Updated April 2009
STATEMENT: EMAIL HOAX REGARDING CANCER
Information falsely attributed to Johns Hopkins called, "CANCER UPDATE FROM JOHN HOPKINS" describes properties of cancer cells and suggests ways of preventing cancer. Johns Hopkins did not publish the information, which often is an email attachment, nor do we endorse its contents. The email also contains an incorrect spelling of our institution as "John" Hopkins; whereas, the correct spelling is "Johns" Hopkins. For more information about cancer, please read the information on our web site or visit the National Cancer Institute's web site at www.cancer.gov. Please help combat the spread of this hoax by letting others know of this statement.
Another hoax email that has been circulating since 2004 regarding plastic containers, bottles, wrap claiming that heat releases dioxins which cause cancer also was not published by Johns Hopkins. More information from the Johns Hopkins Bloomberg School of Public Health.
Mythbusters: Please help curb the spread of this hoax by sending a link to this page to individuals that forward you this email.
The Truth about the "Cancer Update" Email
It has become such a problem, that the National Cancer Institute, American Cancer Society, and individual cancer centers like the Johns Hopkins Kimmel Cancer Center have posted warnings on their Web sites. Emails offering easy remedies for avoiding and curing cancer are the latest Web-influenced trend. To gain credibility, the anonymous authors falsely attribute their work to respected research institutions like Johns Hopkins. This is the case with the so-called “Cancer Update from Johns Hopkins.”
The gist of this viral email is that cancer therapies of surgery, chemotherapy, and radiation therapy do not work against the disease and people should instead choose a variety of dietary strategies.
Traditional therapies, such as surgery, chemotherapy, and radiation therapy, work. The evidence is the millions of cancer survivors in the United States today who are alive because of these therapies. We recognize that treatments don’t work in every patient, or sometimes work for awhile and then stop working, and there are some cancers that are more difficult to cure than others. These problems are the focus of ongoing cancer research.
We’ll go through each statement in the email hoax and provide real responses from Johns Hopkins Kimmel Cancer Center experts.
Email hoax contentions #1 and 2: Everyone Has Cancer Cells
Cancer is a genetic disease resulting from a variety of mutations and alterations either inherited from our parents or, more commonly, acquired over time due to environmental exposures and behaviors, such as smoking and poor diet. These alterations turn off important cell growth regulators allowing cells to continually divide unchecked, explains Luis Diaz, a clinician-scientist in Ludwig Center for Cancer Genetics. This type of cell is called a malignant or cancer cell. Among the trillions of cells in the human body, inevitably everyone has some abnormal or atypical cells that possess some of the characteristics of cancer cells, most resolve themselves and never result in cancer, says Diaz.
There is no single or standard test for cancer. There are ways to screen for certain cancers with tests such as colonoscopy for colon cancer, mammography for breast cancer, PSA for prostate cancer, and the Pap smear for cervical cancer, and these tests can detect cancers in a very early and curable stage. For many cancers, there currently are no screening tests, and they are diagnosed when they begin to cause symptoms.
Diaz and other Kimmel Cancer Center researchers are working on new tests that detect abnormal DNA shed by cancer cells into blood and body fluids and have the ability to find cancers before they cause any symptoms. Approaches like this could lead to a broad-based screening test for cancer.
Tests like these also are being used to detect cancer recurrences and malignant cells left behind following surgery, and can find cancers that are not detectable under the microscope or in x-rays.
Other researchers are studying cancer stem cells. They are stealth cells that make up just a tiny fraction of a tumor. While small in number, investigators believe they may be the cells that drive certain cancers and lead to cancer recurrence. Therapies that target these cells are now being tested in clinical trials.
A team of our breast cancer researchers has developed a method that could make it possible to detect breast cancer from the DNA contained in a single drop of blood.
But, while evasive cancer cells are a challenge and the focus of ongoing research, it does not mean, as the email contends, that all patients, even those treated successfully for cancer, have cancers-in-waiting—undetectable but still there. People are treated and completely cured of cancer everyday.
Email hoax contention #3: A Strong Immune System Destroys Cancer
When it comes to cancer and the immune system, it is not a matter of strong or weak as the fictional report contends, but rather an issue of recognition. The immune system simply does not recognize cancer. In its complexity, the cancer cell has learned to disguise itself to the immune system as a normal cell. Infected cells send out danger signals setting the immune system in action. Cancer cells do not, explains Elizabeth Jaffee, co-director of cancer immunology and leading expert on cancer and the immune system. By deciphering the methods cancer cells use to make them invisible to the immune system, Jaffee and team have developed cancer vaccines that have successfully triggered immune reactions against prostate cancer, pancreatic cancer, leukemia, and multiple myeloma.
Email hoax contention #4 and #5: Cancer is caused by Nutritional Deficiencies and Supplements Will Correct Them
Dietary habits and lifestyle choices, such as smoking, contribute to the development of many human cancers, says Kimmel Cancer Center director
|