Authors: Trevor G Marshall, PhD(1), and Frances E Marshall, Grad Dip Pharm, RPh(2) Authors Affiliation:
1AutoimmunityResearch.org, Thousand Oaks, California
2Los Robles Regional Medical Center, Thousand Oaks, California 91360 email corresponding author: Trevor.firstname.lastname@example.org
Date Received: 30 July 2003
Date Published: 31 July 2003
Article Type: Review
Cite this paper as:
Marshall TG, Marshall FE: Antibiotics in Sarcoidosis – Reflections on the First Year. JOIMR 2003;1(3):2
Abstract A year has passed since our paper "Remission in Sarcoidosis", and, in that year, over 50 sarcoidosis patients have been early adopters of minocycline antibiotic therapy. Almost without exception, they have flourished. Additionally, a much better picture of the occult bacteria has emerged, and the mechanisms by which they assert their toxicity upon the immune system is taking form. Clinical experience has significantly clarified the precepts underpinning the use of tetracycline antibiotics to induce remission in sarcoidosis.
Prior Arguments Supporting the Bacterial Pathogenesis Similarities between Tuberculosis and Sarcoidosis have caused researchers to suspect a mycobacterial pathogenesis since, at least, Guy Scadding's Bradshaw Lecture in 1949 . Attempts at using anti-tuberculosis medications however, have been largely unsuccessful (for reasons that will be explained below). Du Bois, et al., [2,3] have postulated an etiology where "microbes are a likely trigger (but not as an infection) in a genetically predisposed individual" while Eishi, et al., have suggested that "sarcoidosis may arise from a Th1 immune response to one or more antigens of propionibacteria in an individual with a hereditary or acquired abnormality of the immune system". Bachelez et al  administered long-term minocycline and/or doxycycline in a cohort of twelve sarcoidosis patients, achieving remissions both of cutaneous lesions and pulmonary manifestations of the disease. Finally, Moller and Chen presented persuasive arguments  based, in part, on communication of sarcoidosis during transplant surgery, both from a sarcoidosis patient to one previously without the disease, and upon infection spreading into 'clean' tissues implanted into a sarcoidosis patient.
What does the pathology of Sarcoid Granuloma tell us? It is commonly believed "the immunologic process that leads to sarcoidosis begins when an antigen is presented to a macrophage via HLA class II molecules to a T Lymphocyte. This induces a Th1 T-lymphocyte response whereby cytokines are released that result in granuloma formation". However, a century of research has failed to definitively identify how the antigen-processes thus described could ever result in the characteristic pathology of the sarcoid granuloma. Further, while this description implies that the Th1 cytokine cascade should be associated with high levels of T-lymphocytes, the opposite is true:- advanced cases of sarcoid inflammation present with T-lymphopenia . This conventional description is based on an understanding of the immune system of healthy individuals, and it fails to describe the immune system of patients with sarcoidosis because the factors at work in immune disease are different from those at work in a healthy individual. The presence of cell-dwelling pathogens creates an entirely different immune environment, one where it is the pathogens 'calling the tune', and where the conventional sequence of antigen-to-T-lymphocyte activation is no longer the driving force. Cell-dwelling pathogens cause Th1 immune disease by utilizing an ability to mimic the T-cell Receptor alpha-beta V protein . They are thus capable of directly activating the 'host' monocytes, macrophages and giant-cells which they have parasitized. A cascade of cytokines and chemokines is then continuously released, directly by the parasitized 'host' cells, without the need for any activated T-lymphocytes to be present. The SARS Coronavirus is a pathogen with the apparent ability to virulently hyper-activate the immune system in this manner [9,10,11,12]. While the granuloma of sarcoidosis are formed by an accumulation of considerably less virulent pathogens than SARS, the anomalous T-cell Receptor alpha-beta V protein is similarly present . The granuloma of sarcoidosis are formed within inflamed tissue when sufficient lymphopenia-inducing parasites have colonized the monocytes, macrophages and giant-cells in order to sustain a self-activated and non-necrotic inflammatory core . The un-needed T-lymphocytes are down-regulated and expelled to the granuloma's periphery, forming the characteristic non-caseating granulomatous pathology of Sarcoidosis.
