Identification of a Favorable Prognostic Subgroup in Oral Squamous Cell Carcinoma: Characterization of ITGB4/PD-L1<sup>high</sup> with CD8/PD-1<sup>high</sup>
Integrin β4 (ITGB4) is a member of the integrin family, which plays a crucial role in mediating cell adhesion to the extracellular matrix. Recent studies have demonstrated that ITGB4 is involved in tumorigenesis and metastasis during the development of cancer. However, the role of ITGB4 in oral squa...
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MDPI AG
2023-06-01
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| Series: | Biomolecules |
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| Online Access: | https://www.mdpi.com/2218-273X/13/6/1014 |
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| author | Si-Rui Ma Jian-Feng Liu Rong Jia Wei-Wei Deng Jun Jia |
| author_facet | Si-Rui Ma Jian-Feng Liu Rong Jia Wei-Wei Deng Jun Jia |
| author_sort | Si-Rui Ma |
| collection | DOAJ |
| description | Integrin β4 (ITGB4) is a member of the integrin family, which plays a crucial role in mediating cell adhesion to the extracellular matrix. Recent studies have demonstrated that ITGB4 is involved in tumorigenesis and metastasis during the development of cancer. However, the role of ITGB4 in oral squamous cell carcinoma (OSCC) remains unclear. A Multiplex immunohistochemistry (OPAL™, mIHC) assay was employed to stain ITGB4, ALDH1, PD-L1, cytokeratin (CK), CD8 and PD-1 in a human OSCC tissue microarray, containing 26 normal oral epithelium samples, 21 oral epithelium dysplasia samples and 76 OSCC samples. The expression pattern and clinicopathological characteristics of ITGB4 were analyzed and compared with those of PD-1, PD-L1, ALDH1 and CD8. The correlation between subgroups of tumor cells, including ITGB4<sup>+</sup>PD-L1<sup>+</sup> and ITGB4<sup>+</sup>ALDH1<sup>+</sup>, and subgroups of T cells, including CD8<sup>+</sup> and CD8<sup>+</sup>PD-1<sup>+</sup>, was evaluated using two-tailed Pearson’s statistics. A Kaplan–Meier curve was built, and a log-rank test was performed to analyze the survival rate of different subgroups. The mIHC staining results show that ITGB4 was mostly expressed in the tumor cells, with a significant increase in the OSCC specimens compared with normal oral epithelium and oral epithelium dysplasia. The paired analysis, conducted between the OSCC tumor tissue and normal paracancer mucosa, confirmed the results. The study further revealed that ITGB4<sup>+</sup>PD-L1<sup>+</sup> cancer cells, but not ITGB4<sup>+</sup>ALDH1<sup>+</sup> cancer cells, were significantly associated with the infiltration of CD8<sup>+</sup> T cells (positivity <i>p</i> = 0.005, positive number <i>p</i> = 0.03). Additionally, ITGB4<sup>+</sup>PD-L1<sup>+</sup> tumor cells were positively correlated with CD8<sup>+</sup>PD-1<sup>+</sup> T cells (positivity <i>p</i> = 0.02, positive number <i>p</i> = 0.03). Most intriguingly, the subgroup of ITGB4/PD-L1<sup>high</sup> with CD8/PD-1<sup>high</sup> displayed the best prognosis compared with the other considered subgroups. The results show that the expression of ITGB4 was increased in OSCC compared with normal oral mucosa. Furthermore, a specific subgroup with high levels of expression of ITGB4/PD-L1 and CD8/PD-1 was found to have a relatively better prognosis compared with the other subgroups. Ultimately, this study sheds light on the potential role of ITGB4 in OSCC and provides a basis for further investigation. |
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| language | English |
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| spelling | doaj.art-d576dbdc982a4a60a7491a6fe489c4a32023-11-18T09:31:56ZengMDPI AGBiomolecules2218-273X2023-06-01136101410.3390/biom13061014Identification of a Favorable Prognostic Subgroup in Oral Squamous Cell Carcinoma: Characterization of ITGB4/PD-L1<sup>high</sup> with CD8/PD-1<sup>high</sup>Si-Rui Ma0Jian-Feng Liu1Rong Jia2Wei-Wei Deng3Jun Jia4The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, ChinaThe State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, ChinaThe State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, ChinaThe State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, ChinaThe