Knowledge structure analysis and network visualization of tumor-associated macrophages in hepatocellular carcinoma research: A bibliometric mapping

Table 5 Top 20 author keywords related to tumor-associated macrophages in hepatocellular carcinoma research

Rank	Keyword	Occurrences	Total link strength	Rank	Keyword	Occurrences	Total link strength
1	HCC	338	1210	11	NF-kappa B	20	76
2	TAMs	223	855	12	Tamoxifen	19	51
3	TME	152	624	13	Angiogenesis	18	106
4	Immunotherapy	89	379	14	M2 macrophages	18	60
5	Prognostic	55	194	15	Biomarkers	17	75
6	Inflammation	33	124	16	PD-L1	17	78
7	Polarization	33	115	17	Immune infiltration	16	54
8	EMT	30	118	18	Immunosuppression	15	76
9	CSCs	26	107	19	MicroRNA	14	67
10	Metastasis	21	102	20	Exosomes	14	59

HCC: Hepatocellular carcinoma; TAMs: Tumor-associated macrophages; TME: Tumor microenvironment; EMT: Epithelial-mesenchymal transition; CSCs: Cancer stem cells; NF: Nuclear factor; PD-L1: Programmed death ligand 1.