What Species of Microbes Have Been Found in Sarcoid Granuloma? In 1982 Cantwell  described a special type of bacteria, called 'Cell Wall Deficient' (CWD) bacteria (synonyms: L-form, pleomorphic, mollicutes, mycoplasma, cysts), which were minute granules in the inflamed tissue, appearing as 'coccoid' or 'cyst' semi-spherical forms. He found this bacteria in a variety of tissue samples from sarcoidosis patients. Cantwell recently published some colored micrographs of this CWD pathology . Mattman, et al., in 1996,  performed a careful study of blood samples from 20 sarcoidosis patients and 20 controls using an oil-immersion lens and the Intensified Kinyoun stain. Mattman also developed specialized media which were capable of culturing the CWD organisms she isolated from the CWD specimens. Cantwell reported that the CWD forms were extremely difficult to culture, even with special media, and that the cultures sometimes took several months to produce visible results. CWD bacteria grow and propagate very much more slowly than spirochetes and other walled forms. Recognizing this extremely slow growth is crucial when choosing an optimal antibiotic therapy. In 1989 Wirostko, Wirostko and Johnson  published transmission electron microscopy photographs of CWD bacteria living inside each type of immune cell:- lymphocytes, monocytes, macrophages and giant-cells. They used cells taken from the eyes of sarcoidosis patients. Finally, in 2002, Nilsson et al., published stunning electron microscopy of a bacterial organism replicating within the cells of a granuloma. Here was definitive evidence that not only could bacteria live within the phagocytic cells of the immune system, but also that the bacteria remained healthy, and they were able to flourish inside the hostile environment of the granuloma.
Lessons from Lyme Disease Until the widespread availability of PCR DNA assays there was a general reluctance to even recognize that CWD bacteria exist, and, if they did, that they might induce disease. The Lyme parasite, Borrelia burgdorferi, is one of the few bacteria that have been actively studied in both the spirochetal and mycoplasmal states. Borrelia studies can give us valuable information about the characteristics of the bacteria we are facing when treating the CWD bacteria of sarcoidosis. Dr. Willy Burgdorfer (who first discovered Borrelia burgdorferi) observed  "It's probably the answer for the difficulties we have in diagnosing Lyme and other spirochetal diseases, in that we can demonstrate these cysts by microscopy, but once they are in the tissues of the patient, we can no longer detect them. It is quite possible that this material that we cannot see by microscopy is responsible for producing prolonged and chronic disease." Further, Burgdorfer notes that when "the antibiotic or immune pressure is gone, and then when the conditions are right for their further development, they develop into typical spirochetes again." Borrelia spirochetes have been observed to revert to the CWD form when confronted with the immune components of spinal-fluid in-vitro, and then to transform back to mobile spirochetes in a less hostile environment . There have also been reports that patients whose immune systems have been suppressed with Remicade (and other TNF-á agonists) often present with Tuberculosis . Total elimination of the TNF-á cytokine apparently creates a less hostile immune environment, allowing the tissue-bound CWD mycobacterial organisms to transform into the mobile walled form, a form capable of propagating an active Tuberculosis infection. Although 'Chronic-lyme' is a lymphopenic disease, chronic-lyme patients do not usually form sarcoid granuloma. Borrelia burgdorferi appears to be a pathogen with insufficient lymphopenic activity to proliferate sarcoid granulomas on its own. However, together with other pathogens, it is frequently found as a component of sarcoid inflammation. Borrelia burgdorferi is also found as an inflammatory component of Lofgren's syndrome  and Lupus Erythematosus , presumably in combination with a different set of pathogens. Indeed [4,24,25,26,27] it seems that sarcoid granuloma hardly ever form in response to a single species of parasitic lymphopenia-inducing pathogen. Prudent therapeutic intervention must assume the presence of multiple species of CWD pathogen.
Satisfying Koch's Postulates It is important to note that bacteria can cause the Th1 immune reaction without morphing to the walled form, as we have previously detailed in a response to the Brown, et al., ACCESS study . This walled-CWD pleomorphism is key to understanding why a bacterial pathogenesis for Sarcoidosis has not been proven to the satisfaction of Koch's Postulates. However, it is instructive to note that Leprosy has never satisfied Koch's postulates, yet it is accepted that Leprosy indisputably has a bacterial pathogenesis.
