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Table 1 Characteristics of included studies

From: Prognostic value of tertiary lymphoid structures (TLS) in digestive system cancers: a systematic review and meta-analysis

Author

Year

Country

Types

Patients(n)

Stage

Enrollment period

Follow-up time

Laboratory

Estimate TLS criteria

Cut-off criteria

Metastases

Outcomes

Deguchi S [29]

2022

Japan

ESCC

236

0-IVa

2014

median:51.0 month

HE、IHC

GC-TLS density

High vs. Low

No

RFS

Li RT [30]

2022

China

ESCC

122

I-IV

2017.1–2018.12

More than 2 years

HE、IHC

TLS

Presence vs. Absence

No

OS, DFS

Ling YH [31]

2022

China

ESCC

394

I-III

2008–2017

Median:68.57 month

HE、IHC

TLS

Presence vs. Absence

No

OS, DFS

Jiang Q [32]

2022

China

GC

292

I-IV

1983–2016

Until 2020.1

HE、IHC

Mature TLS

High vs. Low

Yes

OS

Kemi N [33]

2022

Finland

GC

721

I-IV

2002–2008

Median: 28.0 month

HE

TLS diameter

High vs. Low

NA

OS

Zhan Z [34]

2022

China

CRC

203

I-IV

2014.01–2017.07

Median: 50.0 month

IHC

TLS

High vs. None or Low

Yes

OS, DFS

Li JH [35]

2022

China

HCC

150

I-IV

2014–2018

Until 2020.12.30

HE、IHC、IF

TLS

Positive vs. Negative

Yes

RFS

Nie Y [36]

2022

China

HCC

145

0-C

2015–2017

More than 2 years

HE、IHC

TLS Grade

GradeB + C vs. Absence

Yes

OS

Wen SD [37]

2022

China

HCC

126

A-C

2013.04–2019.08

Median: 40.0 month

HE、IHC、IF

TLS density

High vs. Low

Yes

OS

Yu JS [38]

2022

China

GC

118

I-III

2009–2014

Until 2019.05

IHC

TLS

High vs. Low

No

OS, DFS

Cheng N [39]

2021

China

GC

846

I-IV

2008.12–2019.06

Mean: 22.1 month

HE、IHC

TLS

Absent vs. Present

NA

OS

Yamakoshi Y [40]

2021

Japan

GC

199

Ib-IV

2006–2008

Median: 49.0 month

IHC

TLS (B cell density)

Low vs. High

No

OS

Gunderson AJ [41]

2021

America

PC

63

I-III

NA

NA

HE、IHC

TLS

Presence vs. Absence

No

OS

Mori T [42]

2021

Japan

GC

261

I-IV

2014–2017

NA

IHC

TLS

High vs. Low

Yes

OS

Zhao YY [43]

2020

China

ESCC

593

T1

2009–2018

Median: 42.0 month

HE

TLS

Presence vs. Absence

No

OS

He WT [44]

2020

China

GC

914

I-III

2009–2014

Until 2018.1

HE

TLS-SUM

High vs. Low

No

OS

Li Q [45]

2020

China

GC

63

I-III

2001.01–2013.12

Until 2011.11.30

HE

Number of TLS

High vs. Low

No

OS

Li H [46]

2020

China

HCC

303

I-IV

2009.03–2013.8

Median: 61.3 month

HE、IHC

TLS

Presence vs. Absence

Yes

OS, RFS

Zhang WH [47]

2020

China

PC

182

I-III

2006–2018

Median: 60.0 month

HE、IHC

TLS

Presence vs. Absence

No

OS, RFS

Shota K [48]

2019

Japan

PC

47

0-IV

2009.1–2015.12

Median:24.98 month

IHC

TLO density

High vs. Low

Yes

OS

Calderaro J [22]

2018

France

HCC

273

B-C

1995–2016

2 years after surgery

HE

TLS

Presence vs. Absence

Yes

RFS

Posch F [20]

2017

Austria

CRC

109

II-III

1996.01–2011.06

3 years

IF

Number of TLS

 < Q1 vs. ≥ Q1

No

RFS

Schweiger T [49]

2016

Austria

CRC

57

I-IV

2009.04–2014.06

Median: 30.0 month

IHC

TLS

Presence vs. Not present

Yes

OS, RFS

Hiraoka N [50]

2015

Japan

PC

308

Ia-IV

1990–2004

Median: 17.6 month

HE、IHC

TLO

Absence vs. Presence

Yes

OS, DFS

Di Caro G [51]

2014

Italy

CRC

185

II-III

1997.01–2005.11

4.71 years

IHC

TLT

 < Median vs. ≥ Median

No

RFS

  1. Abbreviations: ESCC esophageal squamous cell carcinoma, CRC colorectal cancer, GC gastric cancer, HCC hepatocellular carcinoma, PC pancreatic cancer, HE hematoxylin eosin staining, IHC immunohistochemistry, IF immunofluorescence, OS overall survival, RFS relapse-free survival, DFS disease-free survival, TLS tertiary lymphoid structure, iTLS intratumoral tertiary lymphoid structure, TLO tertiary lymphoid organ, GC-TLS germinal center tertiary lymphoid structure, NA not available