Target, Technique, and Tissue: A Triple Diagnostic Lens on Chlamydia Trachomatis Detection

Sri Wahyuni¹, Willy Sandhika^2*, Ashon Saadi³, Lukman Nur Rahman⁴, Imanta Alifia Octavira⁴

Abstract

Background: One of the most common sexually transmitted bacterial diseases, Chlamydia trachomatis (CT), is a major contributor to female infertility and reproductive tract infections, especially in low-resource environments. Controlling its spread requires accurate and easily available diagnostic tools, but because of the distinct intracellular biology of CT, many traditional approaches are ineffective. With an emphasis on target antigens, methodological comparison with immunofluorescence, and the impact of sampling locations on diagnostic accuracy, this review attempts to assess the diagnostic capability of immunohistochemistry (IHC) in detecting Chlamydia trachomatis. Methods: Using databases including PubMed, Scopus, Web of Science, ProQuest, Google Scholar, and Google, a narrative literature review was carried out. Initially, titles and abstracts were used to pick articles, and keywords like “Immunohistochemistry,” “Chlamydia trachomatis,” and “diagnostic” were used. Reference lists of pertinent studies were also manually searched. Experiments and studies involving animals were not included. Studies using immunohistochemical methods and their contributions to CT diagnosis were the main focus of the final inclusion. Results: Immunohistochemistry (IHC)  overcomes diagnostic obstacles brought on by the bacterium’s internal location and absence of obvious symptoms by enabling the direct imaging of CT antigens, especially the Major Outer Membrane Protein (MOMP), within the cytoplasm of infected epithelial cells. IHC is appropriate for formalin-fixed paraffin-embedded (FFPE) tissue samples and can be used in retrospective or resource-constrained contexts because it does not require living organisms or intact nucleic acids, in contrast to culture or nucleic acid amplification tests (NAATs). Conclusion: Many traditional diagnostic methods are limited in their usefulness by Chlamydia trachomatis’s intracellular origin, immune evasion mechanisms, and asymptomatic persistence. An option that makes biological sense and is useful is immunohistochemistry, especially in places with limited resources. Future diagnostic frameworks have to give preference to techniques such as immunohistochemistry (IHC) that complement the distinct pathophysiology of the organism while fostering advancements in antibody synthesis and integration with reasonably priced molecular platforms.

Keywords

reproductive health; sexually transmitted disease; Chlamydia trachomatis; immunohistochemistry diagnosis.

Cite This Article

Wahyuni, S., Sandhika, W., Saadi, A., Rahman, L. N., Octavira, I. A. (2025). Target, Technique, and Tissue: A Triple Diagnostic Lens on Chlamydia Trachomatis Detection. International Journal of Scientific Advances (IJSCIA), Volume 6| Issue 5: Sep – Oct 2025, Pages 966-973 URL: https://www.ijscia.com/wp-content/uploads/2025/10/Volume6-Issue5-Sep-Oct-No.959-966-973.pdf

Volume 6 | Issue 5: Sep – Oct 2025