Combinatorial chemistry & high throughput screening · 2026
Indigo, An Extract from Indigo Naturalis, Improves Busulfan-Induced Oligoasthenospermia in Mice by Regulating the Testicular Immune Environment.
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Jiang Mingyu, Zhu Wanqing, Zheng Zihan, Gu Jiale, Liu Kaiyue, Wang Yong, Zhang Xiaoli, Gong Shengnan
Аннотация
INTRODUCTION: Indigo Naturalis, a traditional Chinese medicine primarily composed of indigo, has been documented for anti-inflammatory applications. This study investigated indigo's therapeutic effects and the underlying regulatory mechanisms in mice with busulfan-induced oligoasthenospermia.
METHODS: Mice were divided into three groups: normal control, busulfan-treated, and indigotreated groups (the indigo-treated group received 100 mg/kg indigo through daily intragastric gavage for a consecutive 28-day period). Post-intervention assessments included sperm motility analysis, Hematoxylin-Eosin (HE) staining, and immunofluorescence staining of testis and epididymis, serum Enzyme-Linked Immunosorbent Assay (ELISA), and testicular RNA sequencing.
RESULTS: Indigo treatment effectively alleviated busulfan-induced oligoasthenospermia, as evidenced by increased numbers of spermatogenic cells and sperm count, restored testicular cytoskeletal integrity, elevated serum sex hormone levels (including testosterone), and reduced Malondialdehyde (MDA) and Reactive Oxygen Species (ROS). High-throughput sequencing revealed significant enrichment of genes involved in collagen catabolism and immune responses, with upregulation of anti-inflammatory cytokines and downregulation of pro-inflammatory cytokines. These proteins, encoded by differentially expressed genes, play crucial roles in cytoskeletal organization and in the homeostasis of the testicular immune microenvironment.
DISCUSSION: Indigo mitigates busulfan-induced oligoasthenospermia through multi-target regulation of the testicular microenvironment, supporting its potential as a natural therapeutic agent for male infertility.
CONCLUSION: The therapeutic mechanism of indigo primarily involves modulation of the testicular immune environment.
METHODS: Mice were divided into three groups: normal control, busulfan-treated, and indigotreated groups (the indigo-treated group received 100 mg/kg indigo through daily intragastric gavage for a consecutive 28-day period). Post-intervention assessments included sperm motility analysis, Hematoxylin-Eosin (HE) staining, and immunofluorescence staining of testis and epididymis, serum Enzyme-Linked Immunosorbent Assay (ELISA), and testicular RNA sequencing.
RESULTS: Indigo treatment effectively alleviated busulfan-induced oligoasthenospermia, as evidenced by increased numbers of spermatogenic cells and sperm count, restored testicular cytoskeletal integrity, elevated serum sex hormone levels (including testosterone), and reduced Malondialdehyde (MDA) and Reactive Oxygen Species (ROS). High-throughput sequencing revealed significant enrichment of genes involved in collagen catabolism and immune responses, with upregulation of anti-inflammatory cytokines and downregulation of pro-inflammatory cytokines. These proteins, encoded by differentially expressed genes, play crucial roles in cytoskeletal organization and in the homeostasis of the testicular immune microenvironment.
DISCUSSION: Indigo mitigates busulfan-induced oligoasthenospermia through multi-target regulation of the testicular microenvironment, supporting its potential as a natural therapeutic agent for male infertility.
CONCLUSION: The therapeutic mechanism of indigo primarily involves modulation of the testicular immune environment.