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Komura T, Aoki M, Nishikawa Y. Feeding on lactic acid bacteria isolated from food extends the lifespan of Caenorhabditis elegans. Lett Appl Microbiol 2024; 77:ovae020. [PMID: 38389250 DOI: 10.1093/lambio/ovae020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/15/2024] [Accepted: 02/21/2024] [Indexed: 02/24/2024]
Abstract
Lactic acid bacteria (LAB) contribute to human health, and LAB functionality has been studied using Caenorhabditis elegans as an alternative host. However, many studies have focused on the efficacy of a single strain of LAB, and few reports have compared various LAB strains. In this study, we examined the effects of 15 strains of LAB isolated from vegetables, meat, and fermented foods on nematode longevity and healthy lifespan. To reduce the frequency of laborious survival observations, we performed a lifespan assay on agar plates containing 2'-deoxy-5-fluorouridine (FUdR), which inhibits egg hatching and prevents generation mixing. Four beneficial strains showed significant lifespan extension and increased spontaneous nematode mobility, regardless of treatment with or without FUdR and the frequency of survival observation. These results suggested increased longevity and an extended healthy lifespan, confirming the reliability of our method. The four strains are expected to show anti-ageing effects besides longevity and have effects on age-related degenerative diseases. Our labor-saving method can be used as an alternative to conventional methods and enable simultaneous screening of multiple strains. Future research could explore factors contributing to lifespan regulation by comparing and verifying differential strain effects on lifespan.
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Affiliation(s)
- Tomomi Komura
- School of Human Science and Environment, University of Hyogo, Himeji, Hyogo 6700092, Japan
- Research Institute for Food and Nutritional Sciences, University of Hyogo, Himeji, Hyogo 6700092, Japan
| | - Motoshi Aoki
- Central Research Institute, Marudai Food, Co., Ltd, Takatsuki, Osaka 5698577, Japan
| | - Yoshikazu Nishikawa
- Faculty of Food and Nutrition Sciences, Tezukayama Gakuin University, Sakai, Osaka 5900113, Japan
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2
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Choi GH, Holzapfel WH, Todorov SD. Diversity of the bacteriocins, their classification and potential applications in combat of antibiotic resistant and clinically relevant pathogens. Crit Rev Microbiol 2023; 49:578-597. [PMID: 35731254 DOI: 10.1080/1040841x.2022.2090227] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 04/18/2022] [Accepted: 06/13/2022] [Indexed: 12/19/2022]
Abstract
There is almost a century since discovery of penicillin by Alexander Fleming, a century of enthusiasm, abuse, facing development of antibiotic-resistance and clear conclusion that the modern medicine needs a new type of antimicrobials. Bacteriocins produced by Gram-positive and Gram-negative bacteria, Archaea and Eukaryotes were widely explored as potential antimicrobials with several applications in food industry. In last two decades bacteriocins showed their potential as promising alternative therapeutic for the treatment of antibiotic-resistant pathogens. Bacteriocins can be characterised as highly selective antimicrobials and therapeutics with low cytotoxicity. Most probably in order to solve the problems associated with the increasing number of antibiotic-resistant bacteria, the application of natural or bioengineered bacteriocins in addition to synergistically acting preparations of bacteriocins and conventional antibiotics, can be the next step in combat versus drug-resistant pathogens. In this overview we focussed on diversity of specific lactic acid bacteria and their bacteriocins. Moreover, some additional examples of bacteriocins from non-lactic acid, Gram-positive and Gram-negative bacteria, Archaea and eukaryotic organisms are presented and discussed. Therapeutic properties of bacteriocins, their bioengineering and combined applications, together with conventional antibiotics, were evaluated with the scope of application in human and veterinary medicine for combating (multi-)drug-resistant pathogens.
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Affiliation(s)
- Gee-Hyeun Choi
- ProBacLab, Department of Advanced Convergence, Handong Global University, Pohang, Republic of Korea
| | - Wilhelm Heinrich Holzapfel
- Human Effective Microbes, Department of Advanced Convergence, Handong Global University, Pohang, Republic of Korea
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3
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Lactococcus lactis Endocarditis in an Immunocompromised Patient. Case Rep Infect Dis 2022; 2022:3845679. [DOI: 10.1155/2022/3845679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/28/2022] [Accepted: 10/03/2022] [Indexed: 11/10/2022] Open
Abstract
Lactococcus lactis infections are rarely reported in the medical literature. L. lactis is a commonly used fermenting agent which may be difficult to identify with common microbiology identification processes. This factor may contribute to its lack of recognition in medical journals. We report a case of an immunosuppressed 80-year-old female with L. lactis bacteremia, subsequently, found to have aortic valve vegetation, who responded clinically to a six-week duration of ceftriaxone therapy. Afterward, a brief updated literature review is presented on L. lactis infections.
