Table 1 X-linked miRNAs putatively involved in direct or indirect regulation of the PD-1/PD-L1 axis

From: Sex disparity in cancer: roles of microRNAs and related functional players

microRNA ID

X-chromosome position

Regulation

Role in cancer

3′UTR target

Gender disparities

References

hsa-miR-106a

chrX: 134170198-134170278 [-]

ER

Proliferation, invasion, migration and drug resistance

PD-L1; PD-L2; HIF-1; STAT3

F>M in systemic lupus erythematosus

[31, 46, 86]

hsa-miR-18b

chrX: 134170041-134170111 [-]

ER

Proliferation, metabolism

HIF-1

[53, 86]

hsa-miR-19b

chrX: 134169671-134169766 [-]

ER

Proliferation, invasion, drug resistance

HIF-1

[53, 86]

hsa-miR-20b

chrX: 134169809-134169877 [-]

ER

Proliferation, invasion, autophagy, drug resistance

PD-L1; PD-L2; HIF-1; STAT3

[46, 56, 86]

hsa-miR-221

chrX: 45746157-45746266 [-]

ER, AR

Proliferation, migration, invasion

STAT3

F>M in metabolic syndrome

[52, 63, 87, 88]

hsa-miR-222

chrX: 45747015-45747124 [-]

ER, AR

Proliferation, migration, invasion

STAT3

F<M in whole heart or isolated cardiomyocytes

[52, 63, 64, 87]

hsa-miR-424

chrX: 134546614-134546711 [-]

Proliferation, invasion, apoptosis

PD-L1

F>M in systemic lupus erythematosus

[57]

hsa-miR-513

chrX: 147213463-147213591 [-]

Proliferation, migration, apoptosis

PD-L1

[51]

  1. This table summarizes microRNA target genes and/or sex-hormonal regulation and, when described, their sex-biased (F>M or F<M) expression in different pathophysiological conditions. F>M and F<M indicate higher or lower expression in females respect to males
  2. ER estrogen receptor, AR androgen receptor, PD-L1/2 programmed cell death protein ligand 1/2, HIF-1 hypoxia-inducible factor-1, STAT3 signal transducer and activation of transcription-3