Gram-positive pathogenic bacteria induce a common early response in human monocytes

Background We infected freshly isolated human peripheral monocytes with live bacteria of three clinically important gram-positive bacterial species, Staphylococcus aureus, Streptococcus pneumoniae and Listeria monocytogenes and studied the ensuing early transcriptional response using expression micr...
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Autor*in:	Tchatalbachev, Svetlin [verfasserIn] Ghai, Rohit Hossain, Hamid Chakraborty, Trinad

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2010

Schlagwörter:	Inhibin Peripheral Monocyte Vascular Epithelium Growth Factor Human Peripheral Monocyte Early Transcriptional Response

Anmerkung:	© Tchatalbachev et al; licensee BioMed Central Ltd. 2010

Übergeordnetes Werk:	Enthalten in: BMC microbiology - London : BioMed Central, 2001, 10(2010), 1 vom: 02. Nov.
Übergeordnetes Werk:	volume:10 ; year:2010 ; number:1 ; day:02 ; month:11

Links:	Volltext

DOI / URN:	10.1186/1471-2180-10-275

Katalog-ID:	SPR027185877

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520			\|a Background We infected freshly isolated human peripheral monocytes with live bacteria of three clinically important gram-positive bacterial species, Staphylococcus aureus, Streptococcus pneumoniae and Listeria monocytogenes and studied the ensuing early transcriptional response using expression microarrays. Thus the observed response was unbiased by signals originating from other helper and effector cells of the host and was not limited to induction by solitary bacterial constituents. Results Activation of monocytes was demonstrated by the upregulation of chemokine rather than interleukin genes except for the prominent expression of interleukin 23, marking it as the early lead cytokine. This activation was accompanied by cytoskeleton rearrangement signals and a general anti-oxidative stress and anti-apoptotic reaction. Remarkably, the expression profiles also provide evidence that monocytes participate in the regulation of angiogenesis and endothelial function in response to these pathogens. Conclusion Regardless of the invasion properties and survival mechanisms of the pathogens used, we found that the early response comprised of a consistent and common response. The common response was hallmarked by the upregulation of interleukin 23, a rather unexpected finding regarding Listeria infection, as this cytokine has been linked primarily to the control of extracellular bacterial dissemination.
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matchkey_str	article:14712180:2010----::rmoiieahgncatranuecmoeryepn
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publishDate	2010
allfields	10.1186/1471-2180-10-275 doi (DE-627)SPR027185877 (SPR)1471-2180-10-275-e DE-627 ger DE-627 rakwb eng Tchatalbachev, Svetlin verfasserin aut Gram-positive pathogenic bacteria induce a common early response in human monocytes 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Tchatalbachev et al; licensee BioMed Central Ltd. 2010 Background We infected freshly isolated human peripheral monocytes with live bacteria of three clinically important gram-positive bacterial species, Staphylococcus aureus, Streptococcus pneumoniae and Listeria monocytogenes and studied the ensuing early transcriptional response using expression microarrays. Thus the observed response was unbiased by signals originating from other helper and effector cells of the host and was not limited to induction by solitary bacterial constituents. Results Activation of monocytes was demonstrated by the upregulation of chemokine rather than interleukin genes except for the prominent expression of interleukin 23, marking it as the early lead cytokine. This activation was accompanied by cytoskeleton rearrangement signals and a general anti-oxidative stress and anti-apoptotic reaction. Remarkably, the expression profiles also provide evidence that monocytes participate in the regulation of angiogenesis and endothelial function in response to these pathogens. Conclusion Regardless of the invasion properties and survival mechanisms of the pathogens used, we found that the early response comprised of a consistent and common response. The common response was hallmarked by the upregulation of interleukin 23, a rather unexpected finding regarding Listeria infection, as this cytokine has been linked primarily to the control of extracellular bacterial dissemination. Inhibin (dpeaa)DE-He213 Peripheral Monocyte (dpeaa)DE-He213 Vascular Epithelium Growth Factor (dpeaa)DE-He213 Human Peripheral Monocyte (dpeaa)DE-He213 Early Transcriptional Response (dpeaa)DE-He213 Ghai, Rohit aut Hossain, Hamid aut Chakraborty, Trinad aut Enthalten in BMC microbiology London : BioMed Central, 2001 10(2010), 1 vom: 02. Nov. (DE-627)326644997 (DE-600)2041505-9 1471-2180 nnns volume:10 year:2010 number:1 day:02 month:11 https://dx.doi.org/10.1186/1471-2180-10-275 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 10 2010 1 02 11
