In vitro antimicrobial and anticancer potential of hinokitiol against oral pathogens and oral cancer cell lines

Yin Hua Shih, Kuo Wei Chang, Shih Min Hsia, Cheng Chia Yu, Lih Jyh Fuh, Tzu Yun Chi, Tzong Ming Shieh

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

Hinokitiol is a natural component isolated from Chamacyparis taiwanensis. It has anti-microbial activity, and has been used in oral care products. The minimal inhibitory concentration (MIC) and minimal microbicidal concentration (MMC) of hinokitiol against MRSA, Aggregatibacter actinomycetemcomitans, Streptococcus mutans, and Candida albicans were determined by the agar and broth dilution method (MIC: 40-110. μM; MMC: 50-130. μM); the paradoxical inhibition phenomenon (PIP) was observed in A. actinomycetemcomitans and S. mutans. The PIP can be described as microbial growth occurring in the presence of both high and low concentrations of a compound, between which microbial growth is inhibited. The PIP was confirmed using a kinetic microplate and inhibition zone methods. The PIP was also observed in MRSA. The low autolysin activity somehow correlated to the PIP positive. The cell diameter was increased in all the pathogens, and the transition was inhibited in C. albicans following hinokitiol treatment. Hinokitiol is also a potential anticancer drug. The 200. μM of hinokitiol has significant antimicrobial and cytotoxic activities against oral pathogens and oral squamous cell carcinoma cell lines, respectively, and lower cytotoxic effects for normal human oral keratinocytes, indicating that hinokitiol displays a high potential for safe and effective applications in oral health care.

Original languageEnglish
Pages (from-to)254-262
Number of pages9
JournalMicrobiological Research
Volume168
Issue number5
DOIs
Publication statusPublished - Jun 12 2013

Fingerprint

Mouth Neoplasms
Cell Line
Aggregatibacter actinomycetemcomitans
Streptococcus mutans
Methicillin-Resistant Staphylococcus aureus
Candida albicans
N-Acetylmuramoyl-L-alanine Amidase
Oral Health
Growth
Keratinocytes
Agar
In Vitro Techniques
beta-thujaplicin
Squamous Cell Carcinoma
Delivery of Health Care
Pharmaceutical Preparations

Keywords

  • Autolysin
  • Hinokitiol
  • Minimal inhibitory concentrations
  • Minimal microbicidal concentration
  • Oral squamous cell carcinoma
  • Paradoxical inhibition phenomenon (PIP)

ASJC Scopus subject areas

  • Microbiology

Cite this

In vitro antimicrobial and anticancer potential of hinokitiol against oral pathogens and oral cancer cell lines. / Shih, Yin Hua; Chang, Kuo Wei; Hsia, Shih Min; Yu, Cheng Chia; Fuh, Lih Jyh; Chi, Tzu Yun; Shieh, Tzong Ming.

In: Microbiological Research, Vol. 168, No. 5, 12.06.2013, p. 254-262.

Research output: Contribution to journalArticle

Shih, Yin Hua ; Chang, Kuo Wei ; Hsia, Shih Min ; Yu, Cheng Chia ; Fuh, Lih Jyh ; Chi, Tzu Yun ; Shieh, Tzong Ming. / In vitro antimicrobial and anticancer potential of hinokitiol against oral pathogens and oral cancer cell lines. In: Microbiological Research. 2013 ; Vol. 168, No. 5. pp. 254-262.
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