Transcriptomics,Genomics

Dataset Information

18

Molecular Characterization of Tannerella forsythia infection-induced bone and soft tissue transcriptional profiles


ABSTRACT: The objectives of this investigation were to examine changes in the host transcriptional profiles during a Tannerella forsythia infection using a murine calvarial model of inflammation and bone resorption. T. forsythia ATCC 43037 was injected into the subcutaneous soft tissue over the calvaria of BALB/c mice for 3 days, after which the soft tissues and calvarial bones were excised. RNA was isolated from infected soft tissues and calvarial bones and analyzed for transcript profiles using Murine GeneChip® MG-MOE430A Affymetrix arrays to provide a molecular profile of the events that occur following infection of these tissues. We used mouse microarrays to detail the molecular profile of the events that occur following infection of calvarial and bone tissues and identified distinct classes of up- and down-regulated genes during this process. Overall design: T. forsythia was injected at 1.5 x 109 (N = 10) into the soft tissues overlying the calvaria of the mice for 3 days. A control group (N = 9) was injected with vehicle once daily for 3 days. Mice were euthanized 8 h after the last injection. The calvarial bones and overlying soft tissues from 5 mice in each group were excised, snap frozen in liquid nitrogen, and stored at –80°C until RNA isolation. Total RNA was isolated from the frozen calvarial tissue and calvarial bone from each mouse (T. forsythia infected and control animals, N = 3-5 in each group) with Trizol reagent (Invitrogen, CA). Equal amounts of RNA from samples were labeled and hybridized on a mouse GeneChip following the protocol described in the GeneChip Expression Analysis Technical manual (Affymetrix, Santa Clara, CA). After hybridization, the GeneChip arrays were stained and scanned in an Affymetrix GCS 3000 7G Scanner.

INSTRUMENT(S): [MOE430A] Affymetrix Mouse Expression 430A Array

SUBMITTER: Kesavalu Naidu Lakshmyya  

PROVIDER: GSE20389 | GEO | 2011-02-07

SECONDARY ACCESSION(S): PRJNA125513

REPOSITORIES: GEO

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Publications

Tannerella forsythia infection-induced calvarial bone and soft tissue transcriptional profiles.

Bakthavatchalu V V   Meka A A   Sathishkumar S S   Lopez M C MC   Bhattacharyya I I   Boyce B F BF   Mans J J JJ   Lamont R J RJ   Baker H V HV   Ebersole J L JL   Kesavalu L L  

Molecular oral microbiology 20101001 5


Tannerella forsythia is associated with subgingival biofilms in adult periodontitis, although the molecular mechanisms contributing to chronic inflammation and loss of periodontal bone remain unclear. We examined changes in the host transcriptional profiles during a T. forsythia infection using a murine calvarial model of inflammation and bone resorption. Tannerella forsythia was injected into the subcutaneous soft tissue over calvariae of BALB/c mice for 3 days, after which the soft tissues and  ...[more]

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