Monocytic Expression of Heme Oxidase-1 (HO-1) in Sickle Cell Patients and Correlation With the Humoral Immune Response to Vaccine and With Allo-immunization.

Sickle Cell Disease Clinical Trial

Official title:

Monocytic Expression of Heme Oxidase-1 (HO-1) in Sickle Cell Patients and Correlation With the Humoral Immune Response to Vaccine and With Allo-immunization

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03111589
• Other study ID #: CHUB-HO1 sickle cell
• Status: Completed
• Phase: N/A
• Start date: October 2016
• Est. completion date: October 2018

Study information

• Verified date: October 2018
• Source: Brugmann University Hospital
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Sickle cell disease (SCD) is an autosomal recessive disorder resulting from a substitution in the β chain of hemoglobin (Hb) which causes hemoglobin S to polymerize when deoxygenated. SCD patients present immune abnormalities that have always been attributed to functional asplenia. It it is now being recognized that patients with SCD have a pro-inflammatory condition with altered immune system activation contributing to the pathology of SCD. Increased levels of neutrophils, monocytes or cytokines have been reported in SCD patients.

SCD is associated with many acute and chronic complications requiring immediate support. Actual strongly recommended therapies include chronic blood transfusions (CT) and hydroxyurea (HU). In addition, episodic transfusions are recommended and commonly used to manage many acute SCD complications.There is strong evidence to support the use of HU in adults with 3 or more severe vaso-occlusive crises during any 12-month period, with SCD pain or chronic anemia, or with severe or recurrent episodes of acute chest syndrome. HU use is now also common in children with SCD. Some patients receive chronic monthly RBC transfusion with the objective to reduce the proportion of HbS to < 30 %. Long-term RBC transfusions prevent and treat complications of SCD decreasing the risk of stroke and the incidence of acute chest syndrome (ACS).

Therapeutic complications, such as alloimmunization against RBC in 20-50% of patients or hematopoietic stem cell transplantation (HSCT) graft rejection, constitute an immune-based clinical issue in SCD. Poorly understood RBC alloimmunization is responsible for serious hemolytic transfusion reaction associated with severe mortality and morbidity underlying the need for a better understanding of the immunology of SCD to improve SCD transfusion support/outcome. Little evidence exists about HU effects on immune functions in SCD. HU treatment doesn't appear to have deleterious effects on immune function and appears to decrease the abnormally elevated number of total WBC and lymphocytes, while CT does not.

Patients with SCD are at higher risk of infections and prophylactic vaccination is strongly recommended. Recent data suggest that vaccinal response to pneumococcal antigens in SCD patients is identical to healthy control while controversy concern the stability of the immune protection after vaccination of SCD patient. Antibody levels declined over the year and the need for more frequent vaccination in SCD patient should be investigated. Currently, there is no evidence whether HU may interfere with pneumococcal immune response. Purohit showed that immune response to inactivated influenza A (H1N1) virus vaccine was altered in patient with SCD receiving CT but little is known on immune response to vaccination in patients with SCD receiving HU.

Recent data suggest that not only inflammatory status but also humoral immune response to antigens in SCD patients may differ according to treatment. Yazdanbakhsh reported an imbalance between regulatory T cell (Treg) and effector T cell (Teff) in alloimmunized SCD patients with as consequence an increase in antibody production. In a model proposed by the authors, the balance between Treg and Teff is dictated by the monocyte control of cytokines expression. Altered activity of monocyte heme oxidase-1 (HO-1) would be responsible of a decrease in IL-12 and an increase in IL-10 cytokines secretion impacting the Treg/Teff cells ratio and promoting antibody production by B cells.

The objectives of the project are to assess whether different humoral immune responses to vaccines or to erythrocyte alloantigens are related to the type of treatment administered to patients with SCD. We also aim to study if these differences might be related to different expressions of HO-1 by monocytes.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 102
• Est. completion date: October 2018
• Est. primary completion date: October 2018
• Accepts healthy volunteers: No
• Gender: All
• Age group: N/A and older

Eligibility

Inclusion Criteria:

• Pediatric and adult patients with sickle cell disease from the HUDERF and CHU-Brugmann Hospital

Exclusion Criteria:

Related Conditions & MeSH terms

• Anemia, Sickle Cell
• Sickle Cell Disease

Intervention

Biological:
• Inactivated influenza A (H1N1) virus vaccine
All groups of patients and the control group will receive the new annually recommended inactivated influenza A (H1N1) virus vaccine.

Diagnostic Test:
• Blood sampling
Testing of the different humoral immune responses to vaccines or to erythrocyte alloantigens.

