METHOD AND DEVICE FOR THE EXTRACORPOREAL REMOVAL OF PATHOGENS AND/OR AN EXCESS OF COMPONENTS FROM A CELL SAMPLE OF A PATIENT
20210008271 ยท 2021-01-14
Inventors
Cpc classification
International classification
A61M1/36
HUMAN NECESSITIES
Abstract
The invention relates to a method for the extracorporeal removal of pathogens and/or an excess of components from a cell sample of a human or animal patient suffering from an illness. The method comprises the steps: a) determination of at least one protein cluster (CMP) that is characteristic of the illness of the patient; b) preparation of the cell sample of the patient; and c) extracorporeal removal of components having the at least one determined protein cluster from the cell sample. The invention further relates to a device for carrying out said method.
Claims
1. A method for extracorporeal removal of pathogenic and/or an excess of components from a cell sample of a human or animal patient suffering from a disease including the following steps: a) determining at least one protein cluster (CMP), which is characteristic of the disease of the patient; b) providing the cell sample of the patient; and c) extracorporeal removal of components having the at least one determined CMP from the cell sample.
2. The method according to claim 1, wherein: a body fluid, and/or a tissue sample of the patient are provided as the cell sample.
3. The method according to claim 1, wherein the at least one CMP is determined based on a database and/or by means of a multi-epitope ligand cartography (MELK) and ICM method (Multi-epitope ligand cartography/imaging cycler microscopy), respectively, and/or by means of a MELK robot system and/or that the extracorporeal removal of the components is monitored and/or controlled by means of a MELK and ICM method, respectively, and/or by means of a MELK robot system.
4. The method according claim 1, wherein the disease is a tumor disease and/or an inflammatory disease.
5. The method according to claim 1, wherein the extracorporeal removal is performed by means of an apheresis method and/or by means of an apheresis device.
6. The method according to claim 5, wherein an unselective apheresis and/or a selective apheresis and/or a whole-blood apheresis and/or a photopheresis are performed as the apheresis method and/or that the apheresis device for performing at least one apheresis method is formed from the group of unselective apheresis, selective apheresis, whole-blood apheresis and photopheresis.
7. The method according to claim 1, wherein at least one streptamer and/or at least one antibody and/or at least one ligand, in particular a variable single-chain fragment (scFv) and/or a multivalent antibody fragment (scFv multimer), are used for extracorporeal removal.
8. The method according to claim 7, wherein the at least one streptamer and/or the at least one antibody and/or the at least one ligand specifically bind and/or inactivate a leading protein characteristic of the disease.
9. The method according to claim 1, wherein the disease is amyotrophic lateral sclerosis (ALS) and/or that the cell sample is a blood sample of the patient and/or that the at least one CMP includes one or more of the group of CD16, CD8, NeuN, Bax, Bcl2, CD11b, CD138, CD16A, CD29, CD2, CD45RA, CD49d, CD54, CD56, CD57, CD58, CD62L, CD3, HLADR, immunoglobulin G, MHCII, MHCI, SIRT1, RAC1, BMX, GAK, JNK2, MAPKK6, OTUB2, PRKAR2A, SMAD2, SMAD4 and STAP2 and/or that the components are extracorporeally removed by means of at least one antibody and/or ligand, which bind at least one from the group of CD16, CD8, NeuN, Bax, Bcl2, CD11b, CD138, CD16A, CD29, CD2, CD45RA, CD49d, CD54, CD56, CD57, CD58, CD62L, CD3, HLADR, immunoglobulin G, MHCII, MHCI, SIRT1, RAC1, BMX, GAK, JNK2, MAPKK6, OTUB2, PRKAR2A, SMAD2, SMAD4 and STAP2, and/or by means of a CD16 ectodomain shedding molecule.
10. The method according to claim 9, wherein an antibody and/or ligand is used for extracorporeal removal, which binds two or more from the group of CD16, CD8, RAC1, STAP2 and SMAD2.
