PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Cancerous cells from donor kidney linked to recipient skin cancer

2013-08-27
(Press-News.org) Patients that receive kidney transplants have an increased risk of an invasive form of skin cancer. It is unclear if donor tissue contributes to cancer formation. In this issue of the Journal of Clinical Investigation, Philippe Ratajczak and colleagues at INSERM demonstrate that donor tissue can lead to caner formation in transplant recipients. They examined tumor cells and transplant tissues from a small sample of kidney transplant patients that had subsequently developed skin squamous cell carcinoma (SCC). In one patient they identified the presence of skin tumor cells that were the same genotype as the donated kidney and contained a mutation in a known cancer-causing gene. Furthermore, cells with this mutation were present in kidney biopsy samples taken at the time of transplant. As Cai-Bin Cui and David Gerber from the University of North Carolina discuss in their accompanying commentary, this case study has important implications for cancer research and clinical care of transplant recipients.### TITLE: Human skin carcinoma arising from kidney transplant–derived tumor cells AUTHOR CONTACT: Philippe Ratajczak
Inserm, Paris, , FRA
Phone: +33 1 42 38 54 28; E-mail: philippe.ratajczak@paris7.jussieu.fr View this article at: http://www.jci.org/articles/view/66721?key=6f8e69f0c56dc67b17ec ACCOMPANYING COMMENTARY TITLE: Donor-associated malignancy in kidney transplant patients AUTHOR CONTACT: David Gerber
UNC School of Medicine, Chapel Hill, NC, USA
Phone: 919-966-8008; Fax: 919-966-6308; E-mail: david_gerber@med.unc.edu View this article at: http://www.jci.org/articles/view/70438?key=7a4b5b9cbc0b295d0073 END


ELSE PRESS RELEASES FROM THIS DATE:

A strategy for combating drug-resistant cancers

2013-08-27
Many cancer therapies function by activating proteins like Caspase-3 (CASP3) that promote cell death. Several forms of cancer develop resistance to these drugs by down regulating CASP3 through an unknown mechanism. In the absence of CASP3, tumor cells produce another cell death promoting protein CASP7, but it is rendered inactive by the X-linked inhibitor of apoptosis protein (XIAP). In this issue of the Journal of Clinical Investigation, Po-Huang Liang and colleagues at Academia Sinica identify a compound (I-Lys) that disrupts the interaction between CASP7 and XIAP. Release ...

Protease inhibitor resistance involves multiple stages of the HIV-1 life cycle

2013-08-27
HIV-1 protease inhibitors are very effective antiviral drugs. These drugs target HIV-1 proteases, which are required for viral replication. Despite the success of protease inhibitors for suppressing HIV-1, some patients do not respond to protease inhibitor therapy. For most patients, the lack of response is not due to mutation of the HIV-1 protease. In this issue of the Journal of Clinical Investigation, Robert Silcano and colleagues at Johns Hopkins University identify the effects of protease inhibitors on different stages of viral replication. The authors found that protease ...

Origin of a hereditary east Texas bleeding disorder

2013-08-27
A severe hereditary bleeding disorder was described in a large family from east Texas in 2001. The affected family members routinely had bruising, nosebleeds, massive blood loss following injury or surgery, and often required blood transfusions. Routine tests for functional components of the blood coagulation pathway did not reveal any obvious defects. Genomic sequencing revealed a mutation in the gene encoding coagulation factor 5 (FV), but it was not considered to contribute to disease, since clotting assays were normal. In this issue of the Journal of Clinical Investigation, ...

Scientists prevent preterm birth caused by gene-environment interactions

2013-08-27
CINCINNATI – New research in the Journal of Clinical Investigation provides evidence that gene-environment interactions are a major contributor to preterm birth and that using a combinatory treatment strategy can prevent preterm delivery in a mouse model. In findings posted online Aug. 27, scientists from Cincinnati Children's Hospital Medical Center say their study provides important new insights into a major global health problem – one that remains stubbornly persistent in the United States. Preterm birth causes more than 1 million deaths a year and can leave premature ...

Study finds tumor suppressor may actually fuel aggressive leukemia

2013-08-27
CINCINNATI – New research in the Journal of Clinical Investigation suggests that blocking a protein normally credited with suppressing leukemia may be a promising therapeutic strategy for an aggressive form of the disease called acute myeloid leukemia (AML). Researchers from Cincinnati Children's Hospital Medical Center report their results in a study posted online Aug. 27 by the journal. The protein scientists targeted is a transcription factor known as RUNX1, which also plays an important role in helping regulate the normal development of blood cells. The researchers ...

