Physiology of antibiotics lethality in Mycobacteria
The increasing prevalence and spread of drug-resistant strains of M.tuberculosis has resulted in the rise of MDR-TB and XDR-TB cases around the world. This necessitates the need for a better understanding of current bactericidal antibiotics mode of action so as to increase efficacy of current treatm...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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2016
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| Online Access: | http://hdl.handle.net/10356/67197 |
| _version_ | 1826127670582181888 |
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| author | Jin, Frances Xin Er |
| author2 | Kevin Pethe |
| author_facet | Kevin Pethe Jin, Frances Xin Er |
| author_sort | Jin, Frances Xin Er |
| collection | NTU |
| description | The increasing prevalence and spread of drug-resistant strains of M.tuberculosis has resulted in the rise of MDR-TB and XDR-TB cases around the world. This necessitates the need for a better understanding of current bactericidal antibiotics mode of action so as to increase efficacy of current treatment regimens and uncover novel drug targets. Here we showed that bactericidal antibiotics mode of action induces a death signature involving cellular metabolism. We demonstrated that co-treatment with respiratory inhibitors such as Carbonyl Cyanide m-chlorophenylhydrazone (CCCP) can exert a rescue effect on the killing mechanism of bactericidal antibiotics. Our results suggest that the presence of the death signature is common for at least two different classes of bactericidal antibiotics, and that there is downstream involvement of cellular metabolism processes such as respiration in antibiotics bactericidal mechanism. |
| first_indexed | 2024-10-01T07:12:42Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/67197 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:12:42Z |
| publishDate | 2016 |
| record_format | dspace |
| spelling | ntu-10356/671972023-02-28T17:59:46Z Physiology of antibiotics lethality in Mycobacteria Jin, Frances Xin Er Kevin Pethe School of Biological Sciences Michelle Ang Lay Teng DRNTU::Science::Biological sciences::Microbiology::Drug Resistance The increasing prevalence and spread of drug-resistant strains of M.tuberculosis has resulted in the rise of MDR-TB and XDR-TB cases around the world. This necessitates the need for a better understanding of current bactericidal antibiotics mode of action so as to increase efficacy of current treatment regimens and uncover novel drug targets. Here we showed that bactericidal antibiotics mode of action induces a death signature involving cellular metabolism. We demonstrated that co-treatment with respiratory inhibitors such as Carbonyl Cyanide m-chlorophenylhydrazone (CCCP) can exert a rescue effect on the killing mechanism of bactericidal antibiotics. Our results suggest that the presence of the death signature is common for at least two different classes of bactericidal antibiotics, and that there is downstream involvement of cellular metabolism processes such as respiration in antibiotics bactericidal mechanism. Bachelor of Science in Biological Sciences 2016-05-12T08:27:11Z 2016-05-12T08:27:11Z 2016 Final Year Project (FYP) http://hdl.handle.net/10356/67197 en Nanyang Technological University 32 p. application/pdf |
| spellingShingle | DRNTU::Science::Biological sciences::Microbiology::Drug Resistance Jin, Frances Xin Er Physiology of antibiotics lethality in Mycobacteria |
| title | Physiology of antibiotics lethality in Mycobacteria |
| title_full | Physiology of antibiotics lethality in Mycobacteria |
| title_fullStr | Physiology of antibiotics lethality in Mycobacteria |
| title_full_unstemmed | Physiology of antibiotics lethality in Mycobacteria |
| title_short | Physiology of antibiotics lethality in Mycobacteria |
| title_sort | physiology of antibiotics lethality in mycobacteria |
| topic | DRNTU::Science::Biological sciences::Microbiology::Drug Resistance |
| url | http://hdl.handle.net/10356/67197 |
| work_keys_str_mv | AT jinfrancesxiner physiologyofantibioticslethalityinmycobacteria |