Table 1.

Summary of immunotherapy methods.

Classification	Therapeutic method	References
Mechanism of action	1. Anti-TGF-β preparation 2. The nuclear factor kappaB-targeted inhibitor 3. Complement system inhibitors	(60) (61) (69) (70)
Preclinical evidence	1. Immunotherapy based on the CD47SIRPa signaling pathway 2. Anti-exocrine therapy 3. Oral Lactobacillus gasseri OLL2809 4. An extract of the white mistletoe tree Helixor A 5. Targeted inhibition of PD-1 6. Loratadine 7. Anti-TNF preparation 8. Interleukin preparation 9. Recombinant INF-2β 10. COX-2 inhibitor 11. Statins 12. Mesenchymal stem cells 13. Vitamin D 14. Bacillus Calmette–Guerin	(39) (40) (42) (43) (47) (52) (53) (54) (55) (57) (58) (59) (64) (72) (73) (75) (76) (77) (79) (82) (83) (57)
Clinical evidence	1. Levonorgestrel-releasing intrauterine system 2. Danazol	(46) (68)