11. The method according to any one of claim 1, wherein the disease is prostate cancer and/or that the cell sample is prostate tissue and/or that the at least one CMP includes one or more of the group of CD26 and CD29 and/or that the components are extracorporeally removed by means of at least one antibody and/or ligand, which bind at least one of the group of CD26 and CD29.
12. The method according to claim 11, characterized in that the at least one CMP also includes CD44 and/or CD54 and/or CD138 and/or in which at least one of CD3, CD4, CD8, CD10, CD13, CD19, CD20, CD38, CD49d, CD58 and CD80 lacks.
13. The method according to claim 11 or 12, wherein an antibody and/or ligand are used for extracorporeal removal, which bind at least one or more of the group of CD26, CD29, CD44, CD54 and CD138.
14. The method according claim 1, wherein the disease is a cutaneous lymphoma and/or that the cell sample is a skin sample and/or that the at least one CMP includes one or more of the group of HLA-DQ, CD2, CD3, CD4, CD7, CD8, CD10, CD13, CD18, CD18, CD26, CD29, CD36, CD44, CD45, CD49f, CD54, CD56, CD57, CD58, CD62L, CD71, CD80 and HLA-DR and/or that the components are extracorporeally removed by means of at least one antibody and/or ligand, which bind at least one of the group of HLA-DQ, CD2, CD3, CD4, CD7, CD8, CD10, CD13, CD18, CD18, CD26, CD29, CD36, CD44, CD45, CD49f, CD54, CD56, CD57, CD58, CD62L, CD71, CD80 and HLA-DR.
15. The method according to claim 1, wherein the cell sample is again returned to the patient after the partial or complete extracorporeal removal of the components, which have the at least one determined CMP.
16. A device, which is formed for performing a method according to claim 1.
17. The device according to claim 16, which is formed for performing at least one apheresis method from the group of unselective apheresis, selective apheresis, whole-blood apheresis and photopheresis.
18. (canceled)
Description
[0030] Further features of the invention are apparent from the claims, the figures and the description of figures. The features and feature combinations mentioned above in the description as well as the features and feature combinations mentioned below in the description of figures and/or shown in the figures alone are usable not only in the respectively specified combination, but also in other combinations without departing from the scope of the invention. Thus, implementations are also to be considered as encompassed and disclosed by the invention, which are not explicitly shown in the figures and explained, but arise from and can be generated by separated feature combinations from the explained implementations. Implementations and feature combinations are also to be considered as disclosed, which thus do not comprise all of the features of an originally formulated independent claim. There shows:
[0031]
[0032]
[0033]
[0034]
[0035]
[0036]
[0037]
[0038]
[0039]
MECHANISMS OF THE ALS IN THE TOPONOME
[0040] Synopsis of the ALS toponome: Analyses of the cell surfaces of immune cells of the blood have shown that a specific abnormal toponome occurs in ALS. An essential feature is the existence of aberrant T lymphocytes, which also express the CD16 receptor complex besides the CD8 receptor. Exactly the same cell forms are found in the morphologically well preserved ALS postmortal tissue within post-capillary venules of the spinal pyramidal tract (
[0041] To sum up: CD16 is required to control the abnormal homing of aberrant CD8 cells into the pyramidal tract. When this homing process is completed, the cells degrade (lose) the CD16 complex, then migrate between the myelinated neurons as CD8+CD16 cells, penetrate through the myelin sheaths and axotomize neurons. This process is obviously primarily autonomous since the cells are never observed in context with cell debris, thus signs of primary neuronal degradation. Therefore, the cells play a primary pathogenetic role. This interpretation is supported by the fact that the down-regulation of CD16 results in a stop of the disease progression: if CD16 is no longer available as in
[0042] Coexpression Pattern
[0043] The invasive cells according to
Bax, Bcl2, CD11 b, CD138, CD16A, CD29, CD2, CD45RA, CD49d, CD54, CD56, CD57, CD58, CD62L, CD8, HLADR, Immunoglobulin G, MHCII, MHCI, NeuN, SIRT1, RAC1, BMX, GAK, JNK2, MAPKK6, OTUB2, PRKAR2A, SMAD2, SMAD4 and STAP2.
