Evaluation of Killing Activity of Expanded Natural Killer Cells From Blood in Patients With Pancreatic Cancer

Study Overview
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Brief Summary
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Pancreatic cancer, one of the deadliest epithelial malignancies, has a 5-year survival rate of only about 8%. The mortality rate has decreased slightly, but the incidence rate has been steadily increasing, and it is predicted to be the second leading cause of cancer mortality in 2030. Early diagnosis of pancreatic cancer and the development of innovative therapies are needed, and various basic and clinical studies based on pancreatic cancer biology are underway. Recently, studies on the effect of natural killer (NK) cells on cancer progression and the development of therapeutic agents using them have been actively conducted. NK cells are a component of innate lymphoid cells, accounting for approximately 5-15% of total peripheral blood mononuclear cells (PBMC).

Detailed Description
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Investigators will apply a new method to evaluate the activity of NK cells in pancreatic cancer patients, and to analyze the correlation with the progression of the tumor and the prognosis of the patient. And investigators will analyze the multifactorial factors affecting the activity of NK cells and conducted this study to help establish new diagnostic and therapeutic strategies for pancreatic cancer.

Official Title
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Ex Vivo Expansion of Natural Killer Cells From Blood in Patients With Pancreatic Cancer and the Evaluation of Killing Activity of Expanded Natural Killer Cells

Conditions
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Pancreatic Neoplasms

Intervention / Treatment
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* Diagnostic Test: Receptor specific activation method


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: The patient who is admitted to the pancreatic surgery department for the treatment of pancreas tumor Patients must have the ability to read, understand, and sign an informed consent and must be willing to comply with study treatment and follow-up. Life expectancy of at least 6 months based on discretion of treating Adequate hematologic function defined by the following laboratory parameters: Hemoglobin > 100, Platelet count > 100 and Absolute granulocyte count > 1.5. Exclusion Criteria: Patients who received preoperative chemotherapy or radiotherapy. Previous or concurrent malignancies. Any serious medical condition within 6 months prior to study entry such as myocardial infarction, uncontrolled congestive heart failure, unstable angina, serous infection.

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Conventional Activation method<br>NK cell was incubated with either K562 cells | Diagnostic Test: Receptor specific activation method<br>* NK cell was incubated with P815-ULBP1+CD48 cells that trigger NK cell synergy via NKG2D and 2B4<br>|
| Receptor specific activation method<br>NK cell was incubated with P815-ULBP1+CD48 cells that trigger NK cell synergy via NKG2D and 2B4 | Diagnostic Test: Receptor specific activation method<br>* NK cell was incubated with P815-ULBP1+CD48 cells that trigger NK cell synergy via NKG2D and 2B4<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| NK cell activity | In order to compare the activity of NK cells according to the activation method, NK cells obtained from the blood of participants will be analyzed. Investigates will use two methods to analysis the activity of NK cell by FACS (Fluorescence-activated cell sorting). The degree of expression of CD107a on the cell surface and the degree of IFN-γ secretion will be compared by FACS. | 1 month before operation | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Tumor recurrence | In order to analyze the correlation of NK cell activity with the prognosis of the participants, investigators will follow up the recurrence of the tumor. This will be analyzed with the activity of NK cell. | two year after tumor diagnosis | 
| Survival of participants | In order to analyze the correlation of NK cell activity with the prognosis of the participants, investigators will follow up the survival of the patients. This will be analyzed with the activity of NK cell. | two year after tumor diagnosis |