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Shimizu A, Hase R, Suzuki D, Toguchi A, Otsuka Y, Hirata N, Hosokawa N. Lactococcus lactis cholangitis and bacteremia identified by MALDI-TOF mass spectrometry: A case report and review of the literature on Lactococcus lactis infection. J Infect Chemother 2018; 25:141-146. [PMID: 30100399 DOI: 10.1016/j.jiac.2018.07.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 06/30/2018] [Accepted: 07/17/2018] [Indexed: 12/16/2022]
Abstract
Lactococcus lactis is a rare causative organism in humans. Cases of L. lactis infection have only rarely been reported. However, because it is often difficult to identify by conventional commercially available methods, its incidence may be underestimated. We herein report the case of a 70-year-old man with cholangiocarcinoma who developed L. lactis cholangitis and review previously reported cases of L. lactis infection. Our case was confirmed by matrix-assisted desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). This case shows L. lactis is a potential causative pathogen of cholangitis and that MALDI-TOF MS can be useful for the rapid and accurate identification of L. lactis infection. We searched the literature for published case reports on cholangitis and any other infections caused by L. lactis, and thereby identified 36 cases, including our case. At least 66.7% (n = 24) of the cases had significant underlying conditions; 15 of the cases involved patients with an immunocompromised status. At least 41.7% (n = 15) had a significant food consumption history, such as the consumption of unpasteurized dairy products. The clinical sources of L. lactis were diverse and endocarditis was the most common diagnosis (n = 8), followed by hepatobiliary infection (n = 6), central nervous system infection (n = 5), and peritonitis (n = 4). The prognosis was favorable in most cases.
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Affiliation(s)
- Akihiko Shimizu
- Department of Infectious Diseases, Kameda Medical Center, 929 Higashicho, Kamogawa, Chiba, 2968602, Japan.
| | - Ryota Hase
- Department of Infectious Diseases, Kameda Medical Center, 929 Higashicho, Kamogawa, Chiba, 2968602, Japan; Department of Infectious Diseases, Japanese Red Cross Narita Hospital, 90-1 Iidacho, Narita, Chiba, 2868523, Japan
| | - Daisuke Suzuki
- Department of Infectious Diseases, Kameda Medical Center, 929 Higashicho, Kamogawa, Chiba, 2968602, Japan
| | - Akihiro Toguchi
- Department of Laboratory Medicine, Kameda Medical Center, 929 Higashicho, Kamogawa, Chiba, 2968602, Japan
| | - Yoshihito Otsuka
- Department of Laboratory Medicine, Kameda Medical Center, 929 Higashicho, Kamogawa, Chiba, 2968602, Japan
| | - Nobuto Hirata
- Department of Gastroenterology, Kameda Medical Center, 929 Higashicho, Kamogawa, Chiba, 2968602, Japan
| | - Naoto Hosokawa
- Department of Infectious Diseases, Kameda Medical Center, 929 Higashicho, Kamogawa, Chiba, 2968602, Japan
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5
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Georgountzos G, Michopoulos C, Grivokostopoulos C, Kolosaka M, Vlassopoulou N, Lekkou A. Infective Endocarditis in a Young Adult due to Lactococcus lactis: A Case Report and Review of the Literature. Case Rep Med 2018; 2018:5091456. [PMID: 29686711 PMCID: PMC5857332 DOI: 10.1155/2018/5091456] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 02/12/2018] [Indexed: 11/17/2022] Open
Abstract
Infective endocarditis (IE) is a condition mainly associated with valvular disease or prosthetic valve and intravenous drug use as a risk factor. Here, we describe a rare case of a previously healthy patient with endocarditis due to Lactococcus lactis associated with cattle contact, where antibiotic treatment resulted in full recovery.
