Kalai Mathee

Last updated
Kalai Mathee
Born30 August 1959
NationalityMalaysian
EducationMPH, Health Policy and Management, Florida International University (2018)

PhD, Microbiology and Immunology, University of Tennessee, Memphis (1992)

Contents

MSc, Microbial Genetics, University of Malaya, Kuala Lumpur, Malaysia (1986)

BSc, Genetics, University of Malaya. Kuala Lumpur, Malaysia (1984)
SpouseGiri Narasimhan
Parent(s) Ka. Kaliaperumal
Rugmani Loganayaki
Scientific career
Thesis Function and regulation of the bacteriophage Mu middle operon  (1992)

Kalai Mathee is a professor at Florida International University, joint editor-in-chief of the Journal of Medical Microbiology , and an elected fellow of the American Academy of Microbiology. She is known for her research on bacterial infections caused by Pseudomonas aeruginosa.

Early life and education

Kalai Mathee was born into a working-class family in Malaysia to Kuyilar Kaliaperumal and Loganayaki. She is of Tamil heritage and got her early education in a vernacular school SJKT Kerajaan in Ipoh. [1] She has a Bachelor of Science in Genetics from the University of Malaya in Kuala Lumpur, graduating in 1984, and completed her master's in molecular genetics focusing on Neisseria gonorrhoeae in 1986 under the tutelage of Chong-Lek Koh. [2] Mathee did her Ph.D. (1992) at the University of Tennessee Health Science Center at Memphis under Martha Howe's guidance specializing in transcription. [3] Mathee did two post-doctorate fellowships, one at Tufts University focusing on Helicobacter pylori pathogenesis in the year 1993; the other at University of Tennessee Health Science Center working on Pseudomonas aeruginosa pathogenesis from 1993-1999. In 2018, she received her master's degree in Public Health in Health Policy and Management from Florida International University.

Career

In 1999, Mathee moved to Florida International University where she was promoted to professor in 2013. She did a sabbatical at Harvard Medical School in Stephen Lory’s lab from 2006-2007. [1] In 2007 she was the founding chair of the Department of Molecular Microbiology and Infectious Diseases at Florida International University. [2]

In 2017, Mathee and Norman Fry were named co-editors-in-cChief of the Journal of Medical Microbiology. [4] [5]

Research

Since 1993, the major focus of Mathee’s research has been the pathobiology of Pseudomonas aeruginosa chronic infections with specific emphasis on β-lactam resistance, alginate overproduction, comparative genomics, alternative therapies, and cystic fibrosis lung ecology. Her early research identified the function and regulatory mechanisms of the bacteriophage Mu. [6] [7] Her postdoctoral research focused on alginate gene regulation with a focus on the alginate-specific sigma factor, AlgT/U, and she was the first to show MucA is an inner membrane protein. [8] Mathee also showed that polymorphonuclear leukocytes and oxygen radicals can contribute to mucoid conversion by Pseudomonas aeruginosa. [9] Mathee has examined the role of quorum sensing molecules in Pseudomonas aeruginosa infections, [10] [11] [12] and demonstrated that alginate is not required for biofilm formation. [13] Her work has used comparative genomics [14] and transcriptomics [15] to define variability across strains of Pseudomonas aeruginosa. A portion of Mathee's research is on β-lactam resistance, [16] particularly the amp pathway where she showed the presence of a β-lactamase PoxB, two permeases, and coregulation of antibiotic resistance and other virulence factors mediated by AmpR. [17] [18] Current ongoing research focuses on exploring various microbiomes, including lung, irritable bowel syndrome, vaginal, and gut. [19]

Selected publications

Awards and honors

In 2011, she was awarded the President’s Council Worlds Ahead Faculty Award from Florida International University. [20] Mathee was named a distinguished fellow of the Malaysian Biotechnology Information Centre in 2013. [21] In 2014, she was one of the inaugural recipients of the New England Biolabs Passion in Science Award. [22] In 2020, Mathee was elected a fellow of the American Academy of Microbiology. [23] Mathee is the first Florida International University faculty member to receive this honor, and the first Malaysian woman to receive this honor. [24] In 2022 she was awarded the Microbiology Society's Microbiology Outreach Prize. [25]