spelling	10.1186/1471-2180-10-275 doi (DE-627)SPR027185877 (SPR)1471-2180-10-275-e DE-627 ger DE-627 rakwb eng Tchatalbachev, Svetlin verfasserin aut Gram-positive pathogenic bacteria induce a common early response in human monocytes 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Tchatalbachev et al; licensee BioMed Central Ltd. 2010 Background We infected freshly isolated human peripheral monocytes with live bacteria of three clinically important gram-positive bacterial species, Staphylococcus aureus, Streptococcus pneumoniae and Listeria monocytogenes and studied the ensuing early transcriptional response using expression microarrays. Thus the observed response was unbiased by signals originating from other helper and effector cells of the host and was not limited to induction by solitary bacterial constituents. Results Activation of monocytes was demonstrated by the upregulation of chemokine rather than interleukin genes except for the prominent expression of interleukin 23, marking it as the early lead cytokine. This activation was accompanied by cytoskeleton rearrangement signals and a general anti-oxidative stress and anti-apoptotic reaction. Remarkably, the expression profiles also provide evidence that monocytes participate in the regulation of angiogenesis and endothelial function in response to these pathogens. Conclusion Regardless of the invasion properties and survival mechanisms of the pathogens used, we found that the early response comprised of a consistent and common response. The common response was hallmarked by the upregulation of interleukin 23, a rather unexpected finding regarding Listeria infection, as this cytokine has been linked primarily to the control of extracellular bacterial dissemination. Inhibin (dpeaa)DE-He213 Peripheral Monocyte (dpeaa)DE-He213 Vascular Epithelium Growth Factor (dpeaa)DE-He213 Human Peripheral Monocyte (dpeaa)DE-He213 Early Transcriptional Response (dpeaa)DE-He213 Ghai, Rohit aut Hossain, Hamid aut Chakraborty, Trinad aut Enthalten in BMC microbiology London : BioMed Central, 2001 10(2010), 1 vom: 02. Nov. (DE-627)326644997 (DE-600)2041505-9 1471-2180 nnns volume:10 year:2010 number:1 day:02 month:11 https://dx.doi.org/10.1186/1471-2180-10-275 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 10 2010 1 02 11
allfields_unstemmed	10.1186/1471-2180-10-275 doi (DE-627)SPR027185877 (SPR)1471-2180-10-275-e DE-627 ger DE-627 rakwb eng Tchatalbachev, Svetlin verfasserin aut Gram-positive pathogenic bacteria induce a common early response in human monocytes 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Tchatalbachev et al; licensee BioMed Central Ltd. 2010 Background We infected freshly isolated human peripheral monocytes with live bacteria of three clinically important gram-positive bacterial species, Staphylococcus aureus, Streptococcus pneumoniae and Listeria monocytogenes and studied the ensuing early transcriptional response using expression microarrays. Thus the observed response was unbiased by signals originating from other helper and effector cells of the host and was not limited to induction by solitary bacterial constituents. Results Activation of monocytes was demonstrated by the upregulation of chemokine rather than interleukin genes except for the prominent expression of interleukin 23, marking it as the early lead cytokine. This activation was accompanied by cytoskeleton rearrangement signals and a general anti-oxidative stress and anti-apoptotic reaction. Remarkably, the expression profiles also provide evidence that monocytes participate in the regulation of angiogenesis and endothelial function in response to these pathogens. Conclusion Regardless of the invasion properties and survival mechanisms of the pathogens used, we found that the early response comprised of a