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

Researchers create cellular automation model to study complex tumor-host role in cancer

2012-03-27
(Press-News.org) Cancer remains a medical mystery – despite all of the research efforts devoted to understanding and controlling it. The most sought-after tumor model is one that would be able to formulate theoretical and computational tools to predict cancer progression and propose individual treatment strategies.

To better understand the role complex tumor-host interactions play in tumor growth, Princeton University researchers developed a cellular automation model for tumor growth in heterogeneous microenvironments. They then used this same model to investigate the effects of pressure on the growth of a solid tumor in a confined heterogeneous environment, such as a brain cancer growing in the cranium, and discovered that pressure accumulated during tumor growth can lead to a wide spectrum of growth dynamics and morphologies for both noninvasive and invasive tumors.

Depending on the magnitude of the pressure and the physical properties of the host environment, the types of tumor patterns that emerge range from strongly malignant tumors characterized by finger-like protrusions at the tumor surface to those in which fingering growth is diminished. These results should have important applications for cancer diagnosis, prognosis, and therapy.

###

Article: "Diversity of dynamics and morphologies of invasive solid tumors" is published in AIP Advances.

Authors: Yang Jiao (1) and Salvatore Torquato (1,2,3,4,5).

(1) Physical Science in Oncology Center, Princeton University, N.J.
(2) Department of Chemistry, Princeton University, N.J.
(3) Department of Physics, Princeton University, N.J.
(4) Princeton Center for Theoretical Science, Princeton University, N.J.
(5) Program in Applied and Computational Mathematics, Princeton University, N.J.

END



ELSE PRESS RELEASES FROM THIS DATE:

Photoacoustics technique detects small number of cancer cells

2012-03-27
Researchers have developed multiple techniques and procedures to detect cancer cells during the earliest stages of the disease or after treatment. But one of the major limitations of these technologies is their inability to detect the presence of only a few cancer cells. Now, a research collaboration between the University of Missouri-Columbia and Mexico's Universidad de Guanajuato shows that pulsed photoacoustic techniques, which combine the high optical contrast of optical tomography with the high resolution of ultrasound, can do just that, in vitro. Most cancer cells ...

Using game theory to understand the physics of cancer propagation

2012-03-27
In search of a different perspective on the physics of cancer, Princeton University and University of California, San Francisco researchers teamed up to use game theory to look for simplicity within the complexity of the dynamics of cooperator and cheater cells under metabolic stress conditions and high spatial heterogeneity. In the context of cancer, cooperator cells obey the general rules of communal survival, while cheater cells do not. The ultimate goal of this research was to gain an understanding of the dynamics of cancer tumor evolution under stress. Since cancer ...

Bald Head Design Announces Social Media Service for Dentist. Social Media Marketing Could Save Your Practice Up to 90% In Advertising Costs

2012-03-27
Bald Head Design, Ohio based web design firm is helping dentist improve their communication between patients and their practices through the creation of social media outlets - Facebook and Twitter. By offering a comprehensive social media strategy, which includes not only the creation of these social media tools, but by also providing training and resources providing for a successful social media marketing campaign. Social media allows patients to connect and engage with both the dentists and their staff. With over 500 million users, and growing, Facebook is becoming ...

Androgen suppression

2012-03-27
Androgen suppression – the inhibition of testosterone and other male hormones – is a routine therapy for prostate cancer. Unfortunately, it can dramatically reduce the quality of patients' sex lives and, more importantly, lead to cancer recurrence in a more deadly androgen-independent form. A new paper combining mathematical modeling with clinical data validates a different approach: cycling patients on and off treatment. Such intermittent androgen suppression alleviates most unwanted side effects and postpones the development of resistance to treatment. With the model, ...

Quantum effects and cancer

2012-03-27
The theory of quantum metabolism is the idea that quantum processes, such as entanglement, influence the metabolism of cells. This idea offers scientists a new explanation for the metabolic changes that cause healthy cells to transform into cancerous ones. The metamorphosis gives cancerous cells the ability to outcompete healthy cells for space and nutrients, causing the disease to spread. Understanding the quantum metabolic underpinnings of the transformation could potentially lead to new types of treatment to stop cancer growth, researchers argue. ### Article: "Implications ...

Some breast cancer tumors may be resistant to a common chemotherapy treatment

2012-03-27
Some breast cancer tumours may be resistant to a common chemotherapy treatment, suggests recent medical research at the University of Alberta. Principal investigator Ing Swie Goping and her team discovered some breast cancer tumours had low levels of certain genes, and that those tumours didn't respond well to taxane chemotherapy, a common treatment used in breast cancer. "These tumours didn't shrink and were resistant to a common chemotherapy treatment. These results give us a strong incentive to continue our research," she said. Goping and her team looked at tumour ...

