Bone Marrow-derived Cells' Contribution to Tumor Formation and Inflammation

August 3, 2009 updated by: Komagome Hospital

Bone Marrow-derived Cells' Contribution to Tumor Formation and Epithelial Cells Regeneration in the Gastrointestinal Tract

The purpose of this study is to clarify the relationship bone marrow-derived cells and the formation of the tumors, and the role of these cells in regeneration of epithelial cells in the gastrointestinal tract.

Study Overview

Status

Unknown

Detailed Description

Recent experimental studies showed that circulating bone marrow-derived stem cells contribute to the formation of cancers cells. However, it is not clear whether this is applicable to human beings or not. In addition, bone marrow-derived cells are considered to play a significant role in regeneration of inflamed epithelial cells of the gastrointestinal tract during graft versus host disease (GVHD), which sometimes occurs after bone marrow transplantation (BMT). On the other hand, it is well known that the incidence of solid tumors is significantly increased following bone marrow transplantation.

One purpose of this study is to determine the role of bone marrow-derived cells in the tumor formation and acute or chronic inflammation of the gastrointestinal tract in human beings, and the other is to discover early cancers of the gastrointestinal tract in the subjects received BMT by conducting surveillance for detecting second tumor, periodically.

All subjects are the patients received allogeneic BMT in Tokyo Metropolitan Komagome Hospital for hematopoietic disorders.

For determining the role of bone marrow-derived cells in the solid tumors and inflammation like GVHD, suitable candidates are females who received allogeneic BMT from male donors, because the most reliable marker of bone marrow-derived cells is identification of the Y chromosomes from the male donor in the tissue of female.

For the early detection of gastrointestinal cancers, the subjects are confined to patients without recurrence of original disorder at least 1 year after BMT. They are scheduled to undergo a medical inspection using gastrointestinal endoscopy, periodically.

When tumor or any other lesions are discovered, biopsy specimens are taken and proceed to pathological examination. According to the results, the patients will have proper treatments.

The tissue specimens from the tumors or inflammation in female recipients from male donors are processed for Y fluorescent in situ hybridization (FISH) analysis and immunocytochemistry using monoclonal antibodies such as cytokeratin, CD45 and so on.

Procedure

First of all, informed consent to this study should be gained from the subjects.

Study 1: to determine the role of bone marrow-derived cells on inflammation such as GVHD

  1. Subjects are female recipients from male donors.
  2. When they have some symptoms suggesting acute or chronic GVHD, gastrointestinal endoscopy is conducted and biopsy specimens are taken from the lesions for the definite diagnosis and identification of bone marrow-derived cells.
  3. Pathological investigation(Y-FISH etc.) is conducted using the tissue specimens.

Study 2: to conduct surveillance for second malignancy and to determine the role of bone marrow-derived cells on the formation of the tumor

  1. Subjects are confined to bone marrow recipients without the recurrence of the original disorder at least 1 year after BMT.
  2. A medical inspection for gastrointestinal tract is performed using periodical endoscopy.
  3. The tissue from tumors or any other lesions discovered are taken as biopsy specimen and processed for pathological examination. Regarding the female recipients from male donors, the same procedure as in the study 1 is taken for pathological study.

Study Type

Observational

Enrollment (Anticipated)

300

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

  • Name: Naoto Egawa, MD
  • Phone Number: 6158 +81-3-3823-2101
  • Email: naoto@cick.jp

Study Contact Backup

  • Name: Hisashi Sakamaki, MD
  • Phone Number: 6153 +81-3-3823-2101
  • Email: sakamaki@cick.jp

Study Locations

    • Bunkyo-ku
      • Tokyo, Bunkyo-ku, Japan, 113-8677
        • Recruiting
        • Cancer and Infection Disease Center, Komagome
        • Contact:
          • Naoto Egawa, MD
          • Phone Number: 6158 +81-3-3823-2101
          • Email: naoto@cick.jp
        • Contact:
          • Hisashi Sakamaki, MD
          • Phone Number: 6153 +81-3-3823-2101
          • Email: sakamaki@cick.jp
        • Principal Investigator:
          • Naoto Egawa, MD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

20 years to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

patients received bone marrow transplantation in Tokyo Metropolitan Komagome Hospital

Description

Inclusion Criteria:

  • After allogeneic bone marrow transplantation

Exclusion Criteria:

  • Contraindication for gastrointestinal endoscopy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Director: Naoto Egawa, MD

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

April 1, 2007

Study Completion (Anticipated)

March 1, 2017

Study Registration Dates

First Submitted

March 26, 2007

First Submitted That Met QC Criteria

March 26, 2007

First Posted (Estimate)

March 27, 2007

Study Record Updates

Last Update Posted (Estimate)

August 4, 2009

Last Update Submitted That Met QC Criteria

August 3, 2009

Last Verified

August 1, 2009

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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