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对标准治疗抵抗的复发宫颈癌患者的HPV16/18 E7脉冲树突细胞疫苗接种
HPV16/18 E7-pulsed dendritic cell vaccination in cervical cancer patients with recurrent disease refractory to standard treatment modalities
Santin AD, Bellone S, Palmieri M  2009/5/27 10:50:40 
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Gynecol Oncol, 2006,
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Abstract

Objective:

To evaluate the potential of human papillomavirus (HPV) type 16 and 18 E7 antigen-loaded autologous dendritic cells (DC) as a therapeutic cellular vaccine in a case series of cervical cancer patients harboring recurrent/metastatic disease refractory to standard treatment modalities.

Methods:

Autologous monocyte-derived DC were pulsed with recombinant HPV16 E7 or HPV18 E7 oncoproteins and administered to 4 cervical cancer patients. Vaccinations were followed by subcutaneous administration twice daily of low doses of human recombinant interleukin-2 (1 × 106 IU/m2) from day 3 to day 7. Safety, toxicity, delayed type hypersensitivity reactions (DTH), clinical responses, and induction of serological and cellular immunity against HPV16/18 E7 were monitored.

Results:

The vaccine was well-tolerated in all patients and no local or systemic side effects or toxicity were recorded. Three out of four patients were found to be significantly immunocompromised before starting the vaccination treatment, as assessed by DTH with a panel of recall antigens. Specific humoral and cellular CD4+ T cell responses to the E7 vaccine were detected in 2 patients, as detected by ELISA and by IFN-γ ELISpot assays, respectively. Increased numbers of E7-specific IFN-γ secreting CD8 + T cells were detected in all patients after vaccination. Swelling and induration (i.e., a positive DTH response) to the intradermal injection of HPV E7 oncoprotein and/or irradiated autologous tumor cells were detected in two patients after six vaccinations. No objective clinical responses were observed. However, both patients who developed a positive DTH to the vaccine experienced a slow tumor progression (i.e., 13 months survival) while DTH unresponsive patients died within 5 months from the beginning of therapy.

Conclusions:

Autologous DC pulsed with HPV16/18 E7 proteins can induce systemic B and T cell responses in patients unresponsive to standard treatment modalities. However, treatment-induced immunosuppression may impose severe limitations on the efficacy of active vaccination strategies in late stage cervical cancer patients. DC-based vaccination trials are warranted in immunocompetent cervical cancer patients with early stage disease and/or limited tumor burden, and at significant risk for tumor recurrence or disease progression.
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疾病资源中心  疾病资源中心
病例分析 <span class="ModTitle_Intro_Right" id="EPMI_Home_MedicalCases_Intro_div" onclick="javascript:window.location='http://www.elseviermed.cn/tabid/127/Default.aspx'" onmouseover="javascript:document.getElementById('EPMI_Home_MedicalCases_Intro_div').style.cursor='pointer';document.getElementById('EPMI_Home_MedicalCases_Intro_div').style.textDecoration='underline';" onmouseout="javascript:document.getElementById('EPMI_Home_MedicalCases_Intro_div').style.textDecoration='none';">[栏目介绍]</span>  病例分析 [栏目介绍]

 王燕燕 王曙

上海交通大学附属瑞金医院内分泌科

患者,女,69岁。2009年1月无明显诱因下出现乏力,当时程度较轻,未予以重视。2009年3月患者乏力症状加重,尿色逐渐加深,大便习惯改变,颜色变淡。4月18日入我院感染科治疗,诉轻度头晕、心慌,体重减轻10kg。无肝区疼痛,无发热,无腹痛、腹泻、腹胀、里急后重,无恶性、呕吐等。入院半月前于外院就诊,查肝功能:ALT 601IU/L,AST 785IU/L,TBIL 97.7umol/L,白蛋白 41g/L,甲状腺功能:游离T3 30.6pmol/L,游离T4 51.9pmol/L,心电图示快速房颤。
 

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