DiaTech Test Predicts Most Effective ...

DiaTech Test Predicts Most Effective Chemotherapy for Cancer Patients

There are 1 comment on the Business Wire story from Jan 15, 2013, titled DiaTech Test Predicts Most Effective Chemotherapy for Cancer Patients. In it, Business Wire reports that:

The test identifies the most effective chemotherapy drug or drug combination to kill a patient's specific cancer cells.

Join the discussion below, or Read more at Business Wire.

Since: Dec 05

Reading, PA

#1 Jan 15, 2013
What is missing in the article is that DiaTech is NOT the only one on the market that can tell an oncologist the most effective chemotherapy treatment for the patient.

They have also claimed that they are the only commercial pathology reference laboratory in the U.S. that works exclusively with "live" cancer cells and the only one that has the expertise and technology to measure drug sensitivity of specific cancer cells.

Perhaps they are making this misleading claim because they are licensed as a pathology laboratory, while other laboratories have been pigeonholed as immunology laboratories by the FDA.

DiaTech Oncology uses the MiCK assay which is their "brand name" for a caspases assay (caspase-mediated apoptosis). It correlates precisely with the findings in the DISC, MTT and ATP assays.

Following the description of apoptosis in the British Journal of Cancer in 1972, scientists around the world incorporated the concept of programmed cell death into their cancer research. What is less understood is the fact that apoptosis is not synonymous with programmed cell death.

Programmed cell death is a fundamental feature of multicellular organism biology. Mutated cells incapable of performing their normal functions self-destruct in service of the multicellular organism as a whole.

While apoptosis represents an important mechanism of programmed cell death, it is only one of several cell death pathways.

Apoptotic cell death occurs with certain mutational events, DNA damage, oxidative stress and withdrawal of some growth factors particularly within the immune system.

Non-apoptotic programmed cell death includes: programmed necrosis, para-apoptosis, autophagic cell death, nutrient withdrawal, and subtypes associated with mis-folded protein response, and PARP mediated cell death.

While apoptotic cell death follows a recognized cascade of caspase mediated enzymatic events, non-apoptotic cell death occurs in the absence of caspase activation.

With the recognition of programmed cell death as a principal factor in carcinogenesis and cancer response to therapy, there has been a growing belief that the measurement of apoptosis alone will provide the insights needed in cancer biology. This oversimplification underestimates the complexity of cell biology and suggests that cancer cells have but one mechanisms of response to injury.

It has previously been shown that cancer cells that suffer lethal injury and initiate the process of apoptosis can be treated with caspase inhibitors to prevent caspase-mediated apoptosis. Of interest, these cells are not rescued from death. Instead, these cells committed to death, undergo a form of non-apoptotic programmed cell death more consistent with necrosis. Thus, commitment to death overrides mechanism of death.

Labs that focus on measurements of caspase activation can "only" measure apoptotic cell death. While apoptotic cell death is of importance in hematologic cancers and some solid tumors, it does not represent the mechanism of cell death in all tumors.

While caspase activation is of interest, comparably easy to measure and useful in many leukemias and lymphomas, it does not represent cancer cell death in all circumstances and can be an unreliable parameter in many solid tumors.

Laboratories that measure only one mechanism of cell death (e.g. caspase activation as a measure of apoptosis) miss important cell responses that are critical to the accurate prediction of clinical response.

Tell me when this thread is updated:

Subscribe Now Add to my Tracker

Add your comments below

Characters left: 4000

Please note by submitting this form you acknowledge that you have read the Terms of Service and the comment you are posting is in compliance with such terms. Be polite. Inappropriate posts may be removed by the moderator. Send us your feedback.

Cancer Discussions

Title Updated Last By Comments
News Alert to Women: What Your Doctor Prescribed for... (Apr '08) Nov 13 Docht99 5
News A look at the latest on breast cancer detection... Oct '17 MichaelLWagner 1
News Vault Arts Collective sets fundraiser for artis... Sep '17 bsrick 1
News 'I Thought My Dark Skin Protected Me From Melan... Sep '17 Paul 4
News "Code Blue" Equals Lower Survival for Cancer Pa... Aug '17 Bovenzi13 1
News VP Joe Biden Set for In-Depth Interview with NB... (Jun '16) Jul '17 Operator NumberTwo 4
News Senator McCain returning to Arizona for cancer ... Jul '17 Retribution 2
More from around the web