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| Name | Class |
|---|---|
| University of California, San Diego | OTHER |
| Midwestern University | OTHER |
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The purpose of this study is to look at how bacteria present within the stool at the time of surgery and postoperatively may contribute to the development of cancer recurrence after surgery. By collecting stool and blood before and after surgery, the researchers hope to determine if certain types of bacteria, or products that the bacteria produce, promote the development of tumors after surgery. By collecting tumor tissue and growing cell lines, we hope this will help researchers better understand the behavior of these types of tumors.
The purpose of this study is to collect stool, blood, and tissue samples both before and after patients undergo surgery for colon cancer. These samples will be analyzed for their bacterial composition and function, and assayed for bacterial-derived metabolites. Additionally, these samples will be tested in the laboratory for their ability to promote tumor formation in cancer cells and in animal models of surgery. Finally, patients will undergo nutritional surveys to document their current nutritional intake. Integration of the patient's nutritional intake with the data from the analyzed biospecimens will allow the researchers to determine if these bacteria and/or their metabolites are more prevalent in patients who eat certain diets. Taken together, results from this study will provide knowledge as to the mechanisms by which tumors form after surgery and potentially allow for future therapies to prevent it.
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| Measure | Description | Time Frame |
|---|---|---|
| Collagenase Activity | Measure collagenase activity present within the stool at the time of surgery to determine if it will be significantly higher in patients who later develop recurrence compared to patients who do not. Assessing further if patients who are the most nutritionally at risk for the development of recurrence will have the highest amounts of bacterial collagenase. | From Enrollment to 12 months postoperative. |
| Measure | Description | Time Frame |
|---|---|---|
| Stool Metagenomics | Assess the correlation of the bacterial community with nutritional intake and the development of colorectal cancer recurrence. Bacterial community analysis will be performed via shotgun metagenomics. | From Enrollment to 12 months postoperative. |
| Stool metabolomics |
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Inclusion Criteria:
Exclusion Criteria:
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patients undergoing Colorectal Surgery
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Benjamin Shogan, MD | Contact | (773) 732-2260 | bshogan@bsd.uchicago.edu | |
| Teresa Barry | Contact | tbarry@bsd.uchicago.edu |
| Name | Affiliation | Role |
|---|---|---|
| Benjamin P Shogan | University of Chicago | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Chicago | Chicago | Illinois | 60637 | United States |
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| ID | Term |
|---|---|
| D003110 | Colonic Neoplasms |
| D015179 | Colorectal Neoplasms |
| ID | Term |
|---|---|
| D007414 | Intestinal Neoplasms |
| D005770 | Gastrointestinal Neoplasms |
| D004067 | Digestive System Neoplasms |
| D009371 | Neoplasms by Site |
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Blood samples will be collected prior to surgery, day of surgery, during hospitalization, 6 months after surgery, and 12 months after surgery. The prior to surgery sample, during surgery, and during hospitalization samples will be collected as part of routine lab draws.
Tissue Collection: A surgically resected malignant tumor tissue and adjacent normal tissue sample will be processed and created into organoids by the UChicago Organoid and Primary Culture Research Core (OPCR).
Stool collection: For the preoperative and postoperative samples stool will be self-collected with a specimen kit that is provided to each patient at study enrollment. The patient will use this kit to collect and send stool specimens overnight at 4 degrees Celsius to PI Shogan's laboratory. For the inpatient sample, the sample will be collected by the nurse and a member of the research team will bring to the Shogan Lab.
Assess the correlation of the bacterial derived metabolites with nutritional intake and the development of colorectal cancer recurrence. Bacterial community analysis will be performed via short chain fatty acid metabolomics. |
| From Enrollment to 12 months postoperative. |
| Serum Metabolomics | Assess the correlation of the bacterial derived metabolites with nutritional intake and the development of colorectal cancer recurrence. Bacterial community analysis will be performed via short chain fatty acid metabolomics. | From Enrollment to 12 months postoperative |
| D009369 | Neoplasms |
| D004066 | Digestive System Diseases |
| D005767 | Gastrointestinal Diseases |
| D003108 | Colonic Diseases |
| D007410 | Intestinal Diseases |
| D012002 | Rectal Diseases |