Personal life

In 1993, she married a computer science professor, Giri Narasimhan, in Nashville, Tennessee.[ citation needed ]

Related Research Articles

<span class="mw-page-title-main">Biofilm</span> Aggregation of bacteria or cells on a surface

A biofilm is a syntrophic community of microorganisms in which cells stick to each other and often also to a surface. These adherent cells become embedded within a slimy extracellular matrix that is composed of extracellular polymeric substances (EPSs). The cells within the biofilm produce the EPS components, which are typically a polymeric combination of extracellular polysaccharides, proteins, lipids and DNA. Because they have a three-dimensional structure and represent a community lifestyle for microorganisms, they have been metaphorically described as "cities for microbes".

In biology, quorum sensing or quorum signaling (QS) is the process of cell-to-cell communication that allows bacteria to detect and respond to cell population density by gene regulation, typically as a means of acclimating to environmental disadvantages.

<i>Pseudomonas</i> Genus of Gram-negative bacteria

Pseudomonas is a genus of Gram-negative bacteria belonging to the family Pseudomonadaceae in the class Gammaproteobacteria. The 313 members of the genus demonstrate a great deal of metabolic diversity and consequently are able to colonize a wide range of niches. Their ease of culture in vitro and availability of an increasing number of Pseudomonas strain genome sequences has made the genus an excellent focus for scientific research; the best studied species include P. aeruginosa in its role as an opportunistic human pathogen, the plant pathogen P. syringae, the soil bacterium P. putida, and the plant growth-promoting P. fluorescens, P. lini, P. migulae, and P. graminis.

<i>Pseudomonas aeruginosa</i> Species of bacterium

Pseudomonas aeruginosa is a common encapsulated, Gram-negative, aerobic–facultatively anaerobic, rod-shaped bacterium that can cause disease in plants and animals, including humans. A species of considerable medical importance, P. aeruginosa is a multidrug resistant pathogen recognized for its ubiquity, its intrinsically advanced antibiotic resistance mechanisms, and its association with serious illnesses – hospital-acquired infections such as ventilator-associated pneumonia and various sepsis syndromes. P. aeruginosa is able to selectively inhibit various antibiotics from penetrating its outer membrane - and has high resistance to several antibiotics. According to the World Health Organization P. aeruginosa poses one of the greatest threats to humans in terms of antibiotic resistance.

<span class="mw-page-title-main">Swarming motility</span>

Swarming motility is a rapid and coordinated translocation of a bacterial population across solid or semi-solid surfaces, and is an example of bacterial multicellularity and swarm behaviour. Swarming motility was first reported by Jorgen Henrichsen and has been mostly studied in genus Serratia, Salmonella, Aeromonas, Bacillus, Yersinia, Pseudomonas, Proteus, Vibrio and Escherichia.

<span class="mw-page-title-main">Lactonase</span> Class of enzymes

Lactonase (EC 3.1.1.81, acyl-homoserine lactonase; systematic name N-acyl-L-homoserine-lactone lactonohydrolase) is a metalloenzyme, produced by certain species of bacteria, which targets and inactivates acylated homoserine lactones (AHLs). It catalyzes the reaction

<span class="mw-page-title-main">Pyocyanin</span> Chemical compound

Pyocyanin (PCN) is one of the many toxic compounds produced and secreted by the Gram negative bacterium Pseudomonas aeruginosa. Pyocyanin is a blue secondary metabolite, turning red below pH 4.9, with the ability to oxidise and reduce other molecules and therefore kill microbes competing against P. aeruginosa as well as mammalian cells of the lungs which P. aeruginosa has infected during cystic fibrosis. Since pyocyanin is a zwitterion at blood pH, it is easily able to cross the cell membrane. There are three different states in which pyocyanin can exist: oxidized (blue), monovalently reduced (colourless) or divalently reduced (red). Mitochondria play an important role in the cycling of pyocyanin between its redox states. Due to its redox-active properties, pyocyanin generates reactive oxygen species.

