Importance of Immunoglobulin Therapy for COVID-19 Patients With
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Nabih Bull Natl Res Cent (2021) 45:46 https://doi.org/10.1186/s42269-021-00502-4 Bulletin of the National Research Centre REVIEW Open Access Importance of immunoglobulin therapy for COVID-19 patients with lymphocytopenia Heba K. Nabih* Abstract Background: The global coronavirus disease 2019 (COVID-19) was announced as pandemic by the World Health Organization (WHO). With the increased number of infected and dead victims daily all over the world, it becomes necessary to stop or overcome its rapid spread. Main body Although the production of vaccine or even specifed efective anti-virus may take about six months to a year, intra- venous immunoglobulin (IVIg) may be clinically used as a safe treatment to save and improve the quality of life of patients with a variety of immunodefciency diseases such as lymphocytopenia, which is a common clinical feature in COVID-19. Conclusion: Through the current review, it was concluded that this passive immunization may promote the immu- nity to better fght against the virus, so the survival of the patients could be kept longer. The efcacy of immunother- apy with IVIg would be greater if the immune IgG antibodies were collected from convalescent plasma therapy. Keywords: COVID-19, Lymphocytopenia, Immunoglobulins, Immunotherapy, Passive immunization, Convalescent plasma therapy Background many cases may indicate or lead to serious illness that can Te epidemic of severe acute respiratory syndrome cor- be fatal due to suppression of immunity that will result in onavirus 2 (SARS-CoV-2) originating in Wuhan, China, severe risk complications due to increased facility of viral, has rapidly spread all over the world (Huang et al. 2020), bacterial, and fungal infections. In one screening study and in March 2020, the World Health Organization including 41 patients diagnosed with COVID-19, Huang (WHO) declared coronavirus disease 2019 (COVID- et al. 2020 recorded that 26 (63%) of 41 patients had 19) (SARS-CoV-2) outbreak a pandemic (World Health lymphocytopenia (85% of an intensive care unit (ICU) Organization (WHO) 2020). patients and 54% of non-ICU patients). Tirteen (32%) patients were admitted to ICU and six (15%) died. Com- Main text pared with non-ICU patients, ICU patients had higher Incidence of lymphocytopenia in COVID‑19 patients plasma levels of interleukins (ILs)-2, 7, 10, granulocyte– One of the most common clinical features of patients suf- macrophage colony-stimulating factor (GM-CSF), and fering from novel coronavirus disease 2019 (COVID-19) tumor necrosis factor alpha (TNF-α) (Huang et al. 2020). is lymphocytopenia. Such a decrease of lymphocytes in Immunoglobulins and their production Immunoglobulins (Igs) are highly diverse autologous *Correspondence: [email protected]; [email protected]; [email protected] molecules able to improve the immunity in diferent Medical Biochemistry Department, Medical Research Division, National physiological and diseased conditions. Tey have a role Research Centre, 33 El Bohouth St. (Former El Tahrir St.), Dokki, P.O. 12622, in the development and function of both B and T lym- Giza, Egypt phocytes. Defciencies in either of these two arms of © The Author(s) 2021. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creat iveco mmons .org/licen ses/by/4.0/. Nabih Bull Natl Res Cent (2021) 45:46 Page 2 of 4 immunity can result in a heightened susceptibility to (Cohn et al. 1946; Oncley et al. 1949) found a method bacterial, fungal, or viral infections. Immunoglobulins that yields Igs for intravenous and subcutaneous use (Eibl are a group of closely related glycoproteins composed of 2008) by the separation of plasma proteins into individual 82–96% protein and 4–18% carbohydrate. Te plasma stable large-scale fractions with diferent biologic func- concentration of these 150 kDa glycoproteins is depend- tions. Te primary purifcation processes for commer- ing on individual variations and level of environmental cial IVIg production include fractionation, purifcation exposure to antigens, with a mean concentration of 7 to (through removal of lipoproteins, albumin, and other 12 g/L. Te immunoglobulin G (IgG), a major efector plasma proteins, by cloth fltration in the presence of molecule of the humoral immune response, accounts for flter aid, a procedure that also removes many potential about 75% of the total Igs in the plasma of healthy indi- viruses (Buchacher and Iberer 2006)), ion-exchange chro- viduals. Other classes of Igs which constitute the other matography (the implementation of chromatographic 25% of the Igs are IgM, IgA, IgD, and IgE (Afonso and procedures also aims at the removal of IgA, a cause of João 2016). severe