MedicineWorld.Org
Your gateway to the world of medicine
Home
News
Cancer News
About Us
Cancer
Health Professionals
Patients and public
Contact Us
Disclaimer

Medicineworld.org: Predicting Recurrence Of Prostate Cancer

Back to prostate cancer blog Blogs list Cancer blog  


Subscribe To Prostate Cancer Blog RSS Feed  RSS content feed What is RSS feed?

Predicting Recurrence Of Prostate Cancer

Predicting Recurrence Of Prostate Cancer
new prognostic test can help determine whether a prostate cancer patient will go on to have a recurrence of the disease, even if surrounding lymph nodes initially appear negative for cancer, as per a research studyby University of Southern California researchers.

The test, developed at USC, "appears to be a very powerful test and better than anything else we know of for predicting recurrence," says Richard Cote, professor of pathology and urology at the Keck School of Medicine of USC. Current trials are also using the test to find hidden metastases in lymph nodes and bone marrow for breast and lung cancers.

The study, "Detection of Occult Lymph Node Metastases in Patients with Local Advanced (pT3) Node-Negative Prostate Cancer" appears this week in the Journal of Clinical Oncology.

Prostate cancer is the most common non-skin cancer in America, as per the Prostate Cancer Foundation. One in six American men will be diagnosed with prostate cancer, making men 35 percent more likely to be diagnosed with prostate cancer than women are to be diagnosed with breast cancer.

"Thanks to greater awareness, as well as increased and improved screening, we see men increasingly diagnosed with prostate cancer in its early stages," Cote says. "Most of these patients will do very well and will not require therapy beyond surgery or radiation treatment to cure their disease."

But a proportion of these patients have metastases of the prostate cancer appear later, even when the lymph nodes removed at the time of the cancer surgery appeared negative for cancer, he says.

Cote and colleagues looked at 3,914 lymph nodes from 180 patients who were staged as having lymph nodes negative for cancer based on standardized histologic evaluation (visual scan under a microscope). The lymph nodes were then evaluated for occult (hidden) metastases using new specific immunohistochemistry tests that can detect cancer on a cell-by-cell level.

Their new analysis checks for cells that react with antibodies to cytokeratins and PSA. The team's testing found occult tumor cells in the lymph nodes of 24 of the patients whose lymph nodes had been previously been diagnosed as cancer-free.

The test used to detect the occult tumor cells is more sensitive than any clinical, pathologic or radiographic techniques, Cote says.

The group then compared cancer recurrence and survival in those patients with the hidden tumor cells versus those without the cells. The presence of occult tumor cells was associated with increased prostate cancer recurrence and decreased survival. In fact, "the outcome for patients with occult tumor cells was similar to those who were identified as having positive lymph nodes at the time of the surgery," Cote says.

"We have shown that occult tumor spread in lymph nodes is a significant predictor of disease recurrence," he says. "Once surgery is performed, the primary form of therapy is adjuvant systemic treatment. In patients with no evidence of metastasis, success of such treatment is assumed to be due to killing of occult tumor before it becomes clinically evident. Therefore, the ability to detect occult metastasis is pivotal to identification of patients who would most benefit from systemic treatment and also identify patients who may be spared from unnecessary treatment."



Posted by: Mark    Source




Did you know?
new prognostic test can help determine whether a prostate cancer patient will go on to have a recurrence of the disease, even if surrounding lymph nodes initially appear negative for cancer, as per a research studyby University of Southern California researchers. The test, developed at USC, "appears to be a very powerful test and better than anything else we know of for predicting recurrence," says Richard Cote, professor of pathology and urology at the Keck School of Medicine of USC. Current trials are also using the test to find hidden metastases in lymph nodes and bone marrow for breast and lung cancers.

Medicineworld.org: Predicting Recurrence Of Prostate Cancer

Main Page| Cancer blog| Cancer blogs list| Lung cancer blog| Colon cancer blog| Prostate cancer blog| Breast cancer blog| Diabetes watch blog| Heart watch blog| Allergy blog| Bladder cancer blog| Cervical cancer blog| Colon cancer news blog| Diabetes news blog| Esophageal cancer blog| Gastric cancer blog| Health news blog| Heart news blog| Infectious disease blog| Kidney watch blog| Lung disease blog| Lung cancer news blog| Mesothelioma blog| Neurology blog| Breast cancer news blog| OBGYN blog| Ophthalmology blog| Ovarian cancer blog| Cancer news blog| Pancreas cancer blog| Pediatrics blog| Prostate cancer news blog| Psychology blog| Research blog| Rheumatology blog| Society news blog| Uterine cancer blog| Weight watch blog|

Copyright statement
The contents of this web page are protected. Legal action may follow for reproduction of materials without permission.