American Journal of Life Sciences

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Serum Chymotrypsin-Like Activity on Digestion of Ala-Ala-AMC as a Substrate, Among CML and AML Patients at TASH, Addis Ababa Ethiopia: A Comparative Cross-Sectional Study

Received: 25 December 2018    Accepted: 07 February 2019    Published: 25 February 2019
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Abstract

Proteosome, composed of 19S and 20S subunits, is vital for AML and CML cell cycling, proliferation, adhesion and as a means to by-pass apoptosis through three distinguishable proteolytic activities. Chymotrypsin-like (CT-L) activity is rate limiting and a well-established therapeutic strategy for AML and CML cells, by proteosome inhibitors than the other two proteolytic activities: trypsin-like activities and caspase-like activities. As the main objective of the study, the serum levels of Chymotrypsin-like activity was assessed among chronic and acute myeloid leukemia patients, and compared among each other and with those of healthy controls. A hospital-based comparative cross-sectional study was conducted among CML and AML patients from February 2016 up to December 2016. Serum samples were obtained from 24 AML, 60 CML and 35 presumed healthy controls. Fluorogenic assays for serum chymotrypsin-like activity using aminomethylcoumarin (AMC) peptide derivatives were carried out. Statistical analysis was done by using SPSS version 20. Descriptive statistics, Paired Samples T-test, Wilcoxon Signed Rank test and Spearman’s rho test were used to investigate any correlation among different parameters. The minimum level of statistical significance was set at p-value 0.05. The mean and median serum levels of Chymotrypsin-like activity were significantly higher in patients with CML and AML than in the healthy controls (P-value < 0.05). CML patients in chronic phase (CP) and secondary AML patients had significantly higher mean and median serum levels of Chymotrypsin-like activity than CML patients in accelerated/blast phase (AP/BP) and de novo AML patients (p-value < 0.05). As a conclusion, the serum Chymotrypsin-like activity level might be a useful diagnostic test, and may be used as prognostic test particularly in a subset of CML patientsin chronic phase (CP) and Secondary AML patients. However, further studies that incorporate other protocols such as chymotrypsin-like activity enzyme-immunoassay with large scaled study population are warranted to decide on prognostic and diagnostic role of the enzyme more accurately.

DOI 10.11648/j.ajls.20190701.12
Published in American Journal of Life Sciences (Volume 7, Issue 1, February 2019)
Page(s) 5-11
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

CML, AML, Serum Chymotrypsin-Like Activity

References
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Author Information
  • Department of Biomedical Sciences, Jimma University, Jimma, Ethiopia

  • Department of Internal Medicine, Addis Ababa University, Addis Ababa, Ethiopia

  • Department of Biomedical Sciences, Jimma University, Jimma, Ethiopia

  • Department of Biomedical Sciences, Jimma University, Jimma, Ethiopia

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    Endriyas Kelta Wabalo, Abdulaziz Abubeker, Chala Kenenisa Edae, Belay Zawdie. (2019). Serum Chymotrypsin-Like Activity on Digestion of Ala-Ala-AMC as a Substrate, Among CML and AML Patients at TASH, Addis Ababa Ethiopia: A Comparative Cross-Sectional Study. American Journal of Life Sciences, 7(1), 5-11. https://doi.org/10.11648/j.ajls.20190701.12

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    Endriyas Kelta Wabalo; Abdulaziz Abubeker; Chala Kenenisa Edae; Belay Zawdie. Serum Chymotrypsin-Like Activity on Digestion of Ala-Ala-AMC as a Substrate, Among CML and AML Patients at TASH, Addis Ababa Ethiopia: A Comparative Cross-Sectional Study. Am. J. Life Sci. 2019, 7(1), 5-11. doi: 10.11648/j.ajls.20190701.12

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    AMA Style

    Endriyas Kelta Wabalo, Abdulaziz Abubeker, Chala Kenenisa Edae, Belay Zawdie. Serum Chymotrypsin-Like Activity on Digestion of Ala-Ala-AMC as a Substrate, Among CML and AML Patients at TASH, Addis Ababa Ethiopia: A Comparative Cross-Sectional Study. Am J Life Sci. 2019;7(1):5-11. doi: 10.11648/j.ajls.20190701.12

