1.Design and application of a fixation device for experimental rat.
Xuetao ZHANG ; Qianlan ZENG ; Zhen WANG ; Yalu WANG ; Hanxiao WANG ; Xin WU ; Kun WANG ; Shuai CUI ; Litao LI ; Meiqi ZHOU ; Shengbing WU
Chinese Acupuncture & Moxibustion 2024;44(11):1351-1354
A fixation device for experimental rat in moxibustion was developed. Using this device, the points for moxibustion can be fully exposed, and the temperature of moxibustion be relatively constant. This fixation device consists of three parts: fixation seat, fixation clip and moxa-stick holder; characterized as the flexible fixation and easy operation. The device is advantaged at simultaneous operation of moxibustion at many points and supports the point combinations. It makes up for the shortcomings of the existing fixation devices, reduces the workload of moxibustion in experimental rat and improves the work efficiency and experimental safety of experimenters.
Animals
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Rats
;
Moxibustion/methods*
;
Equipment Design
;
Acupuncture Points
;
Humans
;
Male
;
Rats, Sprague-Dawley
2.Anti-tumor activities and apoptotic mechanism of ribosome-inactivating proteins.
Meiqi ZENG ; Manyin ZHENG ; Desheng LU ; Jun WANG ; Wenqi JIANG ; Ou SHA
Chinese Journal of Cancer 2015;34(8):325-334
Ribosome-inactivating proteins (RIPs) belong to a family of enzymes that attack eukaryotic ribosomes and potently inhibit cellular protein synthesis. RIPs possess several biomedical properties, including anti-viral and anti-tumor activities. Multiple RIPs are known to inhibit tumor cell proliferation through inducing apoptosis in a variety of cancers, such as breast cancer, leukemia/lymphoma, and hepatoma. This review focuses on the anti-tumor activities of RIPs and their apoptotic effects through three closely related pathways: mitochondrial, death receptor, and endoplasmic reticulum pathways.
Animals
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Antineoplastic Agents
;
Apoptosis
;
Endoplasmic Reticulum
;
Humans
;
Mitochondria
;
Plant Proteins
;
Receptors, Death Domain
;
Ribosome Inactivating Proteins
;
Ribosomes
3.Effect of EGFR-TKI retreatment following chemotherapy for ad-vanced non-small cell lung cancer patients who underwent EG-FR-TKI
Guohao XIA ; Yvn ZENG ; Ying FANG ; Shaorong YU ; Li WANG ; Meiqi SHI ; Weili SUN ; Xinen HUANG ; Jia CHEN ; Jifeng FENG
Chinese Journal of Clinical Oncology 2014;(22):1454-1458
Objective: Non-small-cell lung cancer (NSCLC) patients with epidermal growth factor receptor (EGFR)-activating mutations have higher response rate and more prolonged survival following treatment with single-agent EGFR tyrosine kinase inhibitor (EGFR-TKI) compared with patients with wild-type EGFR. However, all patients treated with reversible inhibitors develop acquired re-sistance over time. The mechanisms of resistance are complicated. The lack of established therapeutic options for patients after a failed EGFR-TKI treatment poses a great challenge to physicians in managing this group of lung cancer patients. This study evaluates the in-fluence of EGFR-TKI retreatment following chemotherapy after failure of initial EGFR-TKI within at least six months on NSCLC pa-tients. Methods:The data of 27 patients who experienced treatment failure from their initial use of EGFR-TKI within at least 6 months were analyzed. After chemotherapy, the patients were retreated with EGFR-TKI (gefitinib 250 mg qd or erlotinib 150 mg qd), and the tumor progression was observed. The patients were assessed for adverse events and response to therapy. Targeted tumor lesions were as-sessed with CT scan. Results:Of the 27 patients who received EGFR–TKI retreatment, 1 (3.7%) patient was observed in complete re-sponse (CR), 8 (29.6%) patients in partial response (PR), 14 (51.9%) patients in stable disease (SD), and 4 (14.8%) patients in progres-sive disease (PD). The disease control rate (DCR) was 85.2%(95%CI=62%-94%). The median progression-free survival (mPFS) was 6 months (95%CI=1-29). Of the 13 patients who received the same EGFR-TKI, 1 patient in CR, 3 patients in PR, 8 patients in SD, and 2 patients in PD were observed. The DCR was 84.6%, and the mPFS was 5 months. Of the 14 patients who received another EG-FR-TKI, 0 patient in CR, 6 patients in PR, 6 patients in SD, and 2 patients in PD were observed. The DCR was 85.7%, and the mPFS was 9.5 months. Significant difference was found between the 2 groups in progression-free survival but not in response rate or disease control rate. Conclusion:Retreatment of EGFR-TKIs can be considered an option after failure of chemotherapy for patients who were
previously controlled by EGFR-TKI treatment.

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