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. 2022 Aug 12;10:53. doi: 10.1038/s41413-022-00227-8

Table 3.

Overview of cell wall disruptors tested against intracellular S. aureus

Antibiotic Class Antibiotic Bone: plasma ratio Bone concentration Intra- to extracellular ratio MIC at ca pH5 (μg·mL−1 or mg·L−1) MIC at ca pH7 (μg·mL−1 or mg·L−1) Intracellular effectivity against S. aureus Model tested
bone cell Other cells In vivo
Beta-lactam antibiotics Oxacillin

0.1107

0.1140

0.1753

4 μg·mL−141

10 μg·mL−153

4.074

<0.015–0.062 543

0.0674

0.016 MSSA, 0.023 MRSA153

0.125 SCV & 0.5 WT17

0.09453

<0.015–0.062 543

0.12574

0.25 MSSA, > 256 MRSA153

SCV 1-log, more effective against the WT17

4-log (dose depending), SCV emergence reduction53

2-log, time depending74

<1-log153

MG6353,153 THP-117,74
Cefatroline 0.1953 4 μg·mL−153 0.006 MSSA, 0.008 MRSA153

0.1953

0.125 MSSA, 0.25 MRSA153

2-log, SCV induction53

<1-log, similar MRSA/MSSA153

MG6353,153
Cefuroxime 0.04–0.5540 <1-log immediately, no effect after 7d55 pHOBs55 C57BL/6 mice55
Cefazolin

0.75–0.37107

0.1840

3–30 μg·g−1107

4.2 μg·mL−141

0.03–0.12543 0.062 50–0.543 No effect58,141

UMR10658

MC3T3141

Flucloxacillin 89.5 μg·mL−141 <1-log immediately, no effect after 7d55 pHOBs55
Ampicillin

0.17–0.33107

0.11–0.7140

12–20 μg·g−1107 1.074

0.03150

0.0374

0.0674

0.07150

1-log74

No effect (1 h)141

1-log, time depending less dose depending150

MC3T3141 THP-174,150
Dicloxacillin 3.8 μg·mL−141 ns (ca log1) decrease of bacteria, but can be increased by adding efflux inhibitors (piperine or cyanide m-chlorophenyl hydrazone)152 Saos-2152
Nafcillin 2.674 0.0674 0.2574 1-log74 THP-174
Penicillin V 1.274 <0.01574 0.0674 1-log74 THP-174
Penicillin G <0.1-log157 A594157
Ertapenem 0.13–0.1940 0.06150 0.11150 1-log, time depending less dose depending150 THP-1150
Meropenem 0.06150 0.15150 1-log, time depending less dose depending150 THP-1150
Glycopeptides Vancomycin

0.05–0.21107

0.05–0.9740

0.2153

1.1–3.6 μg·mL−1107

3.8–4.5 μg·mL−141

6 μg·mL−153

6.374

1 SCV & 0.5 WT125

0.125–143

174

0.5 SCV & WT17

1.553

1 SCV & 0.5 WT125

0.25–243

174

231

SCV, in beginning growth, max 1-log, WT much more effective17

Ns effect141,162,164

Max 1-log31,125,144,152,166 immediately & after 7d55

1-log dose and time dependent74

Ns bacterial growth53

2-log163

MG6353,144

pHOBs55

MC3T3141

Saos-2152

THP-117,74,125,163

A594166

J774162

RAW264.7164,166

Sprague-Dawley rats31

Kunming mice166

Oritavancin 27–65 μg·mL−141

14874

336–34475 (highest by far)

0.2574,75

0.125 SCV & 0.25–1 WT125

0.015 SCV & 0.03 WT17

0.0774

0.2575

0.03–0.06125

3-log against SCV (best drug of 13)17

3-log strongly time & dose dependent74

4-log dose depending125

3.5-log all phenotypes75

THP-117,74,125

J77475

Teicoplanin

0.5–0.8540

0.2153

3 μg·mL−153 7.474

0.0625–243

174

0.25–0.543

1.553

174

3-4-log53

<1-log74

MG6353 THP-174
Telavancin 0.125 all phenotypes17 <1-log SCV, WT better17 THP-117
Fosfomycin

0.25107

0.13–0.4540

0.3553

16-96 μg·g−1107

4 μg·mL−153

1–1643

253

0.25–843

3-log no dose depending53

Immediately effective not after 7d55

MG6353

pHOBs55

Lipopeptides Daptomycin

0.07107

0.2453

5 μg·g−1107

5 μg·mL−153

0.5 SCV & WT125

0.75 MSSA, 0.19 MRSA153

443

0.125 SCV & WT17

0.1953

0.5–2 WT, 0.25–0.5 SCV125

0.064 MSSA, 0.19 MRSA153

1–243

SCV 1-log, WT better17

Ns/ bacterial growth43,53,153

2-log125

<1-log immediately, after 7d ns55

<1-log178

MG6343,53,153,178

pHOBs55

THP-117,125 C57BL/6 mice178