthrough may allow scientists to orchestrate tissue regeneration in humans
April 19, 2018 - SYGNIS AG introduces new TruePrime apoptotic cell free DNA amplification kit
April 19, 2018 - Innovative device shows promise in capturing and releasing circulating tumor cells
April 19, 2018 - Researchers shed light on role of striosomal neurons in reinforcement learning
April 19, 2018 - Genetic make-up impacts long-term effectiveness of phobia treatment
April 19, 2018 - Novel biomarker can distinguish malignant lung nodules
April 19, 2018 - Study reports promising novel approach to treat therapy resistant pediatric brain tumors
April 19, 2018 - One-Hour Plasma Glucose Useful Predictor of Diabetic Retinopathy
April 19, 2018 - Hydroxychloroquine no more effective than placebo for relieving osteoarthritis hand pain
April 19, 2018 - Transplanted livers have a protective effect and reduce potential for organ rejection
April 19, 2018 - Researchers develop new method to study activity of inflammatory cells
April 19, 2018 - Researchers discover highly antibiotic resistant superbugs in Gulf States
April 19, 2018 - Smart-tooth technology shows promise in detecting certain diseases in high-risk patients
April 19, 2018 - Interaction between dioxin and HLA gene variant activates events associated with rheumatoid arthritis
April 19, 2018 - Eyes of adolescents could be associated with increased risk of cardiovascular disease in later life
April 19, 2018 - U.S. Women Less Likely Than Men to Get Statins After Heart Attack
April 19, 2018 - Health Canada grants cannabis cultivation license to High Park Farms
April 19, 2018 - Atypical brain development observed in preschoolers with ADHD symptoms
April 19, 2018 - SC Johnson releases annual Sustainability Report
April 19, 2018 - Positive attitudes about aging reduce risk of dementia in older adults
April 19, 2018 - Environmental pollutants found to worsen rheumatoid arthritis
April 19, 2018 - UT Southwestern scientists discover protein linked to metastatic breast cancer
April 19, 2018 - Study highlights need for further evidence to improve symptom management in end of life care
April 19, 2018 - Detecting diminished dopamine-firing cells inside brain could reveal earliest signs of Alzheimer’s
April 19, 2018 - Uniqsis offers high-power LED light unit for scalable flow photochemistry reactions
April 19, 2018 - Case study shows how intravascular ultrasound imaging helps detect acute aortic syndrome
April 19, 2018 - Research reveals new mechanism by which HIV evades the immune system
April 19, 2018 - Nanodisc-delivered cancer treatment helps eliminate tumors
April 19, 2018 - Functional connectivity MRI could help detect brain disorders and diseases
April 19, 2018 - Finding better way to quantify neuropathy symptoms and treatment efficacy
April 19, 2018 - Study examines effectiveness of caregiver education about sickle cell trait
April 19, 2018 - High-resolution images of tumor vasculature using new technology
April 19, 2018 - Lack of sleep may be linked to risk factor for Alzheimer’s disease
April 19, 2018 - Study finds neurotransmitter may play a role in alcohol relapse, addiction
April 19, 2018 - Researchers build molecular networks of calcific aortic valve disease
April 19, 2018 - Researchers develop highly specific apoptosis assay for pharmacodynamic analyses of tumor specimens
April 19, 2018 - Scientists decipher mechanism of chemotherapy induced female infertility
April 19, 2018 - New insight may allow researchers to design drugs that improve immune responses to vaccines
April 19, 2018 - FDA Approves Crysvita (burosumab-twza) for X-Linked Hypophosphatemia
April 19, 2018 - Researchers uncover origin of virus-fighting plasma B cells
April 19, 2018 - Study finds no evidence of lower intelligence in young children who had anesthesia
Scientists make important discovery about cell reprogramming

Scientists make important discovery about cell reprogramming

image_pdfDownload PDFimage_print

Researchers have made an important discovery about the cellular reprogramming process used in stem cell research for the development of regenerative medicines.

Credit: Sebastian Tomus​/Shutterstock.com

The study, which was conducted by Shinya Yamanaka (Gladstone Institutes, San Francisco) and colleagues, was recently published in the journal Cell Reports.

More than ten years ago, the team made a discovery that would revolutionize biomedical research and trigger the field of regenerative medicine; they found out how to reprogram human adult cells into induced pluripotent stem cells (iPSCs). Researchers could then use these patient-specific iPSCs to study diseases or even develop new tissues that can be used as therapies.

The researchers identified four genes, abbreviated as O, S, K and M, that enable adult cells to transform into iPSCs. They knew that the genes O, S and K helped the cells to become pluripotent and able to produce any other type of cell in the body. However, the role of gene M (short for MYC) was unclear.

The researchers found that MYC boosted the efficiency of the reprogramming process by 10%, but they did not know why.

Now, the team have found out that MYC helps cells to get around a roadblock that stops them from multiplying. If MYC is not added, the cells never overcome this obstacle and cannot successfully transform into iPSCs.

“We realized that MYC seems to help cells get around this roadblock, and that this needs to happen for adult cells to turn into iPSCs, but we still didn’t quite understand how MYC did that,” explained Takahashi.

“Interestingly, we were able to figure it out thanks to three discoveries that happened independently in the lab, while people were working on different things,” he added.

Following these discoveries, the team realised that the reprogramming process involves many genes and proteins that are key in cancer biology. They now think that the roadblock that prevents the cells from multiplying is also the one that tries to prevent cancer from spreading.

When cancer biologists add certain factors to a cell that should drive it toward cancer, the cell panics and, to protect itself, it stops multiplying. We think the same thing is happening here, because cells are reacting to reprogramming as if it were cancer. It’s not that they’re trying to block the cells from transforming into iPSCs, but they’ve simply never been exposed to this process before and don’t know how to react.”

Kazutoshi Takahashi, Gladstone Research Investigator

This study debunks certain theories about the role of MYC in cellular reprogramming and paves the way for further research in the field of regenerative medicine that will help to answer the next set of questions.

Source:

https://www.eurekalert.org/pub_releases/2018-04/gi-slh041018.php

Tagged with:

About author

Related Articles