Australia Post Delivers New Superstores and a Digital MailBox for All Australians

2012-03-27
In response to record numbers of Australians moving their lives online, Australia Post today announced a free Australia Post Digital MailBox for every Australian will be launched this year, in addition to opening 30 superstores across the country. "The Australia Post Digital MailBox will allow businesses, government entities and customers to communicate through a secure online portal that can be accessed 24 hours a day, 7 days a week, wherever they are," said Australia Post Chairman, David Mortimer. "Just as the traditional letterbox has been a vital ...

Elusive long-fingered frog found after 62 years

Elusive long-fingered frog found after 62 years
2012-03-27
SAN FRANCISCO -- Herpetologists from the California Academy of Sciences and University of Texas at El Paso discovered a single specimen of the Bururi long-fingered frog (Cardioglossa cyaneospila) during a research expedition to Burundi in December 2011. The frog was last seen by scientists in 1949 and was feared to be extinct after decades of turmoil in the tiny East African nation. For biologists studying the evolution and distribution of life in Africa, Burundi sits at an intriguing geographic crossroads since it borders the vast Congo River Basin, the Great Rift Valley, ...

Mexico Manufacturing Facility Start-Up Process is the Subject of Offshore Group Podcast

Mexico Manufacturing Facility Start-Up Process is the Subject of Offshore Group Podcast
2012-03-27
The Offshore Group recently recorded another podcast in its continuing series on Mexico business issues on the subject of Mexico manufacturing facility start-up under its Mexico Shelter Plan. Leonard Ottosen, project manager at The Offshore Group's La Angostura Industrial Park in Saltillo, Coahuila, describes how companies that are new to the country are guided from the beginning of the start-up process through to the point at which actual part production takes place under the Mexico Manufacturing Shelter Plan. The Offshore Group's sister company, Manufacturas Zapaliname, ...

35,000 gallons of prevention

35,000 gallons of prevention
2012-03-27
Twenty years ago in Chicago, a small leak in an unused freight tunnel expanded beneath the Windy City and started a flood which eventually gushed through the entire tunnel system. A quarter-million people were evacuated from the buildings above, nearly $2 billion in damages accrued, and it took 6 weeks to pump the tunnels dry. How much more costly – in lives and infrastructure – would a flood in a heavily used, underwater subway tunnel be today? In January 2012 the Department of Homeland Security's (DHS) Science and Technology Directorate (S&T) successfully tested ...

LAST 30 PRESS RELEASES:

Novel immunotherapy demonstrates early potential to overcome resistance to immune checkpoint therapy

LLM treatment advice agrees with physician recommendations in early-stage HCC, but falls short in late stage

Deep learning model trained with stage II colorectal cancer whole slide images identifies features associated with risk of recurrence – with higher success rate than clinical prognostic parameters

Aboard the International Space Station, viruses and bacteria show atypical interplay

Therapies that target specific type of cell death may be an effective avenue for cancer treatment, UTHealth Houston researchers find

CHEST releases guideline on biologic management in severe asthma

Scientists create a system for tracking underwater blackouts

Fruit fly pigmentation guides discovery of genes that control brain dopamine and sleep

World's largest physics conference to be held in Denver and online this March

New mega-analysis reveals why memory declines with age

Understanding ammonia energy’s tradeoffs around the world

UTHealth Houston researchers map gene disruptions in sporadic early onset Alzheimer’s disease across key brain regions

Minimum wage increases are linked to safer pregnancies

Left in the cold: Study finds most renters shut out of energy-saving upgrades

This crystal sings back: Illinois collaboration sheds light on magnetochiral instability

Organisms in the Atacama Desert soil are remarkably diverse

Children’s Hospital Colorado research outlines first pediatric classifications for suicide risk in adolescents and kids

No thyme wasted: Harnessing the medicinal benefits of thyme extract With small doses

Fat surrounding the colon interacts with the immune system

Genetic predisposition to excess body weight and survival in women diagnosed with breast cancer

New mechanism links Epstein-Barr virus to MS

Genetic risk factor and viral infection jointly contribute to MS

When a virus releases the immune brake: New evidence on the onset of multiple sclerosis

Wyss Institute-led collaboration awarded by ARPA-H PRINT program to engineer off-the-shelf, universal, transplant-ready graft for liver failure

Research on the behavioral mechanisms of rural distributed photovoltaic development: A view of prosumer perspective

More surgical patients are on opioid use disorder medications — hospitals must modernize pain care

New study reveals strategic logic behind global patent litigation venue selection

An abnormally slow heart rate is associated with xylazine-fentanyl overdose; primarily seen in northeastern United States

The path to solar weather forecasts

Inflammation and mitochondrial dysfunction in cirrhotic cardiomyopathy: therapeutic implications

[Press-News.org] Researchers create cellular automation model to study complex tumor-host role in cancer