Changes in TgAb and TPOAb titers are greater in thyrotoxicosis than isolated hypothyroidism induced by PD-1 blockade

IF 1.3 4区 医学 Q4 ENDOCRINOLOGY & METABOLISM Endocrine journal Pub Date : 2024-04-11 DOI:10.1507/endocrj.ej23-0480
Ayana Yamagami, Shintaro Iwama, Tomoko Kobayashi, Xin Zhou, Yoshinori Yasuda, Takayuki Okuji, Masaaki Ito, Tetsushi Izuchi, Masahiko Ando, Takeshi Onoue, Takashi Miyata, Mariko Sugiyama, Daisuke Hagiwara, Hidetaka Suga, Ryoichi Banno, Hiroshi Arima
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Abstract

Anti-thyroglobulin antibodies (TgAb) and/or anti-thyroid peroxidase antibodies (TPOAb) positivity at baseline is a risk marker for thyroid immune-related adverse events (thyroid-irAEs) in anti-programmed cell death-1 antibody (PD-1-Ab) treatment; however, it is unknown if TgAb and TPOAb titers are associated with clinical characteristics of thyroid-irAEs. Among 586 patients treated with PD-1-Ab at Nagoya University Hospital between 2 November 2015 and 30 September 2021, 57 patients developed thyroid-irAEs (thyrotoxicosis [n = 38]; hypothyroidism without prior thyrotoxicosis {isolated hypothyroidism} [n = 19]) in whom thyroid function, and TgAb and TPOAb titers were determined at baseline and at the onset. The changes in TgAb (median, 54.8 vs. 0.2 IU/mL; p = 0.002) and TPOAb titers (31.6 vs. 0 IU/mL; p = 0.032) from baseline to onset of developing thyroid-irAEs were greater in patients with thyrotoxicosis than patients with isolated hypothyroidism. Higher TgAb and TPOAb titers, and the TgAb titer at baseline were associated with an earlier onset of thyrotoxicosis and higher peak free thyroxine levels, respectively. Twenty-eight patients who developed hypothyroidism after thyrotoxicosis had higher TgAb (54.5 vs. 10.7 IU/mL; p = 0.011) and TPOAb titers at baseline (46.1 vs. 9.0 IU/mL; p < 0.001) and greater changes in TgAb (61.7 vs. 7.8 IU/mL; p = 0.025) and TPOAb titers (52.8 vs. –0.8 IU/mL; p < 0.001) than patients who did not develop hypothyroidism. The TgAb titer at baseline and changes in the TgAb and TPOAb titers were greater in patients with thyrotoxicosis than patients with isolated hypothyroidism, suggesting that the magnitude of the thyroid autoimmune response reflects the clinical types of thyroid-irAEs.

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与PD-1阻断剂诱发的孤立性甲状腺功能减退症相比,甲亢患者的TgAb和TPOAb滴度变化更大
抗甲状腺球蛋白抗体(TgAb)和/或抗甲状腺过氧化物酶抗体(TPOAb)基线阳性是抗程序性细胞死亡-1抗体(PD-1-Ab)治疗中甲状腺免疫相关不良事件(thyroid-irAEs)的风险标志物;然而,TgAb和TPOAb滴度是否与甲状腺irAEs的临床特征相关尚不清楚。名古屋大学医院在2015年11月2日至2021年9月30日期间接受PD-1-Ab治疗的586名患者中,有57名患者出现了甲状腺irAEs(甲状腺毒症[n = 38];无甲状腺毒症的甲状腺功能减退症{孤立性甲状腺功能减退症}[n = 19]),其中有5名患者的TgAb和TPOAb滴度与甲状腺irAEs的临床特征相关。[n = 19]),在基线和发病时测定其甲状腺功能、TgAb 和 TPOAb 滴度。与孤立性甲减患者相比,甲亢患者的TgAb(中位数,54.8 vs. 0.2 IU/mL;p = 0.002)和TPOAb滴度(31.6 vs. 0 IU/mL;p = 0.032)从基线到甲状腺irAEs发病时的变化更大。较高的TgAb和TPOAb滴度以及基线时的TgAb滴度分别与甲状腺毒症发病较早和游离甲状腺素峰值水平较高有关。甲亢后出现甲减的28名患者在基线时的TgAb(54.5 vs. 10.7 IU/mL;p = 0.011)和TPOAb滴度较高(46.1 vs. 9.0 IU/mL;p < 0.001)和 TgAb 滴度(61.7 vs. 7.8 IU/mL;p = 0.025)和 TPOAb 滴度(52.8 vs. -0.8 IU/mL;p <;0.001)的更大变化。甲亢患者的基线TgAb滴度以及TgAb和TPOAb滴度的变化均大于孤立性甲减患者,这表明甲状腺自身免疫反应的程度反映了甲状腺irAEs的临床类型。
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来源期刊
Endocrine journal
Endocrine journal 医学-内分泌学与代谢
CiteScore
4.30
自引率
5.00%
发文量
224
审稿时长
1.5 months
期刊介绍: Endocrine Journal is an open access, peer-reviewed online journal with a long history. This journal publishes peer-reviewed research articles in multifaceted fields of basic, translational and clinical endocrinology. Endocrine Journal provides a chance to exchange your ideas, concepts and scientific observations in any area of recent endocrinology. Manuscripts may be submitted as Original Articles, Notes, Rapid Communications or Review Articles. We have a rapid reviewing and editorial decision system and pay a special attention to our quick, truly scientific and frequently-citable publication. Please go through the link for author guideline.
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