3.The path forward in prostate cancer therapeutics.
Jeanny B ARAGON-CHING ; Ravi A MADAN
Asian Journal of Andrology 2018;20(3):213-214
The last decade has seen remarkable advances in the treatment of prostate cancer. Until 2010, only docetaxel had demonstrated the ability to improve the survival in metastatic castration-resistant prostate cancer (mCRPC). While effective, many men were reluctant to get treatment with docetaxel because of the perceived toxicity, thereby further limiting the benefit of the one available and effective therapy. Remarkably, within the last 8 years, the field has seen a multitude of therapies that demonstrate an ability to extend survival for men with prostate cancer. Abiraterone and enzalutamide demonstrated the importance of the androgen axis in propelling prostate cancer growth. Sipuleucel-T was immunotherapy's entry into the evolving prostate cancer armamentarium, as the therapeutic cancer vaccine established an ability to extend survival despite an apparent lack of short-term effect on progression-free survival and prostate-specific antigen (PSA). Radium-223 built on the palliative success of previous radiopharmaceuticals, but this alpha-emitting agent importantly had limited hematologic-related toxicity and was associated with a survival advantage, unlike its in-class predecessors. Cabazitaxel also emerged as a second-line chemotherapy option in patients who had already progressed on docetaxel.
Antineoplastic Agents/therapeutic use*
;
Antineoplastic Agents, Immunological/therapeutic use*
;
Humans
;
Male
;
Molecular Targeted Therapy
;
Prostatic Neoplasms/drug therapy*
4.Immune-Related Pancreatitis Caused by Immune Checkpoint Inhibitor Nivolumab:Report of One Case.
Feng XU ; Zhu SHEN ; Hong TAO ; Zhu ZHU ; Jia-Long TAO ; Zheng-Yang FENG
Acta Academiae Medicinae Sinicae 2023;45(2):351-354
In recent years,great progress has been achieved in the application of immune checkpoint inhibitors (ICI) in tumor immunotherapy.However,a variety of adverse reactions induced by ICI have been reported.Despite the high overall incidence of adverse reactions caused by ICI,some adverse reactions,such as immune-related pancreatitis,are rare in clinical practice.In this paper,a case of immune-related pancreatitis after treatment of advanced gastric cancer with nivolumab was identified.We analyzed the cause,treatment,incidence,and risk factors of the adverse reaction,aiming to improve the clinical diagnosis,treatment,and safe medication of rare adverse reactions associated with ICI.
Humans
;
Nivolumab/adverse effects*
;
Immune Checkpoint Inhibitors/adverse effects*
;
Antineoplastic Agents, Immunological/adverse effects*
;
Pancreatitis/drug therapy*
;
Stomach Neoplasms
5.Progress of Bevacizumab in Malignant Pleural Effusion Caused by Non-small Cell Lung Cancer.
Chinese Journal of Lung Cancer 2019;22(2):118-124
Lung cancer is the most commonly diagnosed cancer worldwide. Malignant pleural effusion (MPE) caused by advanced lung cancer seriously affect the patients' quality of life and prognosis. The management of MPE includes thoracentesis, pleurodesis, indwelling pleural catheters and drug perfusion in pleural cavity. Vascular endothelial growth factor (VEGF) and its receptor are a group of important ligands and receptors that affect angiogenesis. They are the main factors controlling angiogenesis, and they play an important role in the formation of MPE. Bevacizumab is a recombinant humanized VEGF monoclonal antibody, competitively binding to endogenous VEGF receptor. Bevacizumab can inhibit new blood vessel formation, reduce vascular permeability, prevent pleural effusion accumulation and slow the growth of cancers. This review aims to discuss the progress of bevacizumab in the treatment of MPE caused by non-small cell lung cancer (NSCLC), and explore the clinical application, efficacy, safety and future direction of bevacizumab.
.
Antineoplastic Agents
;
therapeutic use
;
Antineoplastic Agents, Immunological
;
therapeutic use
;
Carcinoma, Non-Small-Cell Lung
;
complications
;
pathology
;
Humans
;
Pleural Effusion, Malignant
;
drug therapy
;
Pleural Neoplasms
;
drug therapy
;
secondary
6.Antibody-drug conjugates in HER2-positive breast cancer.
Lixi LI ; Di ZHANG ; Binliang LIU ; Dan LV ; Jingtong ZHAI ; Xiuwen GUAN ; Zongbi YI ; Fei MA
Chinese Medical Journal 2021;135(3):261-267
Antibody-drug conjugates (ADCs) combine the high specificity of monoclonal antibodies with the high anti-tumor activity of small molecular cytotoxic payloads. The anti-tumor activity of ADCs is mainly achieved by the direct blocking of the receptor by monoclonal antibodies, direct action and bystander effect of cytotoxic drugs, and antibody-dependent cell-mediated cytotoxicity and complement-dependent cytotoxicity. ADCs have been used in adjuvant therapy and rescue treatment of human epidermal receptor 2 (HER2)-positive breast cancer, greatly improving the prognosis of breast cancer patients. Several ongoing clinical trials of ADC for breast cancer and other solid tumors proved the potential of ADCs will provide more promising treatment options for patients with malignant tumors. This review introduces the mechanism and latest clinical progress of ADC drugs approved for HER2-positive breast cancer to guide clinical practice and conduct research.