Locations

Country	Name	City	State
Belgium	CHU Brugmann	Brussels
Belgium	HUDERF	Brussels

Sponsors (1)

Lead Sponsor	Collaborator
Francis Corazza

Country where clinical trial is conducted

Belgium, 

References & Publications (13)

Chintagari NR, Nguyen J, Belcher JD, Vercellotti GM, Alayash AI. Haptoglobin attenuates hemoglobin-induced heme oxygenase-1 in renal proximal tubule cells and kidneys of a mouse model of sickle cell disease. Blood Cells Mol Dis. 2015 Mar;54(3):302-6. doi: 10.1016/j.bcmd.2014.12.001. Epub 2014 Dec 22. — View Citation

Cunnington AJ, Njie M, Correa S, Takem EN, Riley EM, Walther M. Prolonged neutrophil dysfunction after Plasmodium falciparum malaria is related to hemolysis and heme oxygenase-1 induction. J Immunol. 2012 Dec 1;189(11):5336-46. doi: 10.4049/jimmunol.1201028. Epub 2012 Oct 24. — View Citation

De Montalembert M, Abboud MR, Fiquet A, Inati A, Lebensburger JD, Kaddah N, Mokhtar G, Piga A, Halasa N, Inusa B, Rees DC, Heath PT, Telfer P, Driscoll C, Al Hajjar S, Tozzi A, Jiang Q, Emini EA, Gruber WC, Gurtman A, Scott DA. 13-valent pneumococcal conjugate vaccine (PCV13) is immunogenic and safe in children 6-17 years of age with sickle cell disease previously vaccinated with 23-valent pneumococcal polysaccharide vaccine (PPSV23): Results of a phase 3 study. Pediatr Blood Cancer. 2015 Aug;62(8):1427-36. doi: 10.1002/pbc.25502. Epub 2015 Mar 23. — View Citation

Estcourt LJ, Fortin PM, Hopewell S, Trivella M, Wang WC. Blood transfusion for preventing primary and secondary stroke in people with sickle cell disease. Cochrane Database Syst Rev. 2017 Jan 17;1:CD003146. doi: 10.1002/14651858.CD003146.pub3. Review. — View Citation

Hankins J, Jeng M, Harris S, Li CS, Liu T, Wang W. Chronic transfusion therapy for children with sickle cell disease and recurrent acute chest syndrome. J Pediatr Hematol Oncol. 2005 Mar;27(3):158-61. — View Citation

Lanaro C, Franco-Penteado CF, Albuqueque DM, Saad ST, Conran N, Costa FF. Altered levels of cytokines and inflammatory mediators in plasma and leukocytes of sickle cell anemia patients and effects of hydroxyurea therapy. J Leukoc Biol. 2009 Feb;85(2):235-42. doi: 10.1189/jlb.0708445. Epub 2008 Nov 12. — View Citation

Lederman HM, Connolly MA, Kalpatthi R, Ware RE, Wang WC, Luchtman-Jones L, Waclawiw M, Goldsmith JC, Swift A, Casella JF; BABY HUG Investigators. Immunologic effects of hydroxyurea in sickle cell anemia. Pediatrics. 2014 Oct;134(4):686-95. doi: 10.1542/peds.2014-0571. Epub 2014 Sep 1. — View Citation

Mohri T, Ogura H, Koh T, Fujita K, Sumi Y, Yoshiya K, Matsushima A, Hosotsubo H, Kuwagata Y, Tanaka H, Shimazu T, Sugimoto H. Enhanced expression of intracellular heme oxygenase-1 in deactivated monocytes from patients with severe systemic inflammatory response syndrome. J Trauma. 2006 Sep;61(3):616-23; discussion 623. — View Citation

Nickel RS, Osunkwo I, Garrett A, Robertson J, Archer DR, Promislow DE, Horan JT, Hendrickson JE, Kean LS. Immune parameter analysis of children with sickle cell disease on hydroxycarbamide or chronic transfusion therapy. Br J Haematol. 2015 May;169(4):574-83. doi: 10.1111/bjh.13326. Epub 2015 Mar 5. — View Citation

Pathare A, Al Kindi S, Alnaqdy AA, Daar S, Knox-Macaulay H, Dennison D. Cytokine profile of sickle cell disease in Oman. Am J Hematol. 2004 Dec;77(4):323-8. — View Citation

Purohit S, Alvarez O, O'Brien R, Andreansky S. Durable immune response to inactivated H1N1 vaccine is less likely in children with sickle cell anemia receiving chronic transfusions. Pediatr Blood Cancer. 2012 Dec 15;59(7):1280-3. doi: 10.1002/pbc.24206. Epub 2012 May 24. — View Citation

Yawn BP, Buchanan GR, Afenyi-Annan AN, Ballas SK, Hassell KL, James AH, Jordan L, Lanzkron SM, Lottenberg R, Savage WJ, Tanabe PJ, Ware RE, Murad MH, Goldsmith JC, Ortiz E, Fulwood R, Horton A, John-Sowah J. Management of sickle cell disease: summary of the 2014 evidence-based report by expert panel members. JAMA. 2014 Sep 10;312(10):1033-48. doi: 10.1001/jama.2014.10517. Review. Erratum in: JAMA. 2014 Nov 12;312(18):1932. JAMA. 2015 Feb 17;313(7):729. — View Citation

