Could Gut Microbes Affect Pancreatic Cancer Survival?

2023-04-04
免疫疗法微生物疗法
WEDNESDAY, April 5, 2023 -- Bacteria in the gut microbiome may be the key to why some patients survive pancreatic cancer long-term, despite its notoriously low survival rate.
Only about 9% of pancreatic cancer patients survive past five years.
Looking at the microbiomes of long-term pancreatic cancer survivors, a new study found several enriched bacterial species associated with enhanced tumor immune response. The term microbiome is used for a collection of microbes, or bacteria, that live on or in the human body.
“There is emerging science suggesting that pancreas cancer survivors have a robust immune response in their tumors and data suggests the gut microbiome can influence immune response,” said co-author Dr. Jordan Kharofa, a University of Cincinnati Cancer Center physician-researcher.
“We wondered if there was a relationship with the gut microbiome in pancreatic cancer survivors,” Kharofa said in a university news release. He is also an associate professor in the UC College of Medicine’s Department of Radiation Oncology.
The researchers analyzed microbiome data from pancreatic cancer survivors and a control group of pancreatic cancer patients. The team found long-term survivors’ microbiomes had increased levels of several specific bacterial species, including Faecalibacterium prausnitzii.
“Little information exists to help us understand why some patients are cured from pancreatic cancer and unfortunately most are not,” Kharofa said. “These species may help to promote immune response to pancreas cancer but this has not yet been proven.”
The species have previously been associated with improved response to immunotherapy for patients with advanced melanoma, the most severe form of skin cancer, the authors noted.
“There is a growing understanding that the microbiome is a part of the normal immune response. The importance of the microbiome in response to immunotherapy drugs in melanoma and other cancer types is well-established,” Kharofa said.
“For the first time, we are seeing that similar species are enriched in patients cured from pancreas cancer," he said. "We’re excited to explore this further and to evaluate if modulating the microbiome can be a therapeutic avenue in these patients."
These bacterial species have not been linked to any specific diet, lifestyle or genetic makeup that would give insight on how to naturally elevate their levels in the microbiome, Kharofa said.
Study findings were published recently in the journal Cancer.
Sources
University of Cincinnati, news release, April 3, 2023
Posted April 2023
更多内容,请访问原始网站
文中所述内容并不反映新药情报库及其所属公司任何意见及观点,如有版权侵扰或错误之处,请及时联系我们,我们会在24小时内配合处理。
靶点
-
药物
-
立即开始免费试用!
智慧芽新药情报库是智慧芽专为生命科学人士构建的基于AI的创新药情报平台,助您全方位提升您的研发与决策效率。
立即开始数据试用!
智慧芽新药库数据也通过智慧芽数据服务平台,以API或者数据包形式对外开放,助您更加充分利用智慧芽新药情报信息。