Sickle Cell Disease Biofluid Chip Technology (SCD BioChip)

Official title

Sickle Cell Disease (SCD) Biochip': Towards a Simple and Reliable Way to Monitor Sickle Cell Disease

Overview

'Sickle-shaped' anemia was first clinically described in the US in 1910, and the mutated heritable sickle hemoglobin molecule was identified in 1949. The pathophysiology of SCD is a consequence of abnormal polymerization of sickle hemoglobin (HbS) and its effects on red cell membrane properties, shape, and density, and subsequent critical changes in inflammatory cell and endothelial cell function. Our goal is to understand the impact of CMA abnormalities in SCD, by interrogating a number of recognized interactions in a range of clinical phenotypes. To date, correlative studies in SCD, by us and others, have range between clinical reports, based on tests, interventions, and chart review of individuals or groups of individuals and, at the other extreme, identification of functional gene polymorphisms based on population studies. The investigators wish to augment these studies through a systematic examination of cellular membrane properties and activation status. Of hematologic disorders, SCD may be unusually susceptible to such an examination.

Detailed description

Novel biofluidic chip technology can investigate surface characteristics that are typically measured with conventional techniques, such as fluorescent activated cell sorting (FACS), immunohistochemistry, or microscopic imaging methods. In FACS, cells of interest are isolated, extensively processed, incubated with a fluorescent-labeled antibody and sorted by optical recognition. In the proposed SCD biofluidic chip (SCD biochip), the interrogating antibody coats the microchannel surface and captures the cell population(s) of interest, without processing, incubation, or in vitro manipulation. The SCD biochip can also quantitate cellular adherence to experimental biological surfaces that are comprised of subcellular components. The SCD biochip is technically simple and experimentally flexible, whereby the population of interest is retained on the chip and quantitated in situ. The microchip system allows retrieval of viable isolated cells for potential downstream processing, analysis, and in vitro culture.

Interventions

• Other SCD Group
  No Intervention. Use of discard blood/tissue

Primary outcome measures

• Develop an SCD Biochip with which to examine key cellular properties and interactions, including RBC and WBC cellular, adhesive, and inflammatory properties, and circulating endothelial and hematopoietic precursor cell characteristics. [Time frame: 2 years]

Secondary outcome measures (1)

• Correlate SCD Biochip function in heterogeneous SCD populations, including HbSS and HbSC at a range of ages, and in those with acute and chronic complications and compared with normal controls. [Time frame: 2 years]

Eligibility criteria

Inclusion criteria

• Male or female ≥12 years of age at the time of consent (enrollment).
• Documentation Sickle Cell Disease, including HbSS or compound heterozygus HbSC- or HbSβ- thalassemia diagnosis as evidenced by one or more clinical features.
• Written informed consent (and assent when applicable) obtained from subject or subject's legal representative and ability for subject to comply with the requirements of the study.

Exclusion criteria

• Presence of a condition or abnormality that in the opinion of the Investigator would compromise the safety of the patient or the quality of the data.

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: Yes

Study design

Observational model

Case-control

Study locations

United States · 1 center

• University Hospitals Case Medical Center — Cleveland

Publications

• Herrick JB. Peculiar elongated and sickle-shaped red blood corpuscles in a case of severe anemia. 1910. Yale J Biol Med. 2001 May-Jun;74(3):179-84. No abstract available. PMID 11501714
• PAULING L, ITANO HA, et al. Sickle cell anemia, a molecular disease. Science. 1949 Apr 29;109(2835):443. No abstract available. PMID 18213804
• Powars DR, Chan LS, Hiti A, Ramicone E, Johnson C. Outcome of sickle cell anemia: a 4-decade observational study of 1056 patients. Medicine (Baltimore). 2005 Nov;84(6):363-376. doi: 10.1097/01.md.0000189089.45003.52. PMID 16267411
• Nouraie M, Lee JS, Zhang Y, Kanias T, Zhao X, Xiong Z, Oriss TB, Zeng Q, Kato GJ, Gibbs JS, Hildesheim ME, Sachdev V, Barst RJ, Machado RF, Hassell KL, Little JA, Schraufnagel DE, Krishnamurti L, Novelli E, Girgis RE, Morris CR, Rosenzweig EB, Badesch DB, Lanzkron S, Castro OL, Goldsmith JC, Gordeuk VR, Gladwin MT; Walk-PHASST Investigators and Patients. The relationship between the severity of he PMID 22983573
• Platt OS, Brambilla DJ, Rosse WF, Milner PF, Castro O, Steinberg MH, Klug PP. Mortality in sickle cell disease. Life expectancy and risk factors for early death. N Engl J Med. 1994 Jun 9;330(23):1639-44. doi: 10.1056/NEJM199406093302303. PMID 7993409
• Platt OS. Easing the suffering caused by sickle cell disease. N Engl J Med. 1994 Mar 17;330(11):783-4. doi: 10.1056/NEJM199403173301110. No abstract available. PMID 8107746
• Ohene-Frempong K, Weiner SJ, Sleeper LA, Miller ST, Embury S, Moohr JW, Wethers DL, Pegelow CH, Gill FM. Cerebrovascular accidents in sickle cell disease: rates and risk factors. Blood. 1998 Jan 1;91(1):288-94. PMID 9414296
• West MS, Wethers D, Smith J, Steinberg M. Laboratory profile of sickle cell disease: a cross-sectional analysis. The Cooperative Study of Sickle Cell Disease. J Clin Epidemiol. 1992 Aug;45(8):893-909. doi: 10.1016/0895-4356(92)90073-v. PMID 1624972

Identifiers

NCT: NCT02824471 · 05-14-07C

Primary sources (government registries)

• ClinicalTrials.gov (US NIH)

View this study on ClinicalTrials.gov ↗