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  • @article{10.11648/j.ajls.20190701.12,
      author = {Endriyas Kelta Wabalo and Abdulaziz Abubeker and Chala Kenenisa Edae and Belay Zawdie},
      title = {Serum Chymotrypsin-Like Activity on Digestion of Ala-Ala-AMC as a Substrate, Among CML and AML Patients at TASH, Addis Ababa Ethiopia: A Comparative Cross-Sectional Study},
      journal = {American Journal of Life Sciences},
      volume = {7},
      number = {1},
      pages = {5-11},
      doi = {10.11648/j.ajls.20190701.12},
      url = {https://doi.org/10.11648/j.ajls.20190701.12},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ajls.20190701.12},
      abstract = {Proteosome, composed of 19S and 20S subunits, is vital for AML and CML cell cycling, proliferation, adhesion and as a means to by-pass apoptosis through three distinguishable proteolytic activities. Chymotrypsin-like (CT-L) activity is rate limiting and a well-established therapeutic strategy for AML and CML cells, by proteosome inhibitors than the other two proteolytic activities: trypsin-like activities and caspase-like activities. As the main objective of the study, the serum levels of Chymotrypsin-like activity was assessed among chronic and acute myeloid leukemia patients, and compared among each other and with those of healthy controls. A hospital-based comparative cross-sectional study was conducted among CML and AML patients from February 2016 up to December 2016. Serum samples were obtained from 24 AML, 60 CML and 35 presumed healthy controls. Fluorogenic assays for serum chymotrypsin-like activity using aminomethylcoumarin (AMC) peptide derivatives were carried out. Statistical analysis was done by using SPSS version 20. Descriptive statistics, Paired Samples T-test, Wilcoxon Signed Rank test and Spearman’s rho test were used to investigate any correlation among different parameters. The minimum level of statistical significance was set at p-value 0.05. The mean and median serum levels of Chymotrypsin-like activity were significantly higher in patients with CML and AML than in the healthy controls (P-value de novo AML patients (p-value < 0.05). As a conclusion, the serum Chymotrypsin-like activity level might be a useful diagnostic test, and may be used as prognostic test particularly in a subset of CML patientsin chronic phase (CP) and Secondary AML patients. However, further studies that incorporate other protocols such as chymotrypsin-like activity enzyme-immunoassay with large scaled study population are warranted to decide on prognostic and diagnostic role of the enzyme more accurately.},
     year = {2019}
    }
    

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  • TY  - JOUR
    T1  - Serum Chymotrypsin-Like Activity on Digestion of Ala-Ala-AMC as a Substrate, Among CML and AML Patients at TASH, Addis Ababa Ethiopia: A Comparative Cross-Sectional Study
    AU  - Endriyas Kelta Wabalo
    AU  - Abdulaziz Abubeker
    AU  - Chala Kenenisa Edae
    AU  - Belay Zawdie
    Y1  - 2019/02/25
    PY  - 2019
    N1  - https://doi.org/10.11648/j.ajls.20190701.12
    DO  - 10.11648/j.ajls.20190701.12
    T2  - American Journal of Life Sciences
    JF  - American Journal of Life Sciences
    JO  - American Journal of Life Sciences
    SP  - 5
    EP  - 11
    PB  - Science Publishing Group
    SN  - 2328-5737
    UR  - https://doi.org/10.11648/j.ajls.20190701.12
    AB  - Proteosome, composed of 19S and 20S subunits, is vital for AML and CML cell cycling, proliferation, adhesion and as a means to by-pass apoptosis through three distinguishable proteolytic activities. Chymotrypsin-like (CT-L) activity is rate limiting and a well-established therapeutic strategy for AML and CML cells, by proteosome inhibitors than the other two proteolytic activities: trypsin-like activities and caspase-like activities. As the main objective of the study, the serum levels of Chymotrypsin-like activity was assessed among chronic and acute myeloid leukemia patients, and compared among each other and with those of healthy controls. A hospital-based comparative cross-sectional study was conducted among CML and AML patients from February 2016 up to December 2016. Serum samples were obtained from 24 AML, 60 CML and 35 presumed healthy controls. Fluorogenic assays for serum chymotrypsin-like activity using aminomethylcoumarin (AMC) peptide derivatives were carried out. Statistical analysis was done by using SPSS version 20. Descriptive statistics, Paired Samples T-test, Wilcoxon Signed Rank test and Spearman’s rho test were used to investigate any correlation among different parameters. The minimum level of statistical significance was set at p-value 0.05. The mean and median serum levels of Chymotrypsin-like activity were significantly higher in patients with CML and AML than in the healthy controls (P-value de novo AML patients (p-value < 0.05). As a conclusion, the serum Chymotrypsin-like activity level might be a useful diagnostic test, and may be used as prognostic test particularly in a subset of CML patientsin chronic phase (CP) and Secondary AML patients. However, further studies that incorporate other protocols such as chymotrypsin-like activity enzyme-immunoassay with large scaled study population are warranted to decide on prognostic and diagnostic role of the enzyme more accurately.
    VL  - 7
    IS  - 1
    ER  - 

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