Serum Tissue Polypeptide Specific Antigen (TPS) in Locoregional Failure and Distant Metastasis of Cervical Carcinoma
PITTAYAPOOM PATTARANUTAPORN,M.D.*, NANTAKAN IEUMW ANANONTHACHAI, M.D.*, YAOWALAK CHANSILPA, M.D.*, MATHUR OS SUKKASEM, M.D.*
Affiliation : * Division of Radiation Oncology, Department of Radiology, Faculty of Medicine Siriraj Hospital, Mahidol University. Bangkok 10700, Thailand.
Tissue polypeptide specific antigen (TPS) was measured by the ELISA Technique in the sera of 51 patients with locoregional failure and metastasis of squamous cell car- cinoma of the cervix in order to evaluate the serum level of TPS in known cases of metasta- sis and recurrence. There were 32 cases of local residual or recurrent disease and 19 cases of distant metastasis, including lymph nodes (paraaortic and supraclavicular lymph node) and visceral metastasis. The range of TPS levels in the locoregional failure group were 38.2 - 355.2 j1ll with a mean of 312.5 and 35.7 - 4822 f.l/1 with a mean of 833.36 f.l/1 in the metasta- tic group. With the cut-off value of 90 ~Jil, the rates of TPS elevation were 27 in 32 cases (84.377C) of the loco-regional failure group and 16 in 19 cases (84.21 o/c) of the metastatic group. Among the metastatic group, the mean of TPS level in visceral metastasis was much higher than the group of lymph node metastasis ( 1518.4 ~J/1 vs 215.1 f.l/1 ). TPS level might be used as the follow-up guide for prediction of locoregional failure and metastasis in squamous cell carcinoma of the cervix after the completion of the treatment. In patients with a significantly high level of serum TPS, the distant metastases or local recurrence should be searched for. However, a prospective study of TPS levels in cervical cancer patients after completion of treatment should be done in order to evaluate the sensitivity and specificity of this tumor marker.
Keywords : TPS, Cervical Cancer
