|
Oncolyn


American Institute for Cancer
Research
9TH ANNUAL RESEARCH CONFERENCEWashington D.C. U.S.A.
1999 SFRR Europe Winter Meeting
BIO-FLAVONOIDS & POLYPHENOLS IN HEALTH & DISEASE
American Institute for Cancer Research
9TH ANNUAL RESEARCH CONFERENCE
Nutrition and Cancer Prevention:
Oncolyn Causes Regression of Breast Carcinoma and Other Solid
Tumors in Mouse and Man.
Plants are considered a valuable resource for the discovery and
development of novel, naturally derived agents to treat cancer.
To date, six plant-derived anticancer drugs have received FDA
approval for commercial production (Taxol, vinblastine,
vincristine, topotecan, etoposide, and teniposide) with others
being evaluated in clinical trials worldwide, such as
camptothecin. Oncolyn, a formulated combination of extracts from
three edible plants, was evaluated by itself, or in combination
with cytoxan/adriamycin/cysplatin, 5_FU and methotrexate, for
anticancer activity in a mouse subrenal capsule assay and
subsequent clinical application for various tumors.
The mouse subrenal capsule assay technicque is a well accepted
model in which potential antitumor agents are tested for
efficacy in inhibiting growth of human tumor xenografts. The
subrenal capsule assay has been used to determine anti-cancer
activity of various agents against one or more human tumors
including renal cell carcinoma, colorectal cancer, breast
cancer, liver cancer, choriocarcinoma, ovarian adenocarcinoma,
lung cancer, esophageal cancer, prostate carcinoma, and urinary
bladder carcinoma. The use of the subrenal capsule human tumor
xenograft assay has also been validated as a model that can
accurately evaluate chemotherapeutic agents for clinical
efficacy with concordance rate ranges from 77 - 90%.
The mouse subrenal capsule assay with human tumor xenografts was
performed with surgically removed tumor tissues, according to
the technique of Bogden and Griffin. Small tumor explant
fragment circa 1mm3 size was implanted below the transparent
mouse renal capsule. After abdominal wall closure, mice (105 for
each experiment) were observed for the effect of Oncolyn and
standard chemotherapeutic agents. On day 5, tumor fragment size,
vascularity and tumor cellular changes were recorded. Oncolyn
causes reduction of tumor size, inhibited vascularity on the
surface and in the periphery of implanted tumor fragment and
other morphological changes such as karyopyknosis and
karyorrhexis consistent with apoptosis.
In summary, Oncolyn alone or in combination with other
chemotherapeutic agents synergistically inhibited the growth of
implanted human breast carcinoma, squamous cell carcinoma of the
lung and adenocarcinoma of the recum in mouse.
Results of clinical application of Oncolyn for chemoprevention
and therapy for patients with breast carcinoma, prostate
carcinoma, colon carcinoma, lung carcinoma, breast intraductal
papilloma, melanoma, and lymphoma will be on display. Oncolyn
showed no known side effects.
OncolynŽ Laboratory Data
OncolynŽ Clinical Data
OncolynŽ Mode of Action
|