consistent and common response. The common response was hallmarked by the upregulation of interleukin 23, a rather unexpected finding regarding Listeria infection, as this cytokine has been linked primarily to the control of extracellular bacterial dissemination. Inhibin (dpeaa)DE-He213 Peripheral Monocyte (dpeaa)DE-He213 Vascular Epithelium Growth Factor (dpeaa)DE-He213 Human Peripheral Monocyte (dpeaa)DE-He213 Early Transcriptional Response (dpeaa)DE-He213 Ghai, Rohit aut Hossain, Hamid aut Chakraborty, Trinad aut Enthalten in BMC microbiology London : BioMed Central, 2001 10(2010), 1 vom: 02. Nov. (DE-627)326644997 (DE-600)2041505-9 1471-2180 nnns volume:10 year:2010 number:1 day:02 month:11 https://dx.doi.org/10.1186/1471-2180-10-275 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 10 2010 1 02 11
allfieldsGer	10.1186/1471-2180-10-275 doi (DE-627)SPR027185877 (SPR)1471-2180-10-275-e DE-627 ger DE-627 rakwb eng Tchatalbachev, Svetlin verfasserin aut Gram-positive pathogenic bacteria induce a common early response in human monocytes 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Tchatalbachev et al; licensee BioMed Central Ltd. 2010 Background We infected freshly isolated human peripheral monocytes with live bacteria of three clinically important gram-positive bacterial species, Staphylococcus aureus, Streptococcus pneumoniae and Listeria monocytogenes and studied the ensuing early transcriptional response using expression microarrays. Thus the observed response was unbiased by signals originating from other helper and effector cells of the host and was not limited to induction by solitary bacterial constituents. Results Activation of monocytes was demonstrated by the upregulation of chemokine rather than interleukin genes except for the prominent expression of interleukin 23, marking it as the early lead cytokine. This activation was accompanied by cytoskeleton rearrangement signals and a general anti-oxidative stress and anti-apoptotic reaction. Remarkably, the expression profiles also provide evidence that monocytes participate in the regulation of angiogenesis and endothelial function in response to these pathogens. Conclusion Regardless of the invasion properties and survival mechanisms of the pathogens used, we found that the early response comprised of a consistent and common response. The common response was hallmarked by the upregulation of interleukin 23, a rather unexpected finding regarding Listeria infection, as this cytokine has been linked primarily to the control of extracellular bacterial dissemination. Inhibin (dpeaa)DE-He213 Peripheral Monocyte (dpeaa)DE-He213 Vascular Epithelium Growth Factor (dpeaa)DE-He213 Human Peripheral Monocyte (dpeaa)DE-He213 Early Transcriptional Response (dpeaa)DE-He213 Ghai, Rohit aut Hossain, Hamid aut Chakraborty, Trinad aut Enthalten in BMC microbiology London : BioMed Central, 2001 10(2010), 1 vom: 02. Nov. (DE-627)326644997 (DE-600)2041505-9 1471-2180 nnns volume:10 year:2010 number:1 day:02 month:11 https://dx.doi.org/10.1186/1471-2180-10-275 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 10 2010 1 02 11
allfieldsSound	10.1186/1471-2180-10-275 doi (DE-627)SPR027185877 (SPR)1471-2180-10-275-e DE-627 ger DE-627 rakwb eng Tchatalbachev, Svetlin verfasserin aut Gram-positive pathogenic bacteria induce a common early response in human monocytes 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Tchatalbachev et al; licensee BioMed Central Ltd. 2010 Background We infected freshly isolated human peripheral monocytes with live bacteria of three clinically important gram-positive bacterial species, Staphylococcus aureus, Streptococcus pneumoniae and Listeria monocytogenes and studied the ensuing early transcriptional response using expression microarrays. Thus the observed response was unbiased by signals originating from other helper and effector cells of the host and was not limited to induction by solitary bacterial constituents. Results Activation of monocytes was demonstrated by the upregulation of chemokine rather than interleukin genes except for the prominent expression of interleukin 23, marking it as the early lead cytokine. This activation was accompanied by cytoskeleton rearrangement signals and a general anti-oxidative stress and anti-apoptotic reaction. Remarkably, the expression profiles also provide evidence that monocytes participate in the regulation of angiogenesis