[0044] NeuN (Fox-3, Rbfox3 or hexaribonucleotide binding protein-3) is a neuronal, nuclear antigen, which is normally used as a biomarker for neurons.
[0045] The nuclear coexpression of NeuN and CD49d as well as the cytoplasmic expression of immunoglobulin G (IgG) together with the CD16 carrying vesicles from
[0046] Proteins, which are partially patient-specific, that is colocalized with CD8 and/or CD16 in ALS-indicative cells with individually different probability or frequency, are indicated in table 1. Thus, all of these proteins represent therapeutic target structures (targets) individually or in combination with CD8 and/or CD16, since deactivation of these proteins results in collapse of the intracellular information flow and thereby in functional loss of the aberrant cells.
TABLE-US-00001 TABLE 1 Official Protein symbol Official name BMX [BMX] BMX non-receptor tyrosine kinase GAK [GAK] cyclin G associated kinase JNK2 [MAPK9] mitogen-activated protein kinase 9 MAPKK6 [MAP2K6] mitogen-activated protein kinase kinase 6 OTUB2 [OTUB2] OUT deubiquitinase, ubiquitin aldehyde binding 2 PRKAR2A [PRKAR2A] protein kinase cAMP-dependent type II regulatory sub-unit alpha RAC1 [RAC1] ras-related C3 botulinum toxin substrate 1 (rho family, small GTP binding protein Rac1) SMAD2 [SMAD2] SMAD family member 2 SMAD4 [SMAD4] SMAD family member 4 STAP2 [STAP2] signal transducing adaptor family member 2 SIRT1 [SIRT1] nicotinamide adenine dinucleotide-dependent protein deacetylase
The cell from
[0047] Significance: The above described invasive cell is detectable as an ALS-specific cell with the above mentioned features in blood or in tissue samples by spatial toponome analysis. Since the invasion behavior thereof into the pyramidal tract is known, as set forth above, and since it is further known that the cell obviously transforms to a NeuN positive T cell by phenotype switching (CD16-), which axotomizes neurons, the detection of cells of the CD16/CD8 phenotype from
[0048] The described two-step process (homing of aberrant NeuN positive blood cells into the pyramidal tract, the transformation thereof into NeuN positive T cells, which injure the surfaces of neural cells) presents a violation of basic rules of the cooperation of cells of various germ layers: In intact systems, these rules are based on the fact that cells from different germ layers comply with the rule of the non-injury of the mutual cell surfaces. In case of ALS, the transformed T cell-like cells (germ layer mesenchyme) injure the surfaces of neurons (germ layer ectoderm). Thereby, a physical trans-cellular cross-linking of the two germ layer functions with the consequence of the interruption of the neural pathways to the arbitrary musculature occurs. The fact of the expression of NeuN in the cell nucleus of the acting cells (immune cells in the circulation and after invasion into the neural system of the pyramidal tract) means that these cells follow a program of aberrant neuronal stem cells, since NeuN is only expressed in neurons under physiological conditions. Thereby, NeuN can be used as a marker for the presence of ALS causing cells, that is for diagnosis of the ALS.
[0049] In order to block the molecular program of these aberrant cells, that is as a therapy measure for treating a patient suffering from ALS, various extracorporeal methods lend themselves to extracorporeally remove the pathogenic cells expressing the leading protein CD16.
