Skip to main content

Advertisement

Log in

Sex-specific mechanisms of tolerance for the cannabinoid agonists CP55,940 and delta-9-tetrahydrocannabinol (Δ9-THC)

  • Original Investigation
  • Published:
Psychopharmacology Aims and scope Submit manuscript

Abstract

Rationale

Tolerance to cannabinoids could limit their therapeutic potential. Male mice expressing a desensitization-resistant form (S426A/S430A) of the type-1 cannabinoid receptor (CB1R) show delayed tolerance to delta-9-tetrahydrocannabinol (∆9-THC) but not CP55,940. With more women than men using medical cannabis for pain relief, it is essential to understand sex differences in cannabinoid antinociception, hypothermia, and resultant tolerance.

Objective

Our objective was to determine whether female mice rely on the same molecular mechanisms for tolerance to the antinociceptive and/or hypothermic effects of cannabinoids that we have previously reported in males. We determined whether the S426A/S430A mutation differentially disrupts antinociceptive and/or hypothermic tolerance to CP55,940 and/or Δ9-THC in male and female S426A/S430A mutant and wild-type littermates.

Results

The S426A/S430A mutation conferred an enhanced antinociceptive response for ∆9-THC and CP55,940 in both male and female mice. While the S426A/S430A mutation conferred partial resistance to ∆9-THC tolerance in male mice, disruption of CB1R desensitization had no effect on tolerance to ∆9-THC in female mice. The mutation did not alter tolerance to the hypothermic effects of ∆9-THC or CP55,940 in either sex. Interestingly, female mice were markedly less sensitive to the antinociceptive effects of 30 mg/kg ∆9-THC and 0.3 mg/kg CP55,940 compared with male mice.

Conclusions

Our results suggest that disruption of the GRK/βarrestin2 pathway of desensitization alters tolerance to Δ9-THC but not CP55,940 in male but not female mice. As tolerance to Δ9-THC appears to develop differently in males and females, sex should be considered when assessing the therapeutic potential and dependence liability of cannabinoids.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10

Similar content being viewed by others

Abbreviations

2-AG:

2-Arachidonoylglycerol

ACEA:

Arachidonyl-2-chloroethylamide

AEA:

Anandamide

ANOVA:

Analyses of variance

βArr2:

Beta-arrestin 2

%∆BT:

Percent change in body temperature

CB:

Cannabinoid

CB1/CB1R:

Type-1 cannabinoid receptor

CB2/CB2R:

Type-2 cannabinoid receptor

CB1A:

SR141716A (CB1R antagonist)

CB2A:

SR144528 (CB2 inverse agonist)

CI:

Confidence interval

CP55,940:

5–1(1,1-Dimethylheptyl)-2-[(1R,2R,5R)-5-hydroxy-2-(3-hydroxypropyl)cyclohexyl]-phenol

CRF:

Corticotropin-releasing factor

CRF1:

Corticotropin-releasing factor Type I receptor

CUD:

Cannabinoid use disorder(s)

9-THC:

Delta-9-tetrahydrocannabinol

ED50 :

Mean effective dose

GPCR:

G protein-coupled receptor

GRK:

G protein-coupled receptor kinase

GTPγS:

Guanosine 5’-O-[gamma-thio]triphosphate

HU210:

(6AR,10aR)-9-(hydroxymethyl)-6,6-dimethyl-3-(2-methyloctan-2-yl)-6a,7,10,10a-tetrahydrobenzo[c]chromen-1-ol

IP:

Intraperitoneal

JNK:

C-Jun N-terminal kinases

KI:

Knock-in

%MPE:

Percentage of maximal possible effect

OVX:

Ovariectomized

SEM:

Standard error of the mean

SC:

Subcutaneous

Veh:

Vehicle

WIN55,212–2:

R-( +)-[2,3-Dihydro-5-methyl-3-[(morpholinyl-methyl]pyrrolo[1,2,3-de]-1,4-benzoxazinyl]-(1-mapthalenyl)methanone mesylate

WT:

Wild-type

References

Download references

Acknowledgements

This research was supported by the National Institute on Drug Abuse grants DA037355 (DJM) and DA044999 (DJM), the Penn State University College of Medicine Department of Anesthesiology & Perioperative Medicine, Marshall University’s Department of Biomedical Sciences, and a grant from the Pennsylvania Department of Health using CURE Tobacco Settlement Funds (DJM).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Angela N. Henderson-Redmond.

Ethics declarations

Conflict of interest

The authors would like to state that they have no conflicts of interest, financial or otherwise, to declare.

Additional information

Publisher's note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

This article belongs to a Special Issue on Cannabis and Cannabinoids

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Henderson-Redmond, A.N., Sepulveda, D.E., Ferguson, E.L. et al. Sex-specific mechanisms of tolerance for the cannabinoid agonists CP55,940 and delta-9-tetrahydrocannabinol (Δ9-THC). Psychopharmacology 239, 1289–1309 (2022). https://doi.org/10.1007/s00213-021-05886-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00213-021-05886-9

Keywords

Navigation