Purohit S, Ferris DG, Alvarez M, Tran PMH, Tran LKH, Mysona DP, Hopkins D, Zhi W, Dun B, Wallbillich JJ, Cummings RD, Wang PG, She JX. Better survival is observed in cervical cancer patients positive for specific anti-glycan antibodies and receiving brachytherapy.
Gynecol Oncol 2020;
157:181-187. [PMID:
31955861 DOI:
10.1016/j.ygyno.2020.01.014]
[Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 01/03/2020] [Accepted: 01/06/2020] [Indexed: 02/03/2023]
Abstract
OBJECTIVE
To measure anti-glycan antibodies (AGA) in cervical cancer (CC) patient sera and assess their effect on therapeutic outcome.
PATIENTS AND METHODS
Serum AGA was measured in 276 stage II and 292 stage III Peruvian CC patients using a high content and throughput Luminex multiplex glycan array (LMGA) containing 177 glycans. Association with disease-specific survival (DSS) and progression free survival (PFS) were analyzed using Cox regression.
RESULTS
AGAs were detected against 50 (28.3%) of the 177 glycans assayed. Of the 568 patients, 84.5% received external beam radiation therapy (EBRT) plus brachytherapy (BT), while 15.5% only received EBRT. For stage-matched patients (Stage III), receiving EBRT alone was significantly associated with worse survival (HR 6.4, p < 0.001). Stage III patients have significantly worse survival than Stage II patients after matching for treatment (HR = 2.8 in EBRT+BT treatment group). Furthermore, better PFS and DSS were observed in patients positive for AGA against multiple glycans belonging to the blood group H, Lewis, Ganglio, Isoglobo, lacto and sialylated tetrarose antigens (best HR = 0.49, best p = 0.0008).
CONCLUSIONS
Better PFS and DSS are observed in cervical cancer patients that are positive for specific antiglycan antibodies and received brachytherapy.
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