HOME >> BIOLOGY >> NEWS
Breast cancer is multi-step, multi-cell type process

COLUMBUS, Ohio -Researchers at The Ohio State University Comprehensive Cancer Center are offering one of the first models of breast cancer as a multi-step process which involves more than one cell type, thanks in part to new laser-microdissection technology which enables them to take apart tumors one cell at a time.

Scientists know cancer develops over a period of years through a series of genetic changes or mutations. Scientists have also long accepted that these genetic mutations occur in a single cell type for any given cancer. But the sequence of events-which "hits" happen first, and which specific cells are involved-has not been clearly documented until now.

Writing in the September 1 issue of Human Molecular Genetics, a research team, led by Dr. Charis Eng, director of the Clinical Cancer Genetics Program at Ohio State, says it has uncovered evidence suggesting that genetic changes leading to breast cancer occur first in the epithelium of breast tissue, and then are followed by corresponding alterations in the surrounding structures, or stroma.

"This is almost paradigm-breaking," says Eng. "In breast cancer, the alterations that lead to malignancy are thought to occur only in the epithelial cells of the breast. We have shown for the first time that genetic mutations can occur with some frequency in the stromal cells, too."

Utilizing laser capture microdissection, (LCM) investigators examined the tissue of 41 invasive breast cancers. In LCM technology, a laser beam only 7.5 microns in width - roughly one-tenth the size of a human hair -- acts as a "knife"- enabling researchers to isolate cancerous cells from normal cells, and to separate epithelial cells from stromal cells.

"Before LCM, the study of cancer genetics entailed grinding up a lump of tumor comprising a mixture of cells and examining the 'mixed bag' of cells for gene alterations," says Eng. "We really couldn't attribute genetic changes to any one cell type. LCM allo
'"/>

Contact: Michelle Gailiun
gailiun.1@osu.edu
614-293-3737
Ohio State University Medical Center
1-Sep-2001


Page: 1 2

Related biology news :

1. Breast cancer patients failed by treatment with taxol and taxotere respond to abraxane
2. Breastfeeding decreases infant mortality
3. Breast cancer study suggests role for tissue in carcinogenesis
4. Breast self examination increases womens concerns but has no effect on mortality
5. Breast cancer follow-ups no longer guess-work thanks to new physics research
6. Final media advisory for the 4th European Breast Cancer Conference (EBCC-4)
7. The 4th European Breast Cancer Conference (EBCC4)
8. Breast cancer susceptibility genes play role in DNA repair
9. Breast cancer can be reversed in laboratory mice, scientists report
10. NIH funds Breast Cancer and the Environmental Research Center at Fox Chase Cancer Center
11. Breast fluid a better option for detecting cancer

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Breast cancer multi step multi cell type process

(Date:8/28/2014)... traditional cigarettes, but still release toxins into the ... , Scientists studying secondhand smoke from e-cigarettes discovered ... particles, with close-to-zero exposure to organic carcinogens. However, ... second-hand e-cigarette smoke were found to be significantly ... of polycyclic aromatic hydrocarbons cancer-causing organic compounds ...
(Date:8/28/2014)... and his collaborators have developed an online analytic tool ... re-engineering cells for biomedical investigation. CellNet is a free-use ... stem cell engineering. Details of CellNet and its application ... papers in the journal Cell . , "This ... all types of cell-based investigations and can potentially offer ...
(Date:8/28/2014)... MD FASEB MARC (Maximizing Access to Research ... for the Genetics Society of America,s 27th Annual ... October 3, 2014 in Pacific Grove, California. ... of students, post doctorates and scientists from underrepresented ... community and to encourage the participation of young ...
Breaking Biology News(10 mins):Second-hand e-cig smoke compared to regular cigarette smoke 2New tool aids stem cell engineering for medical research 2
(Date:8/28/2014)... Exciting new work by a Florida State University ... that can take your temperature, emit white light, and ... the molecule looks like a butterfly. , Biwu Ma, ... Engineering in the FAMU-FSU College of Engineering, created the ... has continued to discover that his creation has many ...
(Date:8/28/2014)... 2014 PrimeSource Building Products, Inc., ... SoundConnect to support their communication needs ... and web conferencing platform GlobalMeet powered by SoundConnect. ... needs. SoundConnect delivers award winning “results driven” ... Products will be utilizing GlobalMeet powered by ...
(Date:8/27/2014)... 27, 2014 Green & Grow Inc. ... B funding and secured Otter Capital as a significant ... accelerate commercialization of GGI’s Agriplier™ technology, building on recent ... , “Since our first meeting, we have been impressed ... product space,” said Alan Sobba, President and CEO of ...
(Date:8/27/2014)... --  MSC , a healthcare performance improvement company advancing ... of Mary Beth Loesch to President and ... preparing companies for rapid growth and market expansion, Loesch ... Corporate Development and Healthcare. In that role, she oversaw ... as corporate strategy and marketing. Previously, Loesch served as ...
Breaking Biology Technology:Novel 'butterfly' molecule could build new sensors, photoenergy conversion devices 2PrimeSource Chooses SoundConnect as Collaboration Provider 2Green & Grow Inc. Secures $6M Series B Funding from Otter Capital 2Green & Grow Inc. Secures $6M Series B Funding from Otter Capital 3MSC names Mary Beth Loesch President and CEO 2
Cached News: