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- Title
Good prognosis for follicular lymphoma with estrogen receptor α-positive follicular dendritic cells.
- Authors
Ohe, Rintaro; Meng, Hong‐Xue; Yamada, Akane; Ye Aung, Naing; Kabasawa, Takanobu; Tamura, Yuka; Utsunomiya, Aya; Tamazawa, Nobuyuki; Kawamura, Ichiro; Kitaoka, Takumi; Suzuki, Kazushi; Yanagiya, Ryo; Toubai, Tomomi; Ishizawa, Kenichi; Yamakawa, Mitsunori; Meng, Hong-Xue
- Abstract
Follicular lymphoma (FL) has a meshwork of follicular dendritic cells (FDCs). We previously demonstrated the presence of estrogen receptor alpha (ERα)+ CD23+ FDCs in grades 1-2 FL. The significance of FDCs as a prognostic factor in FL remains unknown. The current study aimed to compare clinicopathological features, including prognosis, between FL with and without ERα+ FDCs. This study evaluated the clinicopathological significance of ERα expression in 70 FL patients by immunostaining. The presence of ERα mRNA on FDCs from 5 FL patients was confirmed by CD21/ERα double staining (immunohistochemistry and in situ hybridization). We defined patients with frequent ERα expression as the ERαhigh group and those with infrequent ERα expression as the ERαlow group. Thirty-two patients were assigned to the ERαhigh group (45.7%), and 38 patients were assigned to the ERαlow group (54.3%). Both overall survival (OS) and progression-free survival (PFS) were significantly better in the ERαhigh group than in the ERαlow group (OS, log-rank, P = .0465; PFS, log-rank, P = .0336). Moreover, high ERα expression on FDCs was an independent prognostic factor for OS in both the univariate ([hazard ratio] HR, 0.163; P = .0260) and multivariate (HR, 0.050; P = .0188) analyses and for PFS in both the univariate (HR, 0.232; P = .0213) and multivariate (HR, 0.084; P = .0243) analyses. ERα mRNA expression was detected in CD21+ FDCs within the neoplastic follicles of FL patients. In conclusion, a neoplastic follicular microenvironment with ERα-positive FDCs might affect the grade and presence of the follicular pattern of FL and improve patient prognosis.
- Subjects
FOLLICULAR dendritic cells; ESTROGEN receptors; PROGRESSION-free survival; LYMPHOMAS; IN situ hybridization
- Publication
Hematological Oncology, 2020, Vol 38, Issue 3, p293
- ISSN
0278-0232
- Publication type
Academic Journal
- DOI
10.1002/hon.2730