and endothelial function in response to these pathogens. Conclusion Regardless of the invasion properties and survival mechanisms of the pathogens used, we found that the early response comprised of a consistent and common response. The common response was hallmarked by the upregulation of interleukin 23, a rather unexpected finding regarding Listeria infection, as this cytokine has been linked primarily to the control of extracellular bacterial dissemination. Inhibin (dpeaa)DE-He213 Peripheral Monocyte (dpeaa)DE-He213 Vascular Epithelium Growth Factor (dpeaa)DE-He213 Human Peripheral Monocyte (dpeaa)DE-He213 Early Transcriptional Response (dpeaa)DE-He213 Ghai, Rohit aut Hossain, Hamid aut Chakraborty, Trinad aut Enthalten in BMC microbiology London : BioMed Central, 2001 10(2010), 1 vom: 02. Nov. (DE-627)326644997 (DE-600)2041505-9 1471-2180 nnns volume:10 year:2010 number:1 day:02 month:11 https://dx.doi.org/10.1186/1471-2180-10-275 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 10 2010 1 02 11
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source	Enthalten in BMC microbiology 10(2010), 1 vom: 02. Nov. volume:10 year:2010 number:1 day:02 month:11
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author	Tchatalbachev, Svetlin
spellingShingle	Tchatalbachev, Svetlin misc Inhibin misc Peripheral Monocyte misc Vascular Epithelium Growth Factor misc Human Peripheral Monocyte misc Early Transcriptional Response Gram-positive pathogenic bacteria induce a common early response in human monocytes
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topic_title	Gram-positive pathogenic bacteria induce a common early response in human monocytes Inhibin (dpeaa)DE-He213 Peripheral Monocyte (dpeaa)DE-He213 Vascular Epithelium Growth Factor (dpeaa)DE-He213 Human Peripheral Monocyte (dpeaa)DE-He213 Early Transcriptional Response (dpeaa)DE-He213
topic	misc Inhibin misc Peripheral Monocyte misc Vascular Epithelium Growth Factor misc Human Peripheral Monocyte misc Early Transcriptional Response
topic_unstemmed	misc Inhibin misc Peripheral Monocyte misc Vascular Epithelium Growth Factor misc Human Peripheral Monocyte misc Early Transcriptional Response
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title	Gram-positive pathogenic bacteria induce a common early response in human monocytes
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title_full	Gram-positive pathogenic bacteria induce a common early response in human monocytes
author_sort	Tchatalbachev, Svetlin
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author_browse	Tchatalbachev, Svetlin Ghai, Rohit Hossain, Hamid Chakraborty, Trinad
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title_sort	gram-positive pathogenic bacteria induce a common early response in human monocytes
title_auth	Gram-positive pathogenic bacteria induce a common early response in human monocytes
abstract	Background We infected freshly isolated human peripheral monocytes with live bacteria of three clinically important gram-positive bacterial species, Staphylococcus aureus, Streptococcus pneumoniae and Listeria monocytogenes and studied the ensuing early transcriptional response using expression microarrays. Thus the observed response was unbiased by signals originating from other helper and effector cells of the host and was not limited to induction by solitary bacterial constituents. Results Activation of monocytes was demonstrated by the upregulation of chemokine rather than interleukin genes except for the prominent expression of interleukin 23, marking it as the early lead cytokine. This activation was accompanied by cytoskeleton rearrangement signals and a general anti-oxidative stress and anti-apoptotic reaction. Remarkably, the expression profiles also provide evidence that monocytes participate in the regulation of angiogenesis and endothelial function in response to these pathogens. Conclusion Regardless of the invasion properties and survival mechanisms of the pathogens used, we found that the early response comprised of a consistent and common response. The common response was hallmarked by the upregulation of interleukin 23, a rather unexpected finding regarding Listeria infection, as this cytokine has been linked primarily to the control of extracellular bacterial dissemination. © Tchatalbachev et al; licensee BioMed Central Ltd. 2010
