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Wei Y, Xu X, Wang L, Chen Q, Li J, Liu X, Wei Z, Pang J, Peng Y, Guo X, Cheng Z, Wang Z, Zhang Y, Chen K, Lu X, Liang Q. A suitable and efficient optimization system for the culture of Chlamydia trachomatis in adult inclusion conjunctivitis. Pathog Dis 2024; 82:ftae020. [PMID: 39210513 PMCID: PMC11407439 DOI: 10.1093/femspd/ftae020] [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: 03/14/2024] [Revised: 08/02/2024] [Accepted: 08/28/2024] [Indexed: 09/04/2024] Open
Abstract
The prevalence of Chlamydia trachomatis infection in the genitourinary tract is increasing, with an annual rise of 9 million cases. Individuals afflicted with these infections are at a heightened risk of developing adult inclusive conjunctivitis (AIC), which is commonly recognized as the ocular manifestation of this sexually transmitted infection. Despite its significant clinical implications, the lack of distinctive symptoms and the overlap with other ocular conditions often lead to underdiagnosis or misdiagnosis of AIC associated with C. trachomatis infection. Here, we established six distinct C. trachomatis culture cell lines, specifically highlighting the MA104 N*V cell line that exhibited diminished expression of interferon regulatory factor 3 (IRF3) and signal transducer and activator of transcription 1 (STAT1), resulting in reduced interferons. Infected MA104 N*V cells displayed the highest count of intracytoplasmic inclusions detected through immunofluorescence staining, peaking at 48 h postinfection. Subsequently, MA104 N*V cells were employed for clinical screening in adult patients diagnosed with AIC. Among the evaluated cohort of 20 patients, quantitative PCR (qPCR) testing revealed positive results in seven individuals, indicating the presence of C. trachomatis infection. Furthermore, the MA104 N*V cell cultures derived from these infected patients demonstrated successful cultivation and replication of the pathogen, confirming its viability and infectivity. Molecular genotyping identified four distinct urogenital serovars, with serovar D being the most prevalent (4/7), followed by E (1/7), F (1/7), and Ia (1/7). This novel cellular model contributes to studies on C. trachomatis pathogenesis, molecular mechanisms, and host-pathogen interactions both in vitro and in vivo. It also aids in acquiring clinically relevant strains critical for advancing diagnostics, treatments, and vaccines against C. trachomatis.
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Affiliation(s)
- Yuan Wei
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
| | - Xizhan Xu
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
| | - Leying Wang
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
| | - Qiankun Chen
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
| | - Jinsong Li
- Diarrhoeal Laboratory, Institute of Viral Diseases, Chinese Center for Disease Control and Prevention, 155 Changbai Road, Changping District, Beijing 102206, China
| | - Xiafei Liu
- Diarrhoeal Laboratory, Institute of Viral Diseases, Chinese Center for Disease Control and Prevention, 155 Changbai Road, Changping District, Beijing 102206, China
| | - Zhenyu Wei
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
| | - Jinding Pang
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
| | - Yan Peng
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
| | - Xiaoyan Guo
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
| | - Zhen Cheng
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
| | - Zhiqun Wang
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
| | - Yang Zhang
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
| | - Kexin Chen
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
| | - Xinxin Lu
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
| | - Qingfeng Liang
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
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Ni J, Chan K, Marpuri I, Eisenberg J. A Newborn with a Purulent Ocular Discharge. Pediatr Ann 2022; 51:e206-e208. [PMID: 35575542 DOI: 10.3928/19382359-20220314-04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
An 11-day-old girl, who was diagnosed with Neisseria gonorrhoeae ophthalmia neonatorum, presents with a purulent ocular discharge. Although rare in regions with high implementation rates of ocular prophylaxis, ophthalmia neonatorum remains an important diagnostic consideration, especially in developing countries and areas of low socioeconomic status. In this article, we review the evolving epidemiology, diagnostic considerations, prevention, and treatment of ophthalmia neonatorum. [Pediatr Ann. 2022;51(5):e206-e208.].
