PMID- 38036049 OWN - NLM STAT- MEDLINE DCOM- 20240214 LR - 20240214 IS - 1879-0089 (Electronic) IS - 0145-305X (Linking) VI - 153 DP - 2024 Apr TI - DNase I rescues goat sperm entrapped by neutrophil extracellular traps. PG - 105107 LID - S0145-305X(23)01260-0 [pii] LID - 10.1016/j.dci.2023.105107 [doi] AB - Artificial insemination has been a predominant technique employed in goat husbandry for breeding purposes. Subsequent to artificial insemination, sperm can elicit inflammation in the reproductive tract, resulting in substantial the accumulation of neutrophils. Recognized as foreign entities, sperm may become entrapped within neutrophil extracellular traps (NETs) released by neutrophils, thereby exploiting their properties of pathogen elimination. Deoxyribonuclease I (DNase I), which is known for disintegrating NETs and causing loss of function, has been utilized to ameliorate liver and brain damage resulting from NETs, as well as to enhance sperm quality. This study investigated the mechanism of sperm-induced NETs and further explored the impact of DNase I on NETs. Sperm quality was evaluated using optical microscopy, while the structure of NETs was observed through immunofluorescence staining. The formation mechanism of NETs was examined using inhibitors and PicoGreen. The findings revealed that sperm induced the formation of NETs, a process regulated by glycolysis, NADPH oxidase, ERK(1/2), and p38 signaling pathways. The composition of NETs encompassed DNA, citrullinated histone H3 (citH3), and elastase (NE). DNase I protects sperm by degrading NETs, thereby concurrently preserving the integrity of plasma membrane and motility of sperm. In summary, the release of sperm-induced NETs leads to its damage, but this detrimental effect is counteracted by DNase I through degradation of NETs. These observations provide novel insights into reproductive immunity in goats. CI - Copyright (c) 2023 Elsevier Ltd. All rights reserved. FAU - Wei, Zhengkai AU - Wei Z AD - College of Veterinary Medicine, Southwest University, Chongqing, 400715, PR China; College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, PR China. Electronic address: wei_zhengkai@126.com. FAU - Hong, Hongrong AU - Hong H AD - College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, PR China. FAU - Liu, Wei AU - Liu W AD - College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, PR China. FAU - Jiang, Liqiang AU - Jiang L AD - College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, PR China. FAU - Xu, Jingnan AU - Xu J AD - College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, PR China. FAU - Gao, Xinxin AU - Gao X AD - College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, PR China. FAU - Qian, Yuxiao AU - Qian Y AD - College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, PR China. FAU - Jiang, Yuqian AU - Jiang Y AD - College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, PR China. FAU - Jin, Zha AU - Jin Z AD - College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, PR China. FAU - Jin, Qinqin AU - Jin Q AD - College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, PR China. FAU - Chen, Meiyi AU - Chen M AD - College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, PR China. FAU - Yang, Zhengtao AU - Yang Z AD - College of Life Sciences and Engineering, Foshan University, Foshan, 528225, Guangdong Province, PR China. Electronic address: yangzhengtao01@sina.com. LA - eng PT - Journal Article DEP - 20231128 PL - United States TA - Dev Comp Immunol JT - Developmental and comparative immunology JID - 7708205 RN - EC 3.1.21.1 (Deoxyribonuclease I) SB - IM MH - Male MH - Animals MH - *Extracellular Traps/metabolism MH - Goats MH - Semen MH - Neutrophils MH - Spermatozoa MH - Deoxyribonuclease I/metabolism/pharmacology OTO - NOTNLM OT - Deoxyribonuclease I OT - Goat sperm OT - Neutrophil extracellular traps OT - Reproductive immunity COIS- Declaration of competing interest Authors declare no conflict of interest associated with this study. EDAT- 2023/12/01 00:43 MHDA- 2024/02/10 10:50 CRDT- 2023/11/30 21:54 PHST- 2023/09/02 00:00 [received] PHST- 2023/11/02 00:00 [revised] PHST- 2023/11/23 00:00 [accepted] PHST- 2024/02/10 10:50 [medline] PHST- 2023/12/01 00:43 [pubmed] PHST- 2023/11/30 21:54 [entrez] AID - S0145-305X(23)01260-0 [pii] AID - 10.1016/j.dci.2023.105107 [doi] PST - ppublish SO - Dev Comp Immunol. 2024 Apr;153:105107. doi: 10.1016/j.dci.2023.105107. Epub 2023 Nov 28.