[0050] Hereto, the blood of the patient can be subjected to therapeutic apheresis, in which the pathogenic cells are removed from the blood with the aid of preferably immobilized antibodies and/or ligands, which bind CD16. Alternatively or additionally, immobilized antibodies and/or ligands, which bind CD8 and/or RAC1 and/or STAP2 and/or SAMD2, can preferably also be used. Similarly, it is possible to use multiple different antibodies and/or ligands, which are arranged together and/or one after the other viewed in flow direction of the blood, such that a multi-stage depletion of the pathogenic components of the blood results. Alternatively or additionally, it is possible to fractionate the blood before extracorporeal removal of the pathogenic cells, for example by centrifugation.
[0051] Alternatively or additionally, it is possible to treat the blood by photopheresis, wherein the optionally fractionated blood is irradiated with light of certain wavelength(s) for a predetermined time to inactivate the pathogenic cells.
[0052] A therapeutic depletion of ALS cells, that is of cells, which carry the ALS-specific CMP, in the blood of patients, which were affected with ALS, was achieved as follows:
[0053] First, blood samples of multiple patients, which were suspected of being affected with amyotrophic lateral sclerosis (ALS), were examined with the aid of the imaging cycler technology (MELK/ICM method) with a combinatorial molecular resolution of up to 4.510.sup.481. Hereto, a toponome imaging system (TIS) of the company ToposNomos Ltd. (Munich, Germany) was used. Patients, in which so-called ALS cells, that is cells with ALS-typical CMPs, were detected, were categorized as affected with ALS, wherein the individual patients each had different progression durations of the disease. The identified patients were then subjected to a photopheresis treatment. Photopheresis allows performing a specific depletion method such that the number and concentration of ALS cells in the blood of the patients can be considerably, that is down below the detection limit, reduced. As it has turned out, the patients subjectively felt better if more than 1 liter of blood volume, that is at least 2 and preferably up to 5 liters of blood volume, were passed through the device for treatment within the scope of a photopheresis cycle.
[0054] As it could be assessed by the initial examination and subsequent progression controls with the aid of the imaging cycler technology, the cell number of the ALS cells in the blood very exactly correlates with the progression speed of the disease. For example, in a patient with about 50 millions of ALS cells per liter of blood, the disease proceeded less than half as fast as in a patient with about 140 millions of ALS cells per liter of blood. This as well as the above discussed realization that exactly these ALS cells migrate into the pyramidal tract (pathologic homing) after conversion of the cell surface, where they axotomize the axons in the pyramidal tract, represent a further evidence that the ALS cells detected in the blood are the crucial pathogenetically relevant cells and thereby a central target of the ALS treatment.
[0055] The therapeutic depletion of these ALS cells in the blood always succeeded very securely by means of photopheresis in all of the patients treated up to now. Already after few photopheresis cycles, typically about 2 to 6 cycles, virtually no ALS cells could be detected in the blood anymore. One observes particular effects in initial stages of the ALS disease. Thus, the disease is no longer progredient in the treated patients since about 5 months or longer according to previous observations, the electrophysiological parameters (EMG etc.) did not show any further progression and the treated patients felt considerably better. In particular, no or hardly any florid EMG activities can be assessed in the treated patients.
[0056] As it appeared in some patients, the ALS cells can return in the blood in pauses between the photopheresis cycles. The returning ALS cells can again be completely brought to depletion by means of photopheresis. According to previous knowledge, this procedure can be repeated any number of times such that at least progress of the ALS disease can be stopped or considerably decelerated. In addition, it was observed that the pathogenic ALS-specific combinatorial CMP motifs of the ALS cells decreased at least by a factor of 100 after the return thereof in the blood. Similarly, the number of the disease-specific molecular combinatorics on the cell surface (the so-called combinatorial molecular phenotypes, CMPs, with code (=1) and anti-code (=0) (Schubert W. et al., Nat. Biotechnol 2006)) of the individual ALS cells considerably decreased. This effect stably appears over the period of time examined up to now. Since cell surface CMPs on the surface of these pathologic ALS cells decelerate the rolling phenomenon until stop in the postcapillary, the site of invasion, the decrease of the number of these CMPs induced by photopheresis will deteriorate the pathologic homing after rolling and thereby stop or at least greatly decelerate the disease process at the pathogenesis site of the invasion.
