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Comprehensive Landscape of Heparin Therapy for COVID-19
Chen Shi1, Wu Tingting1, Jin-Ping Li2
1Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, 430022, China.
Insights
Heparin, an anticoagulant, shows potential in treating COVID-19 by inhibiting SARS-CoV-2 infection and reducing inflammation, beyond its known antithrombotic effects. Further research is needed to balance its benefits against potential adverse effects.
Area of Science:
- Pharmacology
- Virology
- Immunology
Background:
- COVID-19, caused by SARS-CoV-2, is a global health crisis.
- Heparin, an anticoagulant, may offer benefits beyond thrombosis prevention in COVID-19 patients.
- Clinical and in vitro studies suggest heparin interacts with SARS-CoV-2.
Purpose of the Study:
- To review the pharmacological mechanisms of heparin in COVID-19.
- To evaluate the effectiveness and safety of heparin therapy for SARS-CoV-2 infection.
- To discuss heparin's potential multiple-targeting effects.
Main Methods:
- Review of clinical observations and biochemical studies on heparin and SARS-CoV-2.
- Analysis of pharmacological data on heparin's anticoagulant, anti-inflammatory, and antiviral activities.
- Assessment of existing evidence on heparin's efficacy and safety in COVID-19 management.
Main Results:
- Heparin demonstrates strong binding to the SARS-CoV-2 Spike protein, inhibiting viral entry.
- Heparin exhibits anti-inflammatory properties relevant to COVID-19 pathogenesis.
- Evidence suggests heparin may have direct antiviral effects against SARS-CoV-2.
- Clinical observations indicate symptom attenuation with heparin use.
Conclusions:
- Heparin presents a potential multi-targeting therapeutic agent for COVID-19.
- Heparin's anticoagulant, anti-inflammatory, and direct antiviral actions warrant consideration.
- Careful evaluation of heparin's benefits versus risks is crucial for its application in COVID-19 therapy.
Abstract:
The pandemic coronavirus disease 2019 (COVID-19), caused by the infection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is rapidly spreading globally. Clinical observations found that systemic symptoms caused by SARS-CoV-2 infection are attenuated when using the anticoagulant agent heparin, indicating that heparin may play other roles in managing COVID-19, in addition to prevention of pulmonary thrombosis. Several biochemical studies show strong binding of heparin and heparin-like molecules to the Spike protein, which resulted in inhibition of viral infection to cells. The clinical observations and in vitro studies argue for a potential multiple-targeting effects of heparin. However, adverse effects of heparin administration and some of the challenges using heparin therapy for SARS-CoV-2 infection need to be considered. This review discusses the pharmacological mechanisms of heparin regarding its anticoagulant, anti-inflammatory and direct antiviral activities, providing current evidence concerning the effectiveness and safety of heparin therapy for this major public health emergency.
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