anaphylactic shock in patients with IgA defciency Polyclonal immunoglobulins may be used as a therapy presenting anti-IgA antibodies), and virus inactivation in many diseases in diferent circumstances such as pri- and removal using solvent/detergent (S/D) treatment mary and secondary hypogammaglobulinemia, recurrent (Fahey and Horbett 1959). Pasteurization is used by some infections, polyneuropathies, cancer, and after allogeneic manufacturers to treat IVIg solutions by heating at 60 ˝C transplantation. Moreover, polyclonal immunoglobu- for 10 h (Uemura et al. 1994). A more recent method pre- lins were reported to activate certain subpopulations of pares the IgG more or less directly from plasma and not T cells with efects on T cell proliferation, survival, and from a precipitate. Recently, the manufacturing processes function in lymphocytopenia, a situation that is accom- have become more developed ensuring good in vivo tol- panied by hypogammaglobulinemia. Tese results con- erance and minimizing side efects, in particular trans- frm the impact of intravenous immunoglobulin (IVIg) mission of infectious agents and facilitated recovery treatment as a therapy in cases of severe lymphocytope- (Radosevich and Burnouf 2010; Martin 2006). nia, a situation that can occur after chemo- and radio- Depending on the immune status of the patient, the therapy treatments of cancer patients with or without half-life of IVIg after intravenous infusion or intramuscu- COVID-19 infection. Besides, IVIg has also been used lar injection is about 2–3 weeks. Te half-life of most IgG as an anti-infectious agent against viruses, bacteria, and antibodies is 33–36 days in immune-defcient patients fungi in human patients and experimental models (Diep who receive IVIg infusions, with a median serum half- et al. 2016; Bayry et al. 2004; Shopsin et al. 2016; Ben- life of 23 days (Wasserman et al. 2009). Tis increases Nathan et al. 2003). IVIgs are a therapeutic preparation the availability of sufcient specifc IgG to fght infec- of pooled normal polyspecifc human IgGs collected tion. After injection of relatively high amounts of IVIg from large numbers of healthy donors. Te preparation (0.1–2 g/kg body mass), the IgG concentration in serum contains antibodies to microbial antigens, self-antigens immediately elevates, falls rapidly in the frst 1 to 7 days (natural auto-antibodies), and anti-idiotypic antibodies (due to passage of IgG out of the vasculature into lymph which recognize other antibodies. Te many thousands and extracellular fuid compartments), and then falls of donors who contribute to a typical pool of plasma more slowly thereafter (because of catabolism while IgG used for isolation of immunoglobulin represent a wide in lymph and tissues slowly difuses back into the circula- range of antibody specifcities against infectious agents tion) (Bonilla 2008). (Looney and Huggins 2006; Guideline and on the Clini- cal Investigation of Human NormalImmunoglobulin For Impact of immunoglobulin therapy for COVID‑19 patients Intravenous Administration (IVIg) 2014) such as bacte- IVIg has immunomodulatory activities such as decreas- rial, viral, and also a large number of self-antigens refect- ing self cellular destruction mediated by phagocytosis ing the cumulative exposure of the donor population to (Gelfand 2012), neutralizing an autoantibody and ham- the environment. IVIg preparations from pooled plasma pering its production via binding to auto-reactive B lym- of thousands of healthy donors contain both monomeric phocytes (Dwyer 1992), complement system inhibition IgG fraction that shows increased reactivity toward to hamper the subsequent formation of the membrane T-independent antigens of pathogens and dimeric IgG attack complex (Basta 1996), modulation of cytokine fraction that represents mainly idiotypic–anti-idiotypic including interleukins (ILs)-1, 2, 3, 4, 5, 10, tumor necro- antibody pairs and controls the immune response to cer- sis factor alpha (TNF-α), and granulocyte–macrophage tain categories of pathogens, whereas IVIg isolated from colony-stimulating factor (GM-CSF) and cytokine antag- one donor contains only IgG monomers (Tankersley onist (IL-1 receptor antagonist) production (Andersson et al. 1988). Cohn et al. in cooperation with Oncley et al. et al. 1996), impairing the ability of mature dendritic Nabih Bull Natl Res Cent (2021) 45:46 Page 3 of 4 cells (DCs) to produce IL-12, and enhancing their abil- titers, antibodies. Te results of this study lead to that ity to produce IL-10 (Bayry et al. 2003; Othy et al. 2012), convalescent plasma may have contributed to the clear- preventing platelet consumption triggered by a patho- ance of the COVID-19 virus and also the improvement of genic auto-antibody (Samuelsson et al.