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Proteomic profiling of bovine milk somatic cells in response to different bacterial specise

ABSTRACT: Mastitis, one of the most significant diseases affecting dairy cattle, is caused by diverse bacterial pathogens that elicit distinct host immune responses. To gain deeper insight into the molecular mechanisms underlying these pathogen-specific interactions, we conducted a comprehensive proteomic analysis of bovine somatic cells isolated from milk in relation to the bacterial species present. The study included 56 quarter-level samples collected from 24 dairy cows. Samples were grouped according to pathogen categories based on the taxonomic similarity derived from 16S rRNA amplicon sequencing. Proteomic profiling revealed patterns of protein expression associated with mastitis in general, as well as distinct, pathogen-dependent signatures. This dataset provides valuable insights into host-pathogen interactions in the bovine mammary gland

INSTRUMENT(S):

ORGANISM(S): Bos Taurus (bovine)

SUBMITTER: Alicja Krysmann

LAB HEAD: Davide Porcellato

PROVIDER: PXD069681 | Pride | 2026-04-17

REPOSITORIES: Pride

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Dataset's files

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			Action	DRS
	H042-Slot2-13-1-5819.d.zip	Other
	H044-Slot2-29-1-4100.d.zip	Other
	H046-Slot2-14-1-5820.d.zip	Other
	H047-Slot2-15-1-5821.d.zip	Other
	H058-Slot2-16-1-5822.d.zip	Other

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Project description:Bovine mastitis, the infection of the mammary gland which leads to great health and economic challenges for dairy farmers is accompanied by dramatic changes in the milk proteome. In this study of naturally occurring mastitis not only have the changes in the milk proteome been quantified in subclinical and clinical mastitis but simultaneous changes in the serum proteome have also been characterised and quantified. Milk and serum samples from healthy dairy cows (n=12) were compared to those of cows with subclinical (n=10) and clinical mastitis (n=112) using TMT label-based proteomic approach. The study included the milk and serum samples taken from thirty-two dairy cows ( kept on private farms located in Croatia. All cows were checked by physical examination. Somatic cells count (SCC) and mastitis test in milk samples were performed. According to the results, cows were assigned into three groups: Group I (control, n=10) consisted of healthy cows with SCC below 400,000 cells/ml on the monthly check-up and a negative mastitis test and without any clinical sign of mastitis. Group II (subclinical mastitis, n=12) comprised cows without clinical signs of mastitis but with SCC above 400,000 cells/ml on the monthly basis and a positive mastitis test at the time of sampling. Group III (clinical mastitis, n=10) consisted of cows with clinical signs of mastitis which include changes in milk appearance (flakes and clots in milk), different stages of udder inflammation (hyperemia, edema, pain, udder enlargement and elevated udder temperature) and disturbance of general health (depression, relaxed cold ears, dehydration, elevated body temperature, increased heart and respiratory rate, decreased ruminal contraction and decreased appetite). Blood samples were taken from v. coccygea and centrifuged at 3000 g for 15 min after clotting for two hours at room temperature. Serum samples were stored at -80°C until analysis. Milk samples were taken aseptically before the morning milking. First few streams were discarded. Teat ends were disinfected with cotton swabs soaked with 70% ethanol. Samples were taken into sterile tubes and transported to laboratory on ice within a few hours.

Dataset Information

Proteomic profiling of bovine milk somatic cells in response to different bacterial specise

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