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- W4297486032 abstract "Diffuse large B cell lymphoma (DLBCL) is the most common pathological subtype of non-Hodgkin lymphoma (NHL) and is the most common type of adult lymphoma. Due to the poor prognosis of relapsed/refractory DLBCL, new drug targets and therapeutic methods are urgently needed. We investigated the expression of programmed death ligand 1 (PD-L1) and 3-monooxygenase/tryptophan 5-monooxygenase activating protein zeta (14-3-3ζ or YWHAZ) in patients with DLBCL. The purpose was to verify the expression levels of YWHAZ and PD-L1 and their relationships with the prognosis of DLBCL and to lay a foundation for further study on the role of YWHAZ and PD-L1 in DLBCL. Immunohistochemistry was used in 140 patients with DLBCL to test protein expression levels of YWHAZ and PD-L1. All patients were followed up in the hospital or by telephone or via WeChat. The positive expression rate of YWHAZ was 62.14% (87/140). The expression was negatively correlated with the positive expression of BAD ( <math xmlns=http://www.w3.org/1998/Math/MathML id=M1> <mi>r</mi> <mo>=</mo> <mo>−</mo> <mn>0.177</mn> </math> , <math xmlns=http://www.w3.org/1998/Math/MathML id=M2> <mi>P</mi> <mo>=</mo> <mn>0.036</mn> </math> ) and positively correlated with the positive expression of BCL-2 ( <math xmlns=http://www.w3.org/1998/Math/MathML id=M3> <mi>r</mi> <mo>=</mo> <mn>0.180</mn> </math> , <math xmlns=http://www.w3.org/1998/Math/MathML id=M4> <mi>P</mi> <mo>=</mo> <mn>0.033</mn> </math> ). When the cut-off value for PD-L1 was established at 5%, 10%, 15%, and 20%, the corresponding positive expression rates of PD-L1 were 79.66% (94/118), 51.69% (61/118), 40.68% (48/118), and 36.44% (43/118). YWHAZ significantly affected the OS of DLBCL ( <math xmlns=http://www.w3.org/1998/Math/MathML id=M5> <mi>P</mi> <mo>≤</mo> <mn>0.001</mn> </math> ). The prognosis of the patients was related to the positive expression of PD-L1 when the cut-off value of PD-L1 was 5% ( <math xmlns=http://www.w3.org/1998/Math/MathML id=M6> <mi>P</mi> <mo>=</mo> <mn>0.033</mn> </math> ). However, positive expression of PD-L1 was not associated with the prognosis when the cut-off values of PD-L1 were 10% ( <math xmlns=http://www.w3.org/1998/Math/MathML id=M7> <mi>P</mi> <mo>=</mo> <mn>0.404</mn> </math> ), 15% ( <math xmlns=http://www.w3.org/1998/Math/MathML id=M8> <mi>P</mi> <mo>=</mo> <mn>0.208</mn> </math> ), and 20% ( <math xmlns=http://www.w3.org/1998/Math/MathML id=M9> <mi>P</mi> <mo>=</mo> <mn>0.408</mn> </math> ). The positive expression of YWHAZ (hazard ratio 6.215; 95% confidence interval 3.214-12.017; <math xmlns=http://www.w3.org/1998/Math/MathML id=M10> <mi>P</mi> <mo><</mo> <mn>0.05</mn> </math> ) was an independent adverse prognostic factor for OS. YWHAZ may be an important oncogene in the occurrence and development of DLBCL and may be used as a therapeutic target. PD-L1 may be an oncogene or tumor suppressor gene in the occurrence and development of DLBCL. Different cut-off values of PD-L1 may affect the prognosis of DLBCL." @default.
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- W4297486032 date "2022-09-28" @default.
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- W4297486032 title "Expression of PD-L1 and YWHAZ in Patients with Diffuse Large B Cell Lymphoma: A Possible Association with the Prognosis of Lymphoma" @default.
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- W4297486032 doi "https://doi.org/10.1155/2022/5633096" @default.
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