[0057] Further possibilities to extracorporeally remove the pathogenic cells with the aid of apheresis methods include:
[0058] 1. Use of molecules (antibodies/ligands), which bind and/or block/inhibit IgG (1/3) and block/inhibit the physiological mechanism of the IgG mediated activation of CD16, respectively. An example hereto are antibodies against IgG and (optionally recombinant) streptococcus protein G;
[0059] 2. Blocking (e.g. by cross-linking) of the ALS-specific cluster CD16a+CD8+STTP1, for example by means of at least one bi-, tri- or multi-specific antibody (recombinant, human, de novo etc.), which is preferably present bound to a matrix. Herein, STTP1 denotes the optionally patient-specific signal protein (signal transduction protein 1, e.g. kinase), which mediates the signal cascade originating from the cell nucleus and is coupled on the surface of the cell together with the module CD16a and CD8 and is colocalized with CD16a and CD8, respectively. STTP1 can be individually determined and controlled, respectively, for the concerned patient with the aid of the MELK and/or ICM technique (multi-epitope ligand cartography and imaging cycler microscopy, respectively) known per se.
[0060] STTP1 can for example be one or more proteins from the group of RAC1, STAP2 and/or SMAD2 and/or another protein from the signal transduction chain of ALS cells. A corresponding antibody, for example a tri-specific anti-CD16a-CD8-STTP1 antibody, can then also be produced via production methods known per se and be used for therapy of the concerned patient. Since such a tri-specific antibody has an extremely high selectivity for abnormal, ALS-specific cells, such a treatment is particularly low in side effects;
[0061] 3. Use of molecules, which effect the proteolytic separation of the extracellular CD16 domains (ectodomains) (so-called shedding and ectodomain shedding, respectively). An example hereto is the use of preferably immobilized Adam17 (metallopeptidase domain 17), which is also called TACE (tumor necrosis factor converting enzyme). Adam17 is a 70 kDa enzyme, which belongs to the ADAM protein family of disintegrins and metalloproteases. Adam17 and the respective CD16 molecule capable of shedding can optionally be coupled to a mono-, bi-, tri-or multi-specific antibody (see item 2) to advantageously increase its specifity;
[0062] 4. Use of at least one mono-, bi-, tri- or multi-specific anti-CD16 antibody (recombinant, human, de novo etc), which is preferably immobilized on a matrix material;
[0063] 5. Use of at least one mono-, bi-, tri- or multi-specific anti-NeuN antibody (recombinant, human, de novo etc.), which is preferably immobilized on a matrix material;
[0064] 6. Use of streptamers and/or magnetic beads for removing the pathogenic CD16 cells.
[0065] Therein, it can be provided that the pathogenic cells are not or not completely removed from the blood sample, but are extracorporeally inactivated such that they lose their biological functionality.
[0066] The above mentioned compounds (drugs) can basically be administered individually or in any combination within the scope of an apheresis method. The efficacy and the extent of removal should be monitored and optionally adapted by regular control. The control can for example be performed with the aid of the above described diagnostic method. Upon successful removal, significantly less or preferably no abnormal ALS-specific cells (see above) anymore can usually be assessed in the cell or blood sample of the concerned patient.
[0067] Thereby, numerous ALS-specific supra-individual and/or individual therapeutic options generally arise. A supra-individual therapy can be directed to the ALS-specific surface proteins (CDs) and surface protein clusters, respectively, which are cross-linked, inhibited or bound to a matrix. In addition, central signal chain molecules of ALS cells can optionally be cross-linked, inhibited or bound to a matrix. For example, the cell surface proteins CD8/CD16A/CD45RA can optionally be extracorporeally blocked together with the signal chain molecule RAC1, since they occur directly associated exclusively in ALS cells. Such a therapy can for example be effected with the aid of bi-, tri- and/or tetra-specific antibodies and by corresponding single-chain variable fragments (scFv) or multivalent antibody fragments (scFv multimers), respectively, that is by so-called diabodies, triabodies or tetrabodies.