Antineoplastic Agents/therapeutic use*
;
Antineoplastic Agents, Immunological/therapeutic use*
;
Breast Neoplasms/drug therapy*
;
Female
;
Humans
;
Immunoconjugates/therapeutic use*
;
Receptor, ErbB-2
7.Current Progress and Future Developments of Antibody Drug Conjugates in Lung Cancer.
Chinese Journal of Lung Cancer 2022;25(7):468-476
Antibody drug conjugates (ADCs) are a novel class of anti-cancer drugs, which combined the specificity of monoclonal antibodies with the cytotoxic palyload via the linkers. Many ADCs have not only verified impressive activity in a variety of cancers, including breast cancer and hematological system tumors, but also in lung cancer. The aim of this study was to provide informations for practice by summarizing the mechanism of action, clinical application and problems and challenges of ADCs.
.
Antibodies, Monoclonal/therapeutic use*
;
Antineoplastic Agents/therapeutic use*
;
Antineoplastic Agents, Immunological/therapeutic use*
;
Humans
;
Immunoconjugates/therapeutic use*
;
Lung Neoplasms/drug therapy*
;
Neoplasms/drug therapy*
9.Preliminary Study on Screening and Identification of Lewis a Antigen Mimic Epitope in Alpaca Phage Display Nanobody Library.
Xiao-Long ZHONG ; Lu YANG ; Jie ZHANG ; Li-Ping SUN ; Ming-Zi MA ; Bin FAN ; Wei SHANG ; Yuan-Shuai HUANG ; De-Qing WANG
Journal of Experimental Hematology 2022;30(3):877-883
OBJECTIVE:
To establish a new method for synthesizing Lewis blood group antigens, that is, the mimotopes of Lewis blood group antigens were screened by using an alpaca phage display nanobody library.
METHODS:
We selected mimotopes of the Lewis a (lea) antigen by affinity panning of an alpaca phage display nanobody library using a monoclonal anti-lea antibody. Enzyme-linked immunosorbent assay (ELISA) was used to test the affinity of the positive clones for the monoclonal anti-lea antibody, and the high-affinity positive clones were selected for sequencing and synthesis. Finally, the sensitivity, specificity and reactivity of the synthesized lea mimotope in clinical samples were verified by ELISA.
RESULTS:
A total of 96 phage clones were randomly selected, and 24 were positive. Fourteen positive clones with the highest affinity were selected for sequencing. The result showed that there were 5 different sequences, among which 3 sequences with the highest frequency, largest difference and highest affinity were selected for expression and synthesis. The sensitivity and specificity of lea mimic antigen by ELISA showed that, the minimum detection limit of gel microcolumn assay (GMA) and ELISA method were 25 times different, and the lea mimic antigen had no cross reacted with the other five unrelated monoclonal antibodies(P<0.001). Finally, 30 clinical plasma samples were analyzed. The mean absorbance of the 15 positive plasma samples was significantly higher than that of the 15 negative plasma samples (P=0.02). However, the positive signal values of the clinical samples were much lower than those of the monoclonal antibodies.
CONCLUSION
A new method of screening lea mimic antigen by using alpaca phage nanoantibody library has been established, which is expected to realize the screening of lea mimotopes, thus realizing the application of high-sensitivity detection methods such as ELISA and chemiluminescence in blood group antibody identification.
Animals
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Antibodies, Monoclonal
;
Antineoplastic Agents, Immunological
;
Bacteriophages
;
Blood Group Antigens
;
Camelids, New World
;
Enzyme-Linked Immunosorbent Assay/methods*
;
Epitopes
;
Humans
;
Lewis Blood Group Antigens
;
Peptide Library
10.Progress of Neoadjuvant Immunotherapy for Non-small Cell Lung Cancer.
Chao GUO ; Jiaqi ZHANG ; Shanqing LI
Chinese Journal of Lung Cancer 2022;25(7):524-533
Neoadjuvant immunotherapy, including neoadjuvant single- or dual-drug immunotherapy or combined immunotherapy with chemotherapy or radiotherapy, has witnessed a rapid development in non-small cell lung cancer. Clinical trials exhibited the encouraging pathological responses and certain clinical benefits in selected patients, with tolerable toxicity. Nivolumab with chemotherapy has been approved by Food and Drug Administration (FDA) as the first immunotherapy-based treatment for non-small cell lung cancer in the neoadjuvant treatment setting. There is the need for further evaluation of long-term efficacy, side effects or surgical issues for neoadjuvant immunotherapy in non-small cell lung cancer.
.
Antineoplastic Agents, Immunological/therapeutic use*
;
Carcinoma, Non-Small-Cell Lung/pathology*
;
Humans
;
Immunotherapy/methods*
;
Lung Neoplasms/pathology*
;
Neoadjuvant Therapy
;
Nivolumab/therapeutic use*