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Cui C, Wang J, Fagerberg E, Chen PM, Connolly KA, Damo M, Cheung JF, Mao T, Askari AS, Chen S, Fitzgerald B, Foster GG, Eisenbarth SC, Zhao H, Craft J, Joshi NS. Neoantigen-driven B cell and CD4 T follicular helper cell collaboration promotes anti-tumor CD8 T cell responses. Cell 2021; 184:6101-6118.e13. [PMID: 34852236 PMCID: PMC8671355 DOI: 10.1016/j.cell.2021.11.007] [Citation(s) in RCA: 163] [Impact Index Per Article: 54.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 07/21/2021] [Accepted: 11/05/2021] [Indexed: 12/31/2022]
Abstract
CD4 T follicular helper (TFH) cells support B cells, which are critical for germinal center (GC) formation, but the importance of TFH-B cell interactions in cancer is unclear. We found enrichment of TFH cell transcriptional signature correlates with GC B cell signature and with prolonged survival in individuals with lung adenocarcinoma (LUAD). We further developed a murine LUAD model in which tumor cells express B cell- and T cell-recognized neoantigens. Interactions between tumor-specific TFH and GC B cells, as well as interleukin (IL)-21 primarily produced by TFH cells, are necessary for tumor control and effector CD8 T cell function. Development of TFH cells requires B cells and B cell-recognized neoantigens. Thus, tumor neoantigens can regulate the fate of tumor-specific CD4 T cells by facilitating their interactions with tumor-specific B cells, which in turn promote anti-tumor immunity by enhancing CD8 T cell effector functions.
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Affiliation(s)
- Can Cui
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Jiawei Wang
- Program of Computational Biology and Bioinformatics, Yale University, New Haven, CT 06510, USA
| | - Eric Fagerberg
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Ping-Min Chen
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Kelli A Connolly
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Martina Damo
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Julie F Cheung
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Tianyang Mao
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Adnan S Askari
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Shuting Chen
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Brittany Fitzgerald
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Gena G Foster
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Stephanie C Eisenbarth
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA; Department of Internal Medicine (Rheumatology, Allergy and Immunology), Yale University School of Medicine, New Haven, CT 06520, USA; Department of Lab Medicine, Yale University School of Medicine, New Haven, CT 06519, USA
| | - Hongyu Zhao
- Department of Biostatistics, Yale School of Public Health, New Haven, CT 06510, USA
| | - Joseph Craft
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA; Department of Internal Medicine (Rheumatology, Allergy and Immunology), Yale University School of Medicine, New Haven, CT 06520, USA.
| | - Nikhil S Joshi
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA.
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Hammadeh ME, Askari AS, Georg T, Rosenbaum P, Schmidt W. Effect of freeze-thawing procedure on chromatin stability, morphological alteration and membrane integrity of human spermatozoa in fertile and subfertile men. Int J Androl 1999; 22:155-62. [PMID: 10367235 DOI: 10.1046/j.1365-2605.1999.00162.x] [Citation(s) in RCA: 117] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Cryopreservation is known to impair sperm motility and decrease the fertilization rate by detrimental effects on acrosomal structure and acrosin activity. However, the consequences of cryopreservation on the integrity of the sperm nucleus, chromatin stability and centrosome are less clear. The present study was designed to determine the effect of the freeze-thawing procedure on chromatin condensation (aniline blue staining) and the morphology (strict criteria) and membrane integrity of human spermatozoa. The structural and functional characteristics of the sperm plasma membrane were measured by the eosin-test and hypo-osmotic swelling test which were done separately. Sperm cryopreservation was performed on semen samples from two groups of men classified as fertile (n = 20) and subfertile (n = 72), based on their reproductive history and semen analysis according to WHO guidelines. The mean percentage of condensed chromatin, morphologically normal spermatozoa and membrane integrity in all semen samples investigated (n = 92) decreased significantly (p = 0.0001) after freeze-thawing, in comparison to the value observed prior to freezing. By comparing the semen samples between fertile and subfertile patients, significantly (p = 0.0009) greater damage was demonstrated in the subfertile than in the fertile group. Furthermore, no significant difference was observed between the two groups with regard to the morphological alteration and structural as well as functional damage of the sperm membrane. In conclusion, the freeze-thawing procedure significantly affects chromatin structure and sperm morphology, especially in the head and the tail regions, and this may explain the lower fertilization rate and IVF/ICSI outcome when frozen-thawed spermatozoa are used. In addition, this study demonstrates that chromatin condensation is a sensitive parameter for the evaluation of cryodamage of semen samples from fertile and subfertile patients, though subfertile patients with very poor semen characteristics have yet to be studied. It is therefore recommended that chromatin condensation be used as an additional parameter for the assessment of sperm quality after freeze-thawing.
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Affiliation(s)
- M E Hammadeh
- Department of Obstetrics & Gynaecology, University of Saarland, Homburg/Saar, Germany
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