[0068] Individual targets, which can be therapeutically addressed alternatively or additionally to the above indicated ALS-specific clusters, include individual clusters of CD16/CD8 with the molecules STAP2 and/or SMAD2 as well as optionally combinations of the molecules indicated in table 1 together with the CD8/CD16 cluster or also as isolated clusters without CD8/CD16. These clusters too can be deactivated with the aid of optionally multi-specific antibodies and/or antibody fragments.
[0069]
[0070] In contrast, the protein identified by square occurs in none of the CMPs 1-3 such that this protein is an anti-colocalized protein (Aabsent, 0, false). The other proteins (triangle, pentagon) are variably associated with the leading protein and thus represent so-called wildcard proteins (W, *).
[0071]
[0072]
[0073] Accordingly, prostate cancer can be treated analogously to the ALS by extracorporeal removal of components and cells, which have CMPs, which include at least CD26 and/or CD29 as disease-specific leading proteins. Hereto, an apheresis and photopheresis method, respectively, can for example be used, in which the CD26/CD29 expressing cells are separated and/or inactivated or destructed in the above described manner.
[0074]
[0075]
L: HLA-DQ
A: CD2, CD10, CD18, CD54, CD57, CD58, CD62L, CD80
W: CD3, CD4, CD7, CD8, CD13, CD26, CD29, CD36, CD44, CD45, CD49f,
[0076] CD56, CD71, HLA-DR, cytok., histones.
[0077] Accordingly, the cutaneous lymphoma can be treated analogously to the ALS by extracorporeal removal of components and cells, which have CMPs, which at least include HLA-DQ as the disease-specific leading protein. Hereto, an apheresis and photopheresis method, respectively, can for example be used, in which the HLA-DQ expressing cells are separated and/or inactivated or destructed in the above described manner.
[0078] Therefore, the method can basically include a combination of the toponome technology with methods of isolating cells from body fluids and/or tissues. By application of the toponome technology, cells can be extremely accurately classified by co-mapping thousands of multi-protein complexes. In this manner, the disease-specific cells and CMPs, respectively, are found. The concerned cells can then be specifically isolated with methods known per se and be further used for diverse purposes, e.g. cloning, extracorporeal expansion, retransfer into tissues and blood, respectively, therapeutic applications etc. A particular aspect is the isolation of disease-specific cells from the blood circulation, which migrate into organs as autoimmune cells or aberrant cells of the immune system, where they specifically destruct tissue structures. In the latter case, e.g. the isolation of such cells from the blood circulation by a therapeutic apheresis/photopheresis would be a much targeted measure with the aim of stopping the disease progression since the disease-specific cells can be exactly predefined by high-dimensional toponome mapping such that they can be specifically removed via isolation from the circulation based on antibodies. Via consecutive monitoring by means of toponome mapping of the blood, the efficiency of the method can be controlled. A further advantage is in the use of such cells for the development of medicaments for selective blocking/elimination of such cells or in case of stem cells for reinfusion into the organism (e.g. therapeutic organ regeneration or tumor therapy) or for use for the development of diagnostics or for the therapy of the amyotrophic lateral sclerosis (ALS) or other diseases by removal of pathogenic cells from the blood circulation to prevent the biological mechanism thereof, in case of ALS the invasion into the motor neuron system and the neurotoxic damaging mechanisms thereof.
[0079]
[0080]
[0081] The parameter values indicated in the documents for the definition of process and measurement conditions for the characterization of specific characteristics of the inventive subject matter are to be considered as encompassed by the scope of the invention also within the scope of deviationsfor example due to measurement errors, system errors, weighing errors, DIN tolerances and the like.