Table 1 Summary of existing pharmacological modulators that act directly or indirectly on innate immune receptors-mediated inflammatory responses in endothelial cells

From: Endothelial activation and dysfunction in COVID-19: from basic mechanisms to potential therapeutic approaches

Potential therapeutic

Formula

Targets

Mechanism of action

Refs

E6446

C27H35N3O3

TLR7, TLR9

Inhibit TLR7 and TLR9-mediated deleterious inflammatory responses

129

FR 167653

C24H20FN5O6S

p38

A potent suppressor of TNF-α and IL-1β production via specific inhibition of p38

130

NOD-IN-1

C18H17NO4S

NOD1, NOD2

Mixed inhibitor of NOD1 and NOD2

131

Nodinitib-1

C14H13N3O2S

NOD1

A NOD1 inhibitor

132

GSK717

C28H28N4O2

NOD2

Inhibit NOD2-mediated signaling

133

Muscone

C16H30O

NF-κB, NLRP3

Inhibit NF-κB and NLRP3 inflammasome activation and decrease the levels of inflammatory cytokines

134

CY-09

C19H12F3NO3S2

NLRP3

A selective and direct NLRP3 inhibitor

135

INF39

C12H13ClO2

NLRP3

An irreversible and noncytotoxic NLRP3 inhibitor

136

Ossirene

C2H8Cl3NO2Te

IL-1β, IL-10, caspase-1

A potent IL-1β, IL-10 and caspase-1 inhibitor

132,137

Mulberroside A

C26H32O14

NLRP3, caspase-1, NF-κB

Inhibit the activation of NLRP3, caspase-1, and NF-κB and the phosphorylation of MAPK exhibiting anti-inflammatory and anti-apoptotic effects

138

Desethyl chloroquine

C16H22ClN3

TLRs

An inhibitor of autophagy and TLRs

139

Schaftoside

C26H28O14

TLR4, MyD88

Inhibit the expression of TLR4 and MyD88

140

Resatorvid

C15H17ClFNO4S

TLR4

Downregulate TLR4-mediated MyD88 or TRIF signaling

141