Autophagy Bladder Cancer

Bladder Cancer Clinical Trial

Official title:

Identification of Novel Autophagy Markers in Bladder Cancer Patients

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT03254888
• Other study ID #: ABC
• Status: Not yet recruiting
• Start date: December 1, 2020
• Est. completion date: December 31, 2021

Study information

• Verified date: July 2020
• Source: Assiut University
• Contact: MahaAli Essam-Eldeen Mohamed, lecturer
• Phone: 00201091570963
• Email: mahabadari[@]hotmail.com
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

• Bladder cancer is the most common malignancy of the urinary tract. It represents the 7th most commonly diagnosed cancer in male population worldwide and drops to the 11th when both genders are considered . According to the American cancer society's estimates of bladder cancer in 2017, the number of the new cases of bladder cancer is 79,030, and the mortality figures reached 16,870 .

Description:

• In Egypt, Bladder Cancer is the most prevalent malignancy among Egyptian males (16%) producing more than 7900 deaths annually . The majority of patients with bladder cancer about (70-80%) present with non-muscle invasive bladder cancer .

• Autophagy is a highly conserved catabolic process that degrades cellular organelles and proteins to maintain cellular biosynthesis during stress ; cancer cells induced autophagy to counteract with anticancer therapy by helping them to evade apoptotic pathway .Autophagy is achieved by many autophagy-related genes .

• Previous studies found that human bladder cancer cell lines exhibit high basal level of autophagic activity that may contribute to resistance to current anticancer treatment, so targeting basal autophagy may help to develop novel therapeutic strategies . Autophagy is potently induced by activating transcription factor 6(Endoplasmic Reticulum stress marker) , and Malondialdehyde (oxidative stress marker) .

• Recently several studies demonstrated the role of autophagy in Bladder Cancer progression as evidenced by detection of microtubule associated protein and its relevance with muscle invasion beside its grade dependency . Autophagy was grade dependent process . Autophagy related gene 7 is a key protein involved in autophagosomes biogenesis, Knockdown of Autophagy related gene 7 induced apoptotic cell death in bladder cancer cell lines measured by increased caspase 3 level, Based on these previous studies autophagy plays a role in bladder cancer progression so interruption of its pathway may serve a novel target for future therapies.

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 150
• Est. completion date: December 31, 2021
• Est. primary completion date: October 1, 2021
• Accepts healthy volunteers: No
• Gender: All
• Age group: N/A and older

Eligibility

Inclusion Criteria:

• 1)patients confirmed histopathologically to have bladder cancer. 2) Both sexes. 3) Patients who will accept to participate in the study.

Exclusion Criteria:

• Patients with past history of Bladder Cancer with previous chemotherapy or any other types of cancer in the last 5 years.

Related Conditions & MeSH terms

• Bladder Cancer
• Urinary Bladder Neoplasms

Locations

Country	Name	City	State
Egypt	Assiut	Assiut

Sponsors (1)

Lead Sponsor	Collaborator
Assiut University

Country where clinical trial is conducted

Egypt, 

References & Publications (10)

Kondo Y, Kanzawa T, Sawaya R, Kondo S. The role of autophagy in cancer development and response to therapy. Nat Rev Cancer. 2005 Sep;5(9):726-34. Review. — View Citation

Lin YC, Lin JF, Wen SI, Yang SC, Tsai TF, Chen HE, Chou KY, Hwang TI. Inhibition of High Basal Level of Autophagy Induces Apoptosis in Human Bladder Cancer Cells. J Urol. 2016 Apr;195(4 Pt 1):1126-35. doi: 10.1016/j.juro.2015.10.128. Epub 2015 Oct 28. — View Citation

Maiuri MC, Zalckvar E, Kimchi A, Kroemer G. Self-eating and self-killing: crosstalk between autophagy and apoptosis. Nat Rev Mol Cell Biol. 2007 Sep;8(9):741-52. Review. — View Citation

Mathew R, Karantza-Wadsworth V, White E. Assessing metabolic stress and autophagy status in epithelial tumors. Methods Enzymol. 2009;453:53-81. doi: 10.1016/S0076-6879(08)04004-4. — View Citation

Mizushima N. Autophagy: process and function. Genes Dev. 2007 Nov 15;21(22):2861-73. Review. — View Citation

Mukhopadhyay S, Sinha N, Das DN, Panda PK, Naik PP, Bhutia SK. Clinical relevance of autophagic therapy in cancer: Investigating the current trends, challenges, and future prospects. Crit Rev Clin Lab Sci. 2016 Aug;53(4):228-52. doi: 10.3109/10408363.2015 — View Citation

Ojha R, Singh SK, Bhattacharyya S, Dhanda RS, Rakha A, Mandal AK, Jha V. Inhibition of grade dependent autophagy in urothelial carcinoma increases cell death under nutritional limiting condition and potentiates the cytotoxicity of chemotherapeutic agent. — View Citation

Sivridis E, Koukourakis MI, Mendrinos SE, Touloupidis S, Giatromanolaki A. Patterns of autophagy in urothelial cell carcinomas--the significance of "stone-like" structures (SLS) in transurethral resection biopsies. Urol Oncol. 2013 Oct;31(7):1254-60. doi: — View Citation

Woldu SL, Bagrodia A, Lotan Y. Guideline of guidelines: non-muscle-invasive bladder cancer. BJU Int. 2017 Mar;119(3):371-380. doi: 10.1111/bju.13760. Epub 2017 Jan 24. Review. — View Citation

Yang ZJ, Chee CE, Huang S, Sinicrope FA. The role of autophagy in cancer: therapeutic implications. Mol Cancer Ther. 2011 Sep;10(9):1533-41. doi: 10.1158/1535-7163.MCT-11-0047. Epub 2011 Aug 30. Review. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	autophagy marker	differences in the level of Atg7(autophagy marker) in Low Grade bladder cancer and High Grade bladder cancer groups in comparison with safety margin and healthy control group.	baseline
Secondary	stress markers	Relation between LC3A and muscle invasiveness in bladder cancer progression, and relation between levels of ATF6, activating transcription factor6 (ER stress marker) -MDA malondialdehyde (oxidative stress marker)-Caspase3 (apoptotic marker) in different study groups and bladder cancer development.	baseline