Roberto Kolter is Professor of Microbiology, Emeritus at Harvard Medical School, an author, and past president of the American Society for Microbiology. Kolter has been a professor at Harvard Medical School since 1983 and was Co-director of Harvard's Microbial Sciences Initiative from 2003-2018. During the 35-year term of the Kolter laboratory from 1983 to 2018, more than 130 graduate students and postdoctoral trainees explored an eclectic mix of topics gravitating around the study of microbes. Kolter is a fellow of the American Association for the Advancement of Science and of the American Academy of Microbiology.

<span class="mw-page-title-main">Pyoverdine</span> Chemical compound

Pyoverdines are fluorescent siderophores produced by certain pseudomonads. Pyoverdines are important virulence factors, and are required for pathogenesis in many biological models of infection. Their contributions to bacterial pathogenesis include providing a crucial nutrient, regulation of other virulence factors, supporting the formation of biofilms, and are increasingly recognized for having toxicity themselves.

<span class="mw-page-title-main">Rhamnolipid</span> Chemical compound

Rhamnolipids are a class of glycolipid produced by Pseudomonas aeruginosa, amongst other organisms, frequently cited as bacterial surfactants. They have a glycosyl head group, in this case a rhamnose moiety, and a 3-(hydroxyalkanoyloxy)alkanoic acid (HAA) fatty acid tail, such as 3-hydroxydecanoic acid.

Bacterial morphological plasticity refers to changes in the shape and size that bacterial cells undergo when they encounter stressful environments. Although bacteria have evolved complex molecular strategies to maintain their shape, many are able to alter their shape as a survival strategy in response to protist predators, antibiotics, the immune response, and other threats.

Acyl-homoserine-lactone synthase is an enzyme with systematic name acyl-(acyl-carrier protein):S-adenosyl-L-methionine acyltranserase . This enzyme catalyses the following chemical reaction

Delftia tsuruhatensis is a Gram-negative, rod-shaped, catalase- and oxidase-positive, motile bacterium from the Comamonadaceae family. It was first isolated from a wastewater treatment plant in Japan in 2003. D. tsuruhatensis is an opportunistic and emergent pathogen. All documented human infections are healthcare-associated.

<span class="mw-page-title-main">Crc (protein)</span>

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Everett Peter Greenberg is an American microbiologist. He is the inaugural Eugene and Martha Nester Professor of Microbiology at the Department of Microbiology of the University of Washington School of Medicine. He is best known for his research on quorum sensing, and has received multiple awards for his work.

<span class="mw-page-title-main">Twitching motility</span> Form of crawling bacterial motility

Twitching motility is a form of crawling bacterial motility used to move over surfaces. Twitching is mediated by the activity of hair-like filaments called type IV pili which extend from the cell's exterior, bind to surrounding solid substrates, and retract, pulling the cell forwards in a manner similar to the action of a grappling hook. The name twitching motility is derived from the characteristic jerky and irregular motions of individual cells when viewed under the microscope. It has been observed in many bacterial species, but is most well studied in Pseudomonas aeruginosa, Neisseria gonorrhoeae and Myxococcus xanthus. Active movement mediated by the twitching system has been shown to be an important component of the pathogenic mechanisms of several species.

