scholarly journals Effect of Anti-Programmed Cell Death Protein-1 Antibody Combined with Paclitaxel on Cervical Cancer via Phosphoinositide 3-Kinase/Protein Kinase B Pathway in Rats

2021 ◽  
Vol 83 (4) ◽  
Author(s):  
Chong Shi ◽  
G. Zhang ◽  
Liyan Peng ◽  
K. Zhang
2017 ◽  
Vol 5 (3) ◽  
pp. 126-133
Author(s):  
Markus Vincent Heppt ◽  
Cecilia Dietrich ◽  
Saskia Graf ◽  
Thomas Ruzicka ◽  
Julia Tietze ◽  
...  

Das Melanom ist eine häufige Form von Hautkrebs mit hoher Tendenz zur Metastasenbildung. Tyrosinkinase-Inhibitoren, die zielgerichtet in den MAPK (mitogen-activated protein kinase)-Signaltransduktionsweg eingreifen, sowie die Immun-Checkpoint-Blockade haben in jüngster Zeit die Behandlung des nicht-resezierbaren und des metastasierten Melanoms revolutioniert. Doch erworbene Resistenzen und primäres Nichtansprechen auf diese Therapien machen neuartige Behandlungsstrategien und Kombinationsansätze erforderlich. Das Ziel dieser Übersichtsarbeit ist es, einen kurzen und aktuellen Überblick über das klinische Management des Melanoms und die gegenwärtige Studiensituation zu geben. Die Arbeit enthält Zusammenfassungen der relevantesten Studien zu BRAF- und MEK-Inhibitoren sowie zu Antikörpern gegen CTLA-4 (T-lymphocyte-associated protein 4) und PD-1 (programmed cell death protein 1). Während die meisten Wirkstoffe schon in Monotherapie eine gute antitumorale Wirksamkeit zeigen, sind durch Kombinationstherapien mit zugelassenen und in der Entwicklung befindlichen Wirkstoffen weitere Verbesserungen erzielt worden. Wir besprechen hier laufende Studien und evaluieren Ansätze, die künftig eine noch höhere Wirksamkeit bei geringerer Toxizität gewährleisten könnten. Übersetzung aus Oncol Res Treat 2016;39:635-642 (DOI:10.1159/000448904)


2020 ◽  
Vol 8 (09) ◽  
pp. 77-84
Author(s):  
Fawzaan Hashmi

Projects of cancer diagnostics are significantly variegated. Manifestly, however, understanding molecular biology can accomplish a great deal in the midst of any diagnostic strategy. This report will seek to indicate some of the key bases of molecular biomedical study, including the foundations of cell growth, cell death, and genetics, together with specific instances of protein classification, as they pertain to cancer. Methodologies of cancer analysis and treatment that cover similar molecular ground will then be elucidated. This will all serve to anchor an examination of the MET/phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT)/mechanistic target of rapamycin (mTOR) pathway, linked to problematic cell proliferation in oncogenesis.


2020 ◽  
Vol 19 (2) ◽  
pp. 206-210
Author(s):  
Feng Chen ◽  
Bei Zhang

Lupeol exhibits multiple pharmacological activities including, anticancerous, anti-inflammatory, and antioxidant. The aim of this study was to explore the anticancerous activity of lupeol on ovarian cancer cells and examine its mechanism of action. To this end, increasing concentrations of lupeol on cell viability, cell cycle, and apoptosis in Caov-3 cells were evaluated. Lupeol inhibited cell viability, induced G1 phase arrest in cell cycle, increased cell apoptosis, and inhibited the ratio of phospho-Akt/protein kinase B and phospho-mammalian target of rapamycin/mammalian target of rapamycin. In conclusion, these data suggest that lupeol may play a therapeutic role in ovarian cancer.


Author(s):  
Lifang Zhang ◽  
Yu Zhao ◽  
Quanmei Tu ◽  
Xiangyang Xue ◽  
Xueqiong Zhu ◽  
...  

Background: Cervical cancer induced by infection with human papillomavirus (HPV) remains a leading cause of mortality for women worldwide although preventive vaccines and early diagnosis have reduced morbidity and mortality. Advanced cervical cancer can only be treated with either chemotherapy or radiotherapy but outcomes are poor. The median survival for advanced cervical cancer patients is only 16.8 months. Methods: We undertook a structural search of peer-reviewed published studies based on 1). Characteristics of programmed cell death ligand-1/programmed cell death-1(PD-L1/PD-1) expression in cervical cancer and upstream regulatory signals of PD-L1/PD-1 expression, 2). The role of the PD-L1/PD-1 axis in cervical carcinogenesis induced by HPV infection and 3). Whether the PD-L1/PD-1 axis has emerged as a potential target for cervical cancer therapies. Results: One hundred and twenty-six published papers were included in the review, demonstrating that expression of PD-L1/PD-1 is associated with HPV-caused cancer, especially with HPV 16 and 18 which account for approximately 70% of cervical cancer cases. HPV E5/E6/E7 oncogenes activate multiple signaling pathways including PI3K/AKT, MAPK, hypoxia-inducible factor 1α, STAT3/NF-kB and MicroRNAs, which regulate PD-L1/PD-1 axis to promote HPV-induced cervical carcinogenesis. The PD-L1/PD-1 axis plays a crucial role in immune escape of cervical cancer through inhibition of host immune response. creating an "immune-privileged" site for initial viral infection and subsequent adaptive immune resistance, which provides a rationale for therapeutic blockade of this axis in HPV-positive cancers. Currently, Phase I/II clinical trials evaluating the effects of PD-L1/PD-1 targeted therapies are in progress for cervical carcinoma, which provide an important opportunity for the application of anti-PD-L1/anti-PD-1 antibodies in cervical cancer treatment. Conclusion: Recent research developments have led to an entirely new class of drugs using antibodies against the PD-L1/PD-1 thus promoting the body’s immune system to fight the cancer. The expression and roles of the PD-L1/ PD-1 axis in the progression of cervical cancer provide great potential for using PD-L1/PD-1 antibodies as a targeted cancer therapy.


Author(s):  
Anthony Marotta ◽  
Kuljit Parhar ◽  
Rajinder Hundal ◽  
Vincent Duronio ◽  
Baljinder Salh

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