| ORIGINAL ARTICLE |
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| Year : 2016 | Volume
: 29
| Issue : 2 | Page : 379-382 |
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Arginase-1 enzyme in B-cell non-Hodgkin lymphoma
Khaled A Ali, Maha A Al-Basuni, Mohamed A Alftooh, Wafaa M Radwan, Hanem M Badwy
Department of Clinical Pathology, Faculty of Medicine, Menoufia University, Menoufia, Egypt
Correspondence Address:
Hanem M Badwy
Department of Clinical Pathology, Faculty of Medicine, Menoufia University, Quesna, Menoufia, 32631
Egypt
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/1110-2098.192422
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Objectives:
Assessment of arginase-1 enzyme in B-cell non-Hodgkin lymphoma (NHL).
Background:
Arginase-1 enzyme is involved in the mechanism of immune suppression in NHL, which affects both the treatment outcome and the patient survival.
Patients and methods:
This study was carried out on 42 NHL patients attending the Oncology Department, Menoufia University Hospitals. Of the 42 NHL cases, 16 were relapsed or refractory (eight refractory: five cases relapsed within 1 year, two cases relapsed after 3 years, and one case after 4 years) and 26 were newly diagnosed cases. Follow-up for 24 months was carried out for the new cases. Sixteen of them achieved remission, two cases were relapsed (one case relapsed after 6 months and the other case relapsed after 9 months), whereas eight cases were lost to follow-up. Twenty age-matched and sex-matched individuals were selected as controls. A peripheral blood sample was drawn, and arginase-1 enzyme was analyzed by the enzyme-linked immunosorbent assay method.
Results:
The plasma level of arginase-1 enzyme was significantly increased in cases compared with controls. It was also increased in stages IV and III compared with stages I and II. Arginase-1 has the highest ratio in DLBCL compared with follicular lymphoma, which is higher than other indolent lymphomas. After patients were followed up for 2 years, the statistical data showed a highly significant difference in arginase-1 between patients with relapsed disease and patients with disease remission.
Conclusion:
The arginase-1 pathway is a main mechanism in the immune suppression in NHL as arginase-1 is increased in NHL patients. It is also increased in advanced stages of the disease and in a more aggressive pathology and in refractory and relapsed disease. |
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