abstractGer	Background We infected freshly isolated human peripheral monocytes with live bacteria of three clinically important gram-positive bacterial species, Staphylococcus aureus, Streptococcus pneumoniae and Listeria monocytogenes and studied the ensuing early transcriptional response using expression microarrays. Thus the observed response was unbiased by signals originating from other helper and effector cells of the host and was not limited to induction by solitary bacterial constituents. Results Activation of monocytes was demonstrated by the upregulation of chemokine rather than interleukin genes except for the prominent expression of interleukin 23, marking it as the early lead cytokine. This activation was accompanied by cytoskeleton rearrangement signals and a general anti-oxidative stress and anti-apoptotic reaction. Remarkably, the expression profiles also provide evidence that monocytes participate in the regulation of angiogenesis and endothelial function in response to these pathogens. Conclusion Regardless of the invasion properties and survival mechanisms of the pathogens used, we found that the early response comprised of a consistent and common response. The common response was hallmarked by the upregulation of interleukin 23, a rather unexpected finding regarding Listeria infection, as this cytokine has been linked primarily to the control of extracellular bacterial dissemination. © Tchatalbachev et al; licensee BioMed Central Ltd. 2010
abstract_unstemmed	Background We infected freshly isolated human peripheral monocytes with live bacteria of three clinically important gram-positive bacterial species, Staphylococcus aureus, Streptococcus pneumoniae and Listeria monocytogenes and studied the ensuing early transcriptional response using expression microarrays. Thus the observed response was unbiased by signals originating from other helper and effector cells of the host and was not limited to induction by solitary bacterial constituents. Results Activation of monocytes was demonstrated by the upregulation of chemokine rather than interleukin genes except for the prominent expression of interleukin 23, marking it as the early lead cytokine. This activation was accompanied by cytoskeleton rearrangement signals and a general anti-oxidative stress and anti-apoptotic reaction. Remarkably, the expression profiles also provide evidence that monocytes participate in the regulation of angiogenesis and endothelial function in response to these pathogens. Conclusion Regardless of the invasion properties and survival mechanisms of the pathogens used, we found that the early response comprised of a consistent and common response. The common response was hallmarked by the upregulation of interleukin 23, a rather unexpected finding regarding Listeria infection, as this cytokine has been linked primarily to the control of extracellular bacterial dissemination. © Tchatalbachev et al; licensee BioMed Central Ltd. 2010
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title_short	Gram-positive pathogenic bacteria induce a common early response in human monocytes
url	https://dx.doi.org/10.1186/1471-2180-10-275
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author2	Ghai, Rohit Hossain, Hamid Chakraborty, Trinad
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up_date	2024-07-04T00:47:14.912Z
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Thus the observed response was unbiased by signals originating from other helper and effector cells of the host and was not limited to induction by solitary bacterial constituents. Results Activation of monocytes was demonstrated by the upregulation of chemokine rather than interleukin genes except for the prominent expression of interleukin 23, marking it as the early lead cytokine. This activation was accompanied by cytoskeleton rearrangement signals and a general anti-oxidative stress and anti-apoptotic reaction. Remarkably, the expression profiles also provide evidence that monocytes participate in the regulation of angiogenesis and endothelial function in response to these pathogens. Conclusion Regardless of the invasion properties and survival mechanisms of the pathogens used, we found that the early response comprised of a consistent and common response. 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Gram-positive pathogenic bacteria induce a common early response in human monocytes

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