Jarisch-Herxheimer – Indisputable Evidence of Bacterial Pathogenesis – And a Therapeutic Problem We have been following the progress of a heterogeneous mix of over 50 neurosarcoidosis, cutaneous sarcoidosis, and pulmonary sarcoidosis patients, some chronic (wheelchair-bound), and some newly diagnosed. Of these 'early adopters', all except two have reported a lifestyle-limiting Jarisch-Herxheimer Reaction [40,42]. Many of these reactions have been severe, some with (fortunately benign) cardiac involvement . Several required supplemental oxygen due to tightening of muscles in the trachea (oxygen had been unnecessary before the Herxheimer). We found the only way to minimize the risk of cardiac and respiratory complications is to start therapy with an extremely low dose of antibiotic and let the patient increase that dose, month by month, as the degree of Herxheimer allows. The Herxheimer reaction most commonly reported was an exacerbation of previous symptomology. Patients reported that it was just as though their sarcoidosis had become "much worse". Herxheimer usually disappears 24-48 hours after dosing, and reducing the dose also reduced the degree of discomfort experienced. Several patients reported that skin lesions became more prominent during the first few weeks of antibiotic treatment. Most of the 'early adopter' patients report that the Herxheimer has lasted for 3 months or more, and in several cases it has not totally disappeared after 9 months of continuous therapy.
The Biochemistry of the Th1 Immune Reaction The secosteroid hormone 1,25-dihydroxyvitamin-D is responsible for differentiation of hematopoetic cells into monocytes, and then for catalyzing monocyte differentiation into macrophages and giant-cells. It is an excellent marker of the presence of sarcoid inflammation, even when the serum ACE is masked by steroids or ACE Inhibitors [29,30]. The Angiotensin II Receptor blocker, Benicar (Olmesartan Medoxomil), administered as 40mg q6h or q8h, has been very effective at reducing the suffering of patients experiencing Herxheimer. Some 'early adopters' have called it a 'miracle drug'. ARBs suppress the release of TNF-á, apparently without disabling the immune system. When Angiotensin II binds at Type 1 receptors in the granulomas it signals the release of cytokines (including TNF-á) and chemokines via the NuclearFactor-kappaB pathway. We have previously published the detailed Th1 biochemistry [29,30] explaining why ARB therapy is so effective, and will avoid repetition in this review.
Antimicrobials Rifampin is an antimicrobial commonly used in Tuberculosis and Leprosy. This antimicrobial does not kill CWD organisms effectively. In fact, one study showed Mycobacteria changing into a Rifampin-resistant CWD form under the action of a triple therapy of rifampin, isoniazid and ethambutol . This drug is thus a poor choice for sarcoid therapy. Our aim should be to kill the CWD bacteria, not to create more of them. Hydroxychloroquine Sulfate (HCQ) (Plaquenil) is an anti-microbial which has been partially successful in a small group of sarcoidosis patients. But like Rifampin, it does not kill CWD organisms very effectively. In fact, "HCQ alone may be sufficient in the treatment of intracellular cystic forms .. at concentrations which are achievable in-vivo .. however, when the infection is located at the dermis .. the MBC (minimum bactericidal concentration) of HCQ is not achievable." Considering the widespread tissue distribution of CWD organisms reported by Cantwell , HCQ monotherapy is therefore not an optimal choice. Further, its use as a component of multiple-antibiotic therapies must also be questioned in view of the risk of serious ophthalmologic complications The Flouroquinolones have been reported with some activity against intra-cellular pathogens, albeit at one tenth the efficacy of doxycycline . One of the 'early adopter' patients was experiencing Herxheimer at only 50mg of minocycline, q48h. Minocycline was stopped, and he was placed on Ciproflaxin for 2 weeks to treat a kidney infection. There was no Herxheimer while using Cipro. As soon as the 50mg q48h minocycline was resumed, so did the Herxheimer. Neither the study nor this clinical observation bode well for the potential efficacy of Flouroquinolones against the CWD bacteria of Sarcoidosis. Minocycline has recently been recommended for the treatment of Rheumatoid Arthritis (RA). A University of Nebraska study found minocycline an effective treatment for RA, with remissions cumulative during all four years of the study . With a tissue penetration twice that of doxycycline , and a low incidence of side-effects, low-dose minocycline would seem to be the ideal antibiotic for treatment of sarcoid CWD bacteria. Many studies refer to a biochemical immunospressive property of minocycline. Each cites a previous paper, yet none cite a definitive source which might describe a specific biochemical activity to which this property is due, or exactly how minocycline might actually act to ‘suppress’ 'the immune system'. The problem of dealing