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Affiliation(s)
- G. Georgountzos
- Faculty of Medicine, Department of Health Sciences, University of Patras, Rio, Patras 26504, Greece
| | - C. Michopoulos
- Faculty of Medicine, Department of Health Sciences, University of Patras, Rio, Patras 26504, Greece
| | - C. Grivokostopoulos
- Faculty of Medicine, Department of Health Sciences, University of Patras, Rio, Patras 26504, Greece
| | - M. Kolosaka
- Department of Internal Medicine, Patras University Hospital, Rio, Patras 26504, Greece
| | - N. Vlassopoulou
- Department of Cardiology, Patras University Hospital, Rio, Patras 26504, Greece
| | - A. Lekkou
- Department of Infectious Diseases, Patras University Hospital, Rio, Patras 26504, Greece
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Karaaslan A, Soysal A, Sarmış A, Kadayifci EK, Cerit K, Atıcı S, Söyletir G, Bakır M. Lactococcus lactis Catherter-Related Bloodstream Infection in an Infant: Case Report. Jpn J Infect Dis 2014; 68:341-2. [PMID: 25672357 DOI: 10.7883/yoken.jjid.2014.137] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Lactococcus lactis is a gram-positive coccus that is nonpathogenic in humans. Herein, we present the case of a 1-year-old boy with Down syndrome and Hirschprung's disease (HD) who developed a catheter-related bloodstream infection with L. lactis after gastrointestinal surgery. The patient had been hospitalized in the pediatric surgery unit from birth because of HD, and had undergone the Duhamel-Martin procedure which caused recurrent diarrhea episodes and feeding intolerance. On the infant's 430th day of life, he had an episode of gastroenteritis and feeding intolerance. Because of clinical suspiction of sepsis, blood cultures were taken both from the central venous catheter and peripheral vein, and evidence of a growing microorganism was detected in 2 different central venous catheter blood cultures taken 2 days apart. The colonies were then identified by both the Vitek 2 and Vitek MS systems (bioMérieux, Marseille, France) as L. lactis spp. lactis. The central venous catheter could not be removed because of the absence of a peripheral venous line, and the patient was subsequently successfully treated with vancomycin. Therefore, although Lactococcus species is generally thought to be nonpathogenic, it should still be kept in mind as a potential pathogen in infants.
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Affiliation(s)
- Ayşe Karaaslan
- Department of Pediatrics and Division of Pediatric Infectious Diseases, Medical School, Marmara University
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Lee JY, Seo MY, Yang J, Kim K, Chang H, Kim SC, Kim MG, Jo SK, Cho W, Kim HK. Polymicrobial Peritonitis with Lactococcus lactis in a Peritoneal Dialysis Patient. Chonnam Med J 2014; 50:67-9. [PMID: 25229019 PMCID: PMC4161764 DOI: 10.4068/cmj.2014.50.2.67] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 05/27/2014] [Accepted: 05/30/2014] [Indexed: 11/17/2022] Open
Abstract
Lactococcus lactis (L. lactis) is an important gram-positive bacterium in dairy products. It is a rare cause of opportunistic infections with only four cases of Lactococcus peritoneal dialysis (PD) peritonitis reported in the literature. In Korea, L. lactis infection was first reported in a liver abscess patient in 2010; however, PD peritonitis with Lactococcus has not been reported in Korea. Recently, we experienced a case of Lactococcus-associated polymicrobial PD peritonitis. The patient was initially managed with broad-coverage antibiotics; however, owing to a poor response, the PD catheter was removed and the patient was switched to hemodialysis. We discuss this case and review the literature.
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Affiliation(s)
- Jun Yong Lee
- Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea
| | - Min Young Seo
- Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea
| | - Jihyun Yang
- Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea
| | - Kitae Kim
- Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea
| | - Hyojeong Chang
- Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea
| | - Sun Chul Kim
- Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea
| | - Myung-Gyu Kim
- Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea
| | - Sang-Kyung Jo
- Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea
| | - Wonyong Cho
- Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea
| | - Hyoung Kyu Kim
- Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea
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Uchida Y, Morita H, Adachi S, Asano T, Taga T, Kondo N. Bacterial meningitis and septicemia of neonate due to Lactococcus lactis. Pediatr Int 2011; 53:119-20. [PMID: 21342341 DOI: 10.1111/j.1442-200x.2010.03240.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Yasushi Uchida
- Department of Pediatrics, Nagara Medical Center, Nagara, Gifu, Japan.
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Mofredj A, Bahloul H, Chanut C. [Lactococcus lactis: an opportunistic bacterium?]. Med Mal Infect 2007; 37:200-7. [PMID: 17336016 DOI: 10.1016/j.medmal.2007.01.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2006] [Accepted: 01/19/2007] [Indexed: 11/16/2022]
Abstract
Lactic bacteria have been used for centuries to ferment food and thus, to better preserve them. Considered as inoffensive for man, its use has largely spread in food industry. Some species are even being considered for the treatment of human diseases. Indeed, the development of new cellular biology technologies opens opportunities for the use of these bacteria as biotherapeutic agents. These species would produce heterogeneous proteins such as enzymes (lipase, lactase, esterase), chemical mediators (hormones and interleukins), and molecules able to stimulate local immune responses. However, rare cases of human infection, sometimes severe, were reported recently. They generally occured in patients with comorbidities with consumption of unpasteurized dairy products reported for some. The scarcity of these cases and their favorable outcome should not hinder the industrial and medical use of these bacteria.
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Affiliation(s)
- A Mofredj
- Service de Réanimation, Centre Hospitalier Général de Salon-de-Provence, 207, avenue Julien-Fabre, BP 321, 13658 Salon-de-Provence cedex, France.
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