Immune Cell Composition
Conditions
Keywords
albuterol, immune cells, immune cell composition
Brief summary
The aim of this pilot study is to determine the effects of albuterol on the composition of immune cells in the bloodstream for possible future use in patients with neuroblastoma.
Detailed description
Neuroblastoma is a cancer that typically affects the nerves of children. Sometimes the treatment required for neuroblastoma is an autologous stem cell transplant, where patients who are experiencing neuroblastoma will undergo an expansion of their blood system and collect their peripheral blood to later infuse back into them after chemotherapy and/or radiation. However, up to 14% of individuals experience complications with this procedure. Research has shown that certain drugs that cause similar effects on the body to that of acute exercise can elicit a more favorable donation. However, these drugs are very costly. Albuterol, on the other hand, is a regularly used drug that may have a similar effect on the body as adrenaline and is used to treat individuals who are experiencing respiratory airway distress. The benefit of albuterol is that it can be administered through inhalation, further reducing patient burden. The aim of this pilot study is to determine the effects of albuterol on the composition of immune cells in the bloodstream. Five healthy volunteers (age 21-44 years) will be recruited to participate in this study. Each participant will donate a 6ml blood sample before and during a 20-minute continuous albuterol nebulization through an IV catheter. During the last 10 minutes of the nebulization, participants will submit to another 6mL blood draw.
Interventions
DRUGAdministration of albuterol
Participants will inhale nebulized albuterol at a concentration of 2.5mg diluted in 3mL of normal saline for 20 minutes.
Sponsors
University of Arizona
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
BASIC_SCIENCE
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
21 Years to 44 Years
Healthy volunteers
Yes
Inclusion criteria
* Any gender * 21-44 years of age
Exclusion criteria
* Subjects must not: be younger than 21 or older than 44 years of age * Indicate a condition on the ACSM-AHA preexercise screening questionnaire indicating that physician approval is required prior to exercise * current user of tobacco products or have quit within the previous 6-months * body mass index of \>30 kg/m2, or waist girth of \>102cm for men and \>88cm for women * use over-the-counter medication known to affect the immune system (i.e. regular use of ibuprofen/aspirin, anti-histamines or beta-blockers) * have chronic/debilitating arthritis * have been bedridden in the past three months * have common illness (i.e. colds) within the past 6-weeks * have HIV * have hepatitis * have had a stroke * have major affective disorder * have any autoimmune disease * have central or peripheral nervous disorders * have blood vessel disease * have cardiovascular disease (CVD) * use of any prescription medication * pregnancy or are breast-feeding * asthma, emphysema, bronchitis, kidney disease; pheochromocytoma; diabetes; overactive thyroid * history of severe anaphylactic reaction to an allergen * or are scheduled to have surgery * Individuals who pass the
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Quantification of NK Cells (CD3-/CD56+). | One year | Investigators will collect a 6mL blood sample into EDTA anti-coagulant tubes before and during the last five minutes of an albuterol nebulization to assess the quantification in both absolute number and proportion of NK cells (CD3-/CD56+) using a MACSQuant flow cytometer and subsequent analysis on FlowLogic Software (v7.2.1). The last five minutes of nebulization of blood sample will be directly compared to the pre nebulization blood sample in the same participants in the same research arm. |
| Quantification of Gamma Delta T Cells (CD4-CD8-). | One year | Investigators will collect a 6mL blood sample into EDTA anti-coagulant tubes before and during the last five minutes of an albuterol nebulization to assess the quantification in both absolute number and proportion of Gamma Delta T cells (CD3+/CD4-/CD8-) using a MACSQuant flow cytometer and subsequent analysis on FlowLogic Software (v7.2.1). The last five minutes of nebulization of blood sample will be directly compared to the pre nebulization blood sample in the same participants in the same research arm. |
| Quantification of Gamma T cell subsets (CD3+/CD4/CD8). | One year | Investigators will collect a 6mL blood sample into EDTA anti-coagulant tubes before and during the last five minutes of an albuterol nebulization to assess the quantification in both absolute number and proportion of T-cell subsets (CD3+/CD4/CD8) using a MACSQuant flow cytometer and subsequent analysis on FlowLogic Software (v7.2.1). The last five minutes of nebulization of blood sample will be directly compared to the pre nebulization blood sample in the same participants in the same research arm. |
Countries
United States
Outcome results
None listed