Panacea Index Logo

Command Palette

Search for a command to run...

Mitigation of nicotine-induced podocyte injury through inhibition of thioredoxin interacting protein.

Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie
April 30, 2025
Sayantap Datta et al. (4 authors)
Journal ArticleMolecular Study
Study Details

Study Goal

The researchers aimed to determine whether TXNIP mediates nicotine-induced NLRP3 inflammasome activation and subsequent podocyte injury.

Results Summary

Nicotine treatment increased TXNIP/NLRP3 interaction, inflammasome activation, and podocyte damage, which was attenuated by TXNIP inhibitors Vera or SRI. The study demonstrated nicotine's harmful effects on podocytes, including increased apoptosis, cell permeability, and reduced podocin and nephrin expression.

Population

Podocytes (in vitro study)

Effective Dosage

Not specified

Duration

Not specified

Interactions

None mentioned

Extracted Claims (22)
InterventionDirectionEndpointPopulationDosageImpactClaim #
nicotine
increase
TXNIP/NLRP3 interaction in podocytes
podocytes
-
induced
#1
pre-treatment with TXNIP inhibitors, verapamil (Vera) or SRI-37330 (SRI)
decrease
nicotine-induced TXNIP/NLRP3 interaction
podocytes
-
attenuates
#2
nicotine treatment
increase
colocalization of Nlrp3 with Asc
podocytes
-
significantly increased
#3
nicotine treatment
increase
colocalization of Nlrp3 with caspase-1
podocytes
-
significantly increased
#4
nicotine treatment
increase
colocalization of Nlrp3 with TXNIP
podocytes
-
significantly increased
#5
Pretreatment with TXNIP inhibitor Vera or SRI
decrease
nicotine-induced Nlrp3/Asc colocalization
podocytes
-
abolished
#6
Pretreatment with TXNIP inhibitor Vera or SRI
decrease
nicotine-induced Nlrp3/caspase-1 colocalization
podocytes
-
abolished
#7
Pretreatment with TXNIP inhibitor Vera or SRI
decrease
nicotine-induced Nlrp3/TXNIP colocalization
podocytes
-
abolished
#8
nicotine treatment
increase
caspase-1 activity
podocytes
-
significantly increased
#9
nicotine treatment
increase
IL-1β production
podocytes
-
significantly increased
#10
prior treatment with TXNIP inhibiting Vera or SRI
decrease
nicotine-induced caspase-1 activity
podocytes
-
significantly attenuated
#11
prior treatment with TXNIP inhibiting Vera or SRI
decrease
nicotine-induced IL-1β production
podocytes
-
significantly attenuated
#12
nicotine treatment
decrease
podocin expression
podocytes
-
significantly decreased
#13
nicotine treatment
decrease
nephrin expression
podocytes
-
significantly decreased
#14
pretreatment with TXNIP inhibiting Vera or SRI
decrease
nicotine-induced podocin reduction
podocytes
-
attenuated
#15
pretreatment with TXNIP inhibiting Vera or SRI
decrease
nicotine-induced nephrin reduction
podocytes
-
attenuated
#16
nicotine treatment
increase
desmin expression
podocytes
-
significantly increased
#17
nicotine treatment
increase
apoptosis
podocytes
-
significantly increased
#18
nicotine treatment
increase
cell permeability
podocytes
-
significantly increased
#19
prior treatment with TXNIP inhibiting Vera or SRI
decrease
nicotine-induced desmin expression
podocytes
-
significantly attenuated
#20
prior treatment with TXNIP inhibiting Vera or SRI
decrease
nicotine-induced apoptosis
podocytes
-
significantly attenuated
#21
prior treatment with TXNIP inhibiting Vera or SRI
decrease
nicotine-induced cell permeability
podocytes
-
significantly attenuated
#22
Abstract

Nicotine has been reported to initiate NLRP3 inflammasome formation and activation in different pathological conditions. The current study assessed whether thioredoxin-interacting protein (TXNIP) mediates nicotine-induced NLRP3 inflammasome activation and consequent podocyte injury. Co-immunoprecipitation analysis demonstrated that nicotine-induced TXNIP/NLRP3 interaction in podocytes relative to control groups. However, pre-treatment with TXNIP inhibitors, verapamil (Vera) or SRI-37330 (SRI) attenuates nicotine-induced TXNIP/NLRP3 interaction. Confocal microscopic analysis showed that nicotine treatment significantly increased the colocalization of Nlrp3 with Asc, Nlrp3 with caspase-1 and Nlrp3 with TXNIP in podocytes compared to control cells. Pretreatment with TXNIP inhibitor Vera or SRI abolished nicotine-induced Nlrp3/Asc, Nlrp3/caspase-1 or Nlrp3/TXNIP colocalization. Correspondingly, nicotine treatment significantly increased the caspase-1 activity and IL-1β production compared to control cells. However, prior treatment with TXNIP inhibiting Vera or SRI significantly attenuated the nicotine-induced caspase-1 activity and IL-1β production. Further immunofluorescence analysis showed that nicotine treatment significantly decreased podocin and nephrin expression compared to control cells. However, pretreatment with TXNIP inhibiting Vera or SRI attenuated the nicotine-induced podocin and nephrin reduction. In addition, confocal, flow cytometry and biochemical analysis showed that nicotine treatment significantly increased desmin expression, apoptosis and cell permeability compared to control cells. However, prior treatment with TXNIP inhibiting Vera or SRI significantly attenuated the nicotine-induced desmin expression, apoptosis and cell permeability. Taken together, our results demonstrate that TXNIP/NLRP3 interaction constitutes a potentially key signalling mechanism driving nicotine-induced NLRP3 inflammasome formation, activation and subsequent podocyte damage.

Study Links
Quality Scores
Safety20
Efficacy85/10
Quality75/10
Research Impact Scores
APT Score0.05
Weight Score1.25
Normalized Score0.57
Related Supplements