Yazdanbakhsh K. Mechanisms of sickle cell alloimmunization. Transfus Clin Biol. 2015 Aug;22(3):178-81. doi: 10.1016/j.tracli.2015.05.005. Epub 2015 Jun 6. Review. — View Citation

* Note: There are 13 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Intracellular HO-1 expression in monocytes	Intracellular monocyte heme oxidase-1 (HO-1) expression will be measured by flow cytometry.The protein expression of HO-1 will be confirmed by Western blot. A commercial ELISA kit will be used in parallel to assess HO-1 levels in PBMC cell lysate.	1 month post vaccination
Primary	HO-1 level in serum	Monocyte heme oxidase-1 (HO-1) level in serum will be measured by a commercial ELISA kit	1 month post vaccination
Primary	Cytokines levels measurement	Pro-inflammatory cytokine (IL-12) and anti-inflammatory cytokine (IL-10) levels will be evaluated in serum and in IL-1 stimulated whole blood supernatants using an ELISA assay.	1 month post vaccination
Primary	Identification of T regulatory cells	Evaluation of Treg cells in peripheral blood mononuclear cells (PBMC) will be performed by flow cytometry using appropriate fluorochrome conjugated monoclonal antibodies for CD25 and FoxP3 markers	1 month post vaccination
Primary	Immune response to vaccination	Post-vaccination serum H1N1 antibodies titers (IgG and IgM) will be measured by an ELISA kit	1 month post vaccination
Secondary	Intracellular HO-1 expression in monocytes	Intracellular HO-1 expression will be measured by flow cytometry.The protein expression of HO-1 will be confirmed by Western blot. A commercial ELISA kit will be used in parallel to assess HO-1 levels in PBMC cell lysate.	Baseline: at vaccination
Secondary	Intracellular HO-1 expression in monocytes	Intracellular HO-1 expression will be measured by flow cytometry.The protein expression of HO-1 will be confirmed by Western blot. A commercial ELISA kit will be used in parallel to assess HO-1 levels in PBMC cell lysate.	3 months post vaccination
Secondary	Intracellular HO-1 expression in monocytes	Intracellular HO-1 expression will be measured by flow cytometry.The protein expression of HO-1 will be confirmed by Western blot. A commercial ELISA kit will be used in parallel to assess HO-1 levels in PBMC cell lysate.	6 months post vaccination
Secondary	HO-1 level in serum	HO-1 level in serum will be measured by a commercial ELISA kit	Baseline: at vaccination
Secondary	HO-1 level in serum	HO-1 level in serum will be measured by a commercial ELISA kit	3 months post vaccination
Secondary	HO-1 level in serum	HO-1 level in serum will be measured by a commercial ELISA kit	6 months post vaccination
Secondary	Cytokines levels measurement	Pro-inflammatory cytokine (IL-12) and anti-inflammatory cytokine (IL-10) levels will be evaluated in serum and in IL-1 stimulated whole blood supernatants using an ELISA assay.	Baseline: at vaccination
Secondary	Cytokines levels measurement	Pro-inflammatory cytokine (IL-12) and anti-inflammatory cytokine (IL-10) levels will be evaluated in serum and in IL-1 stimulated whole blood supernatants using an ELISA assay.	3 months post vaccination
Secondary	Cytokines levels measurement	Pro-inflammatory cytokine (IL-12) and anti-inflammatory cytokine (IL-10) levels will be evaluated in serum and in IL-1 stimulated whole blood supernatants using an ELISA assay.	6 months post vaccination
Secondary	Identification of T regulatory cells	Evaluation of Treg cells in PBMC will be performed by flow cytometry using appropriate fluorochrome conjugated monoclonal antibodies for CD25 and FoxP3 markers	Baseline: at vaccination
Secondary	Identification of T regulatory cells	Evaluation of Treg cells in PBMC will be performed by flow cytometry using appropriate fluorochrome conjugated monoclonal antibodies for CD25 and FoxP3 markers	3 months post vaccination
Secondary	Identification of T regulatory cells	Evaluation of Treg cells in PBMC will be performed by flow cytometry using appropriate fluorochrome conjugated monoclonal antibodies for CD25 and FoxP3 markers	6 months post vaccination
Secondary	Immune response to vaccination	Post-vaccination serum H1N1 antibodies titers (IgG and IgM) will be measured by an ELISA kit	Baseline: at vaccination
Secondary	Immune response to vaccination	Post-vaccination serum H1N1 antibodies titers (IgG and IgM) will be measured by an ELISA kit	3 months post vaccination
Secondary	Immune response to vaccination	Post-vaccination serum H1N1 antibodies titers (IgG and IgM) will be measured by an ELISA kit	6 months post vaccination