Study identifies molecular process behind form of non-syndromic deafness

2013-08-27
CINCINNATI – Researchers identify an underlying molecular process that causes a genetic form of non-syndromic deafness in a new study that also suggests affected families may be at risk of damage to other organs. A multi-national research team led by scientists at Cincinnati Children's Hospital Medical Center report their findings in a study posted online Aug. 27 by the Journal of Clinical Investigation. The research opens the door to finding possible treatments for the condition (called DFNB49 non-syndromic hearing loss) and points to possible cellular damage in other ...

Personalized AF management needed to close mortality gap

2013-08-27
Amsterdam, The Netherlands – Tuesday 27 August 2013: Personalised management is the only way to close the mortality gap for patients with atrial fibrillation (AF), according to an ESC consensus paper presented at ESC Congress 2013 by Professor Paulus Kirchhof (UK). The Atrial Fibrillation competence NETwork (AFNET) and European Heart Rhythm Association (EHRA) consensus paper is published online in the European Journal of Pacing, Arrhythmias, and Cardiac Electrophysiology (EP-Europace)1 and presented during the ESC Congress session on personalised cardiology. Professor ...

A genetic treasure hunting in sorghum may benefit crop improvement

2013-08-27
August 27, 2013, Shenzhen, China - A consortium of researchers from The University of Queensland, the Queensland Department of Agriculture, Fisheries and Forestry (DAFF Qld) and BGI has discovered that sorghum, a drought-tolerant African crop, holds vastly more genetic variation than previously reported. This study published in Nature Communications today provides an invaluable resource for the genetic improvement of sorghum and other grass species. Sorghum is not only a food and feed cereal crop, but also can be used as the basis of biofuel. Its resistance to heat and ...

Novel approach to gene regulation can activate multiple genes simultaneously

2013-08-27
CAMBRIDGE, Mass. (August 27, 2013) – By creating a powerful new gene regulation system called CRISPR-on, Whitehead Institute researchers now have the ability to increase the expression of multiple genes simultaneously and precisely manipulate each gene's expression level. The system is effective in both mouse and human cells as well as in mouse embryos. "CRISPR-on is a tool that will be very useful for studying many biological processes, particularly for studying gene functions and gene networks," says Whitehead Founding Member Rudolf Jaenisch. "In contrast to RNA interference, ...

European hunter-gatherers owned pigs as early as 4600BC

2013-08-27
European hunter-gatherers acquired domesticated pigs from nearby farmers as early as 4600BC, according to new evidence. The international team of scientists, including researchers at Durham and Aberdeen universities, showed there was interaction between the hunter-gatherer and farming communities and a 'sharing' of animals and knowledge. The interaction between the two groups eventually led to the hunter-gatherers incorporating farming and breeding of livestock into their culture, say the scientists. The research, published in Nature Communications today (27 August), ...

LAST 30 PRESS RELEASES:

Study: Teens use cellphones for an hour a day at school

After more than two years of war, Palestinian children are hungry, denied education and “like the living dead”

The untold story of life with Prader-Willi syndrome - according to the siblings who live it

How the parasite that ‘gave up sex’ found more hosts – and why its victory won’t last

When is it time to jump? The boiling frog problem of AI use in physics education

Twitter data reveals partisan divide in understanding why pollen season's getting worse

AI is quick but risky for updating old software

Revolutionizing biosecurity: new multi-omics framework to transform invasive species management

From ancient herb to modern medicine: new review unveils the multi-targeted healing potential of Borago officinalis

Building a global scientific community: Biological Diversity Journal announces dual recruitment of Editorial Board and Youth Editorial Board members

Microbes that break down antibiotics help protect ecosystems under drug pollution

Smart biochar that remembers pollutants offers a new way to clean water and recycle biomass

Rice genes matter more than domestication in shaping plant microbiomes

Ticking time bomb: Some farmers report as many as 70 tick encounters over a 6-month period

Turning garden and crop waste into plastics

Scientists discover ‘platypus galaxies’ in the early universe

Seeing thyroid cancer in a new light: when AI meets label-free imaging in the operating room

Neutrophil-to-lymphocyte ratio may aid risk stratification in depressive disorder

2026 Seismological Society of America Annual Meeting

AI-powered ECG analysis offers promising path for early detection of chronic obstructive pulmonary disease, says Mount Sinai researchers

GIMM uncovers flaws in lab-grown heart cells and paves the way for improved treatments

Cracking the evolutionary code of sleep

Medications could help the aging brain cope with surgery, memory impairment

Back pain linked to worse sleep years later in men over 65, according to study

CDC urges ‘shared decision-making’ on some childhood vaccines; many unclear about what that means

New research finds that an ‘equal treatment’ approach to economic opportunity advertising can backfire

Researchers create shape-shifting, self-navigating microparticles

Science army mobilizes to map US soil microbiome

Researchers develop new tools to turn grain crops into biosensors

Do supervised consumption sites bring increased crime? Study suggests that’s a myth

[Press-News.org] Cancerous cells from donor kidney linked to recipient skin cancer