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References

  1. 1 2 "Prof Dr Kalai Mathee; A Trailblazing Malaysian Scientist Exceptional Discoveries Makes Waves in The US". Varnam MY. 2021-05-05. Retrieved 2021-12-12.
  2. 1 2 "ORCID page for Kalai Mathee". orcid.org. Retrieved 2021-12-12.
  3. Mathee, Kalai (1992). Function and regulation of the bacteriophage Mu middle operon (Thesis). OCLC   28138881.
  4. Kalai, Mathee; K.Fry, Norman (1 July 2017). "Welcome from Norman Fry and Kalai Mathee, new co-Editors-in-Chief for the Journal of Medical Microbiology". Journal of Medical Microbiology. 66 (7): 846. doi:10.1099/jmm.0.000520. PMID   28759351.
  5. Kalai, Mathee. "Journal of Medical Microbiology". Journal of Medical Microbiology . eISSN   1473-5644. ISSN   0022-2615.
  6. Mathee, K; Howe, M M (1990-12-01). "Identification of a positive regulator of the Mu middle operon". Journal of Bacteriology. 172 (12): 6641–6650. doi:10.1128/jb.172.12.6641-6650.1990. PMC   210775 . PMID   2147678.
  7. Mathee, K; Howe, M M (1993-09-01). "Bacteriophage Mu Mor protein requires sigma 70 to activate the Mu middle promoter". Journal of Bacteriology. 175 (17): 5314–5323. doi:10.1128/jb.175.17.5314-5323.1993. PMC   206584 . PMID   8366019.
  8. Mathee, K; McPherson, C J; Ohman, D E (1997-06-01). "Posttranslational control of the algT (algU)-encoded sigma22 for expression of the alginate regulon in Pseudomonas aeruginosa and localization of its antagonist proteins MucA and MucB (AlgN)". Journal of Bacteriology. 179 (11): 3711–3720. doi:10.1128/jb.179.11.3711-3720.1997. PMC   179169 . PMID   9171421.
  9. Mathee, Kalai; Ciofu, Oana; Sternberg, Claus; Lindum, Peter W.; Campbell, Joan I. A.; Jensen, Per; Johnsen, Anders H.; Givskov, Michael; Ohman, Dennis E.; Søren, Molin; Høiby, Niels (1999-06-01). "Mucoid conversion of Pseudomonas aeruginos by hydrogen peroxide: a mechanism for virulence activation in the cystic fibrosis lung". Microbiology. 145 (6): 1349–1357. doi: 10.1099/13500872-145-6-1349 . ISSN   1350-0872. PMID   10411261.
  10. Wu, Hong; Song, Zhijun; Hentzer, Morten; Andersen, Jens Bo; Heydorn, Arne; Mathee, Kalai; Moser, Claus; Eberl, Leo; Molin, Søren; Høiby, Niels; Givskov, Michael YR 2000 (2000). "Detection of N-acylhomoserine lactones in lung tissues of mice infected with Pseudomonas aeruginosa". Microbiology. 146 (10): 2481–2493. doi: 10.1099/00221287-146-10-2481 . ISSN   1465-2080. PMID   11021924.{{cite journal}}: CS1 maint: numeric names: authors list (link)
  11. Wu, Hong; Song, Zhijun; Givskov, Michael; Doring, Gerd; Worlitzsch, Dieter; Mathee, Kalai; Rygaard, Jørgen; Høiby, Niels YR 2001 (2001). "Pseudomonas aeruginosa mutations in lasI and rhlI quorum sensing systems result in milder chronic lung infection". Microbiology. 147 (5): 1105–1113. doi: 10.1099/00221287-147-5-1105 . ISSN   1465-2080. PMID   11320114.{{cite journal}}: CS1 maint: numeric names: authors list (link)
  12. Adonizio, Allison; Kong, Kok-Fai; Mathee, Kalai (2008). "Inhibition of Quorum Sensing-Controlled Virulence Factor Production in Pseudomonas aeruginosa by South Florida Plant Extracts". Antimicrobial Agents and Chemotherapy. 52 (1): 198–203. doi:10.1128/AAC.00612-07. ISSN   0066-4804. PMC   2223872 . PMID   17938186.