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Haller-Schober EM, El-Shabrawi Y. Chlamydial conjunctivitis (in adults), uveitis, and reactive arthritis, including SARA. Sexually acquired reactive arthritis. Best Pract Res Clin Obstet Gynaecol 2002; 16:815-28. [PMID: 12473284 DOI: 10.1053/beog.2002.0320] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
This chapter deals with Chlamydia -induced ocular and rheumatic diseases of the adult. All of these may follow a primary urogenital infection with Chlamydia trachomatis in genetically predisposed patients. Besides the infection with Chlamydia trachomatis, infections with Chlamydia pneumoniae and Chlamydia psittaci are also discussed as possible causative agents. Chlamydial conjunctivitis is frequently a secondary infection, and the organism is transferred from the urogenital tract to the eye by autoinoculation. Uveitis and reactive arthritis are believed to be triggered - among other infections - by a preceding urogenital infection. Both of them are closely associated with HLA-B27 positivity. The simultaneous occurrence of uveitis and reactive arthritis is termed Reiter's syndrome. We report on clinical characteristics, diagnosis and the role of Chlamydia in the pathogenesis of chlamydial conjunctivitis, uveitis and reactive arthritis as well as on the currently recommended treatment regimens.
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Affiliation(s)
- Eva Maria Haller-Schober
- Department of Ophthalmology, Hospital of the Karl-Fanzens University Graz, Auenbruggerplatz 4, A - 8036, Graz, Austria
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Hammerschlag MR, Roblin PM, Gelling M, Tsumura N, Jule JE, Kutlin A. Use of polymerase chain reaction for the detection of Chlamydia trachomatis in ocular and nasopharyngeal specimens from infants with conjunctivitis. Pediatr Infect Dis J 1997; 16:293-7. [PMID: 9076818 DOI: 10.1097/00006454-199703000-00008] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Chlamydia trachomatis is the most common identifiable infectious cause of neonatal conjunctivitis. Nonculture tests including enzyme immunoassays and direct fluorescent antibody tests have been shown to perform well for the diagnosis of chlamydial conjunctivitis with sensitivities and specificities > or = 90%. However, the performance with respiratory specimens has been less than satisfactory. METHODS We compared a new, commercially available polymerase chain reaction (PCR) assay, Roche AMPLICOR (Roche Diagnostic Systems, Branchburg, NJ) with culture for the detection of C. trachomatis in conjunctival and nasopharyngeal specimens from infants with conjunctivitis. We also evaluated AMPLICOR for the detection of C. trachomatis in the urine of mothers of positive infants. RESULTS Ocular and nasopharyngeal specimens from 75 infants with conjunctivitis were obtained for culture and PCR. AMPLICOR was equivalent to culture for eye specimens and more sensitive than culture for nasopharyngeal specimens. The sensitivity, specificity and positive and negative predictive values of PCR compared with culture for conjunctival specimens were 92.3, 100, 100 and 98.4%, respectively. The sensitivity, specificity and positive and negative predictive values for nasopharyngeal specimens were 100, 97.2, 60 and 100%, respectively. We also detected C. trachomatis by PCR in the urine of 12 mothers of culture positive infants. CONCLUSIONS PCR performed comparably to culture for detection of C. trachomatis in conjunctival and nasopharyngeal specimens from infants with conjunctivitis.
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Affiliation(s)
- M R Hammerschlag
- Department of Pediatrics, State University of New York Health Science Science Center at Brooklyn 11203-2098, USA.
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Colarizi P, Chiesa C, Pacifico L, Adorisio E, Rossi N, Ranucci A, Sebastiani Annicchiarico L, Panero A. Chlamydia trachomatis-associated respiratory disease in the very early neonatal period. Acta Paediatr 1996; 85:991-4. [PMID: 8863885 DOI: 10.1111/j.1651-2227.1996.tb14200.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Of 103 preterm neonates admitted consecutively to the neonatal intensive care unit soon after birth for respiratory distress, 8 were found to be Chlamydia trachomatis-positive as early as within the first 24 h of life. All these patients required mechanical ventilation and supplemental oxygen. Six infants had evidence on chest radiographs of hyaline membrane disease, one of pneumonia, and one of slight bilateral parenchymal changes. Our results suggest that the presence of C. trachomatis in preterm infants with neonatal respiratory distress is probably not an infrequent event.
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Affiliation(s)
- P Colarizi
- Institute of Paediatrics, La Sapienza University of Rome, Italy
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Haller EM, Stünzner D, Kessler HH, Pierer K, Müllner K, Faulborn J, Marth E. Nachweis von Chlamydia trachomatis in Konjunktival- und Pharyngealabstrichen mittels PCR im Vergleich zu herkömmlichen Methoden. SPEKTRUM DER AUGENHEILKUNDE 1996. [DOI: 10.1007/bf03164166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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