with barely-detectable mollicutes within tissue is that one is tempted to ignore that they might exist. "Caution should therefore be exercised when interpreting Ang II-related data obtained from cells that have not been checked for mollicute contamination" is the admonition from Whitebread, et al. Yet we have sifted through dozens of papers citing this ill-defined immunosuppressive property for Minocycline. Not one of them has considered the liklihood of 'mollicute contamination'. We formed the opinion that the experimental outcomes of the studies invoking such a property can all be explained solely by consideration of minocycline's antimicrobial actions against mollicute-like bacterial organisms. We do not believe Minocycline has ever been proven to possess a chemically-based immunosuppressive ability, and this belief was reinforced by numerous clinical observations during our study. We note particularly that antibiotics other than the tetracyclines have been effective at inducing remission. Our 'early adopters' are primarily using Minocycline, with a dose determined solely by the level of Herxheimer they can tolerate (from 25mg q48h up to a maximum dose of 200mg q48h). A few used Doxycycline initially, then changed to Minocycline. Even though the tetracyclines are bacteriostatic, they produce intense and lengthy Herxheimer reactions in sarcoid patients, further highlighting the difference between fighting CWD microbes and blood-borne bacteria. We also found that Azithromycin, Clarithromycin and Sulfa/Trimeth were effective at treating neuro, eye, and sinus manifestations when they were used at a low dosage in combination with low-dose minocycline.
Intermittent Dosing We have previously demonstrated [36,37] how intermittent dosing of a drug can radically change its properties in Cryptorchidism and Diabetes. We were thus intrigued by Thomas McPherson Brown's book "The Road Back", where he chronicles half a century of antibiotic treatment in a disease that he was convinced was due to CWD bacteria (RA). Albert Sabin and he had simultaneously isolated mycoplasmas while they were both at Rockefeller Institute in the late 1930s. Brown was convinced that the body had to be given time to clear away dead cells in between antibiotic doses, if the therapy was to be optimally effective against CWD bacteria. The 'early adopters' have proven him correct. Most are using a q48h dosing interval, slipping to q72h, or even longer, during significant Herxheimer events. Herxheimer has, at times, made antibiotic therapy become somewhat onerous for many of the 'early adopters', and intermittent dosing has been a significant factor in in improving patient tolerance and ensuring compliance.
Limitations in Study Methodology Ours is a Phase II observational study. Many of the patients in this cohort are Health Care workers (Physicians, Nurses and ex-Nurses), and thus are not necessarily representative of the patient population as a whole. Therapy was prescribed and monitored by the patients’ personal physicians. Since the recruitment and ongoing support was provided over the Internet, all patients needed to have a level of education sufficient to operate Internet-capable Computers. These factors are all capable of introducing bias into the study results. Further bias could be introduced by the lack of a standardized results questionnaire (it was adjudged impractical to produce a standardized questionnaire which could meaningfully evaluate a heterogeneous cohort of Cutaneous, Cardiac, Pulmonary and Neuro-sarcoidosis patients). To compensate for these biases, extreme care was taken to document adverse events, especially adverse outcomes, and correspondence was publicly logged and reviewed by both investigators. Despite these reservations, the remission induced by this Antibiotic/ARB protocol was dramatic, and it is unlikely that any of these methodological limitations were sufficient to have skewed the study’s conclusions.
In Summary The >50 'early adopters' are a heterogeneous mix of neurosarcoidosis, cutaneous sarcoidosis, cardiac and pulmonary sarcoidosis patients. Some cases are chronic (wheelchair-bound) and some are newly diagnosed. All but three patients report progress induced by minocycline alone, or by the combination of olmesartan medoxomil (40mg q6-8h) and minocycline (<200mg q48h). Sarcoid inflammation is proving to have a primary, homogeneous, bacterial pathogenesis [28,45].
Acknowledgements The authors are indebted to Belinda Fenter and Meg Mangin for their invaluable assistance and encouragement, Alan Cantwell, Jr., for critical insights into CWD bacterial pathology and Tetracycline efficacy, and Prof. Robert E. Lee for providing the breakthrough which finally allowed all the pieces of the puzzle to fit together. Finally, thanks are due to Barry Marshall (aka "Mr. Helicobacter Pylori") from Trevor's alma mater (The University of Western Australia) who first showed that, with dedication and persistence, a kid from Perth really could make a difference…
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