State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, ChinaIntegrin β4 (ITGB4) is a member of the integrin family, which plays a crucial role in mediating cell adhesion to the extracellular matrix. Recent studies have demonstrated that ITGB4 is involved in tumorigenesis and metastasis during the development of cancer. However, the role of ITGB4 in oral squamous cell carcinoma (OSCC) remains unclear. A Multiplex immunohistochemistry (OPAL™, mIHC) assay was employed to stain ITGB4, ALDH1, PD-L1, cytokeratin (CK), CD8 and PD-1 in a human OSCC tissue microarray, containing 26 normal oral epithelium samples, 21 oral epithelium dysplasia samples and 76 OSCC samples. The expression pattern and clinicopathological characteristics of ITGB4 were analyzed and compared with those of PD-1, PD-L1, ALDH1 and CD8. The correlation between subgroups of tumor cells, including ITGB4<sup>+</sup>PD-L1<sup>+</sup> and ITGB4<sup>+</sup>ALDH1<sup>+</sup>, and subgroups of T cells, including CD8<sup>+</sup> and CD8<sup>+</sup>PD-1<sup>+</sup>, was evaluated using two-tailed Pearson’s statistics. A Kaplan–Meier curve was built, and a log-rank test was performed to analyze the survival rate of different subgroups. The mIHC staining results show that ITGB4 was mostly expressed in the tumor cells, with a significant increase in the OSCC specimens compared with normal oral epithelium and oral epithelium dysplasia. The paired analysis, conducted between the OSCC tumor tissue and normal paracancer mucosa, confirmed the results. The study further revealed that ITGB4<sup>+</sup>PD-L1<sup>+</sup> cancer cells, but not ITGB4<sup>+</sup>ALDH1<sup>+</sup> cancer cells, were significantly associated with the infiltration of CD8<sup>+</sup> T cells (positivity <i>p</i> = 0.005, positive number <i>p</i> = 0.03). Additionally, ITGB4<sup>+</sup>PD-L1<sup>+</sup> tumor cells were positively correlated with CD8<sup>+</sup>PD-1<sup>+</sup> T cells (positivity <i>p</i> = 0.02, positive number <i>p</i> = 0.03). Most intriguingly, the subgroup of ITGB4/PD-L1<sup>high</sup> with CD8/PD-1<sup>high</sup> displayed the best prognosis compared with the other considered subgroups. The results show that the expression of ITGB4 was increased in OSCC compared with normal oral mucosa. Furthermore, a specific subgroup with high levels of expression of ITGB4/PD-L1 and CD8/PD-1 was found to have a relatively better prognosis compared with the other subgroups. Ultimately, this study sheds light on the potential role of ITGB4 in OSCC and provides a basis for further investigation.https://www.mdpi.com/2218-273X/13/6/1014ITGB4oral squamous cell carcinomaPD-1/PD-L1 axisCD8prognosis |
| spellingShingle | Si-Rui Ma Jian-Feng Liu Rong Jia Wei-Wei Deng Jun Jia Identification of a Favorable Prognostic Subgroup in Oral Squamous Cell Carcinoma: Characterization of ITGB4/PD-L1<sup>high</sup> with CD8/PD-1<sup>high</sup> Biomolecules ITGB4 oral squamous cell carcinoma PD-1/PD-L1 axis CD8 prognosis |
| title | Identification of a Favorable Prognostic Subgroup in Oral Squamous Cell Carcinoma: Characterization of ITGB4/PD-L1<sup>high</sup> with CD8/PD-1<sup>high</sup> |
| title_full | Identification of a Favorable Prognostic Subgroup in Oral Squamous Cell Carcinoma: Characterization of ITGB4/PD-L1<sup>high</sup> with CD8/PD-1<sup>high</sup> |
| title_fullStr | Identification of a Favorable Prognostic Subgroup in Oral Squamous Cell Carcinoma: Characterization of ITGB4/PD-L1<sup>high</sup> with CD8/PD-1<sup>high</sup> |
| title_full_unstemmed | Identification of a Favorable Prognostic Subgroup in Oral Squamous Cell Carcinoma: Characterization of ITGB4/PD-L1<sup>high</sup> with CD8/PD-1<sup>high</sup> |
| title_short | Identification of a Favorable Prognostic Subgroup in Oral Squamous Cell Carcinoma: Characterization of ITGB4/PD-L1<sup>high</sup> with CD8/PD-1<sup>high</sup> |
| title_sort | identification of a favorable prognostic subgroup in oral squamous cell carcinoma characterization of itgb4 pd l1 sup high sup with cd8 pd 1 sup high sup |
| topic | ITGB4 oral squamous cell carcinoma PD-1/PD-L1 axis CD8 prognosis |
| url | https://www.mdpi.com/2218-273X/13/6/1014 |
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