  13. Stapper, Andres Plata; Narasimhan, Giri; Ohman, Dennis E.; Barakat, Johnny; Hentzer, Morten; Molin, Søren; Kharazmi, Arsalan; Høiby, Niels; Mathee, KalaiYR 2004 (2004). "Alginate production affects Pseudomonas aeruginosa biofilm development and architecture, but is not essential for biofilm formation". Journal of Medical Microbiology. 53 (7): 679–690. doi: 10.1099/jmm.0.45539-0 . ISSN   1473-5644. PMID   15184541.{{cite journal}}: CS1 maint: numeric names: authors list (link)
  14. Mathee, Kalai; Narasimhan, Giri; Valdes, Camilo; Qiu, Xiaoyun; Matewish, Jody M.; Koehrsen, Michael; Rokas, Antonis; Yandava, Chandri N.; Engels, Reinhard; Zeng, Erliang; Olavarietta, Raquel (2008-02-26). "Dynamics of Pseudomonas aeruginosa genome evolution". Proceedings of the National Academy of Sciences. 105 (8): 3100–3105. Bibcode:2008PNAS..105.3100M. doi: 10.1073/pnas.0711982105 . ISSN   0027-8424. PMC   2268591 . PMID   18287045.
  15. Balasubramanian, Deepak; Mathee, Kalai (2009). "Comparative transcriptome analyses of Pseudomonas aeruginosa". Human Genomics. 3 (4): 349–361. doi: 10.1186/1479-7364-3-4-361 . ISSN   1479-7364. PMC   2897818 . PMID   19706365.
  16. Kong, Kok-Fai; Schneper, Lisa; Mathee, Kalai (2010). "Beta-lactam antibiotics: from antibiosis to resistance and bacteriology". APMIS. 118 (1): 1–36. doi:10.1111/j.1600-0463.2009.02563.x. ISSN   1600-0463. PMC   2894812 . PMID   20041868.
  17. Kong, Kok-Fai; Jayawardena, Suriya Ravi; Indulkar, Shalaka Dayaram; del Puerto, Aimee; Koh, Chong-Lek; Høiby, Niels; Mathee, Kalai (2005-11-01). "Pseudomonas aeruginosa AmpR Is a Global Transcriptional Factor That Regulates Expression of AmpC and PoxB β-Lactamases, Proteases, Quorum Sensing, and Other Virulence Factors". Antimicrobial Agents and Chemotherapy. 49 (11): 4567–4575. doi:10.1128/AAC.49.11.4567-4575.2005. PMC   1280116 . PMID   16251297.
  18. Balasubramanian, Deepak; Schneper, Lisa; Merighi, Massimo; Smith, Roger; Narasimhan, Giri; Lory, Stephen; Mathee, Kalai (2012-03-29). "The Regulatory Repertoire of Pseudomonas aeruginosa AmpC β-Lactamase Regulator AmpR Includes Virulence Genes". PLOS ONE. 7 (3): e34067. Bibcode:2012PLoSO...734067B. doi: 10.1371/journal.pone.0034067 . ISSN   1932-6203. PMC   3315558 . PMID   22479525.
  19. Mathee, Kalai; Cickovski, Trevor; Deoraj, Alok; Stollstorff, Melanie; Narasimhan, GiriYR 2020 (2020). "The gut microbiome and neuropsychiatric disorders: implications for attention deficit hyperactivity disorder (ADHD)". Journal of Medical Microbiology. 69 (1): 14–24. doi:10.1099/jmm.0.001112. ISSN   1473-5644. PMC   7440676 . PMID   31821133.{{cite journal}}: CS1 maint: numeric names: authors list (link)
  20. "President's Council Worlds Ahead Faculty Award". Florida International University .
  21. "Malaysian Biotechnology Information Centre (MABIC) | Distinguished Fellows" . Retrieved 2021-12-12.
  22. "New England Biolabs, Inc. Release: 15 Inspiring Scientists Receive Passion In Science Awards™". 13 November 2014.
  23. "73 Fellows Elected into the American Academy of Microbiology". ASM.org. February 19, 2020. Retrieved 2021-12-12.
  24. "Mathee elected to American Academy of Microbiology". CASE News. March 17, 2020. Retrieved December 12, 2021.
  25. "Prize winners 2